{"title":"Inserts","description":"","products":[{"product_id":"osburn-1700-i-wood-insert","title":"Osburn 1700-I Wood Insert","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #231F20; line-height: 1.55; width: 100%; max-width: 100%; box-sizing: border-box; margin: 0; padding: 0; font-size: 16px; overflow-wrap: break-word; word-wrap: break-word; word-break: normal;\"\u003e\n\n\u003cstyle\u003e\n  .km-desc, .km-desc * { box-sizing: border-box; max-width: 100%; }\n  .km-desc { width: 100%; }\n  .km-desc p { margin: 0 0 14px; }\n  .km-desc h3 { font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px; font-weight: 600; color: #9B774D; margin: 22px 0 10px; }\n  .km-desc .spec-list { margin: 12px 0 0; }\n  .km-desc .spec-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .spec-row:first-child { border-top: 1px solid rgba(75,72,75,0.35); padding-top: 14px; }\n  .km-desc .spec-label { font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px; font-weight: 600; color: #4B484B; margin-bottom: 6px; }\n  .km-desc .spec-value { font-weight: 600; font-size: 15px; color: #231F20; margin-bottom: 6px; line-height: 1.35; }\n  .km-desc .spec-meaning { color: #4B484B; font-size: 13px; line-height: 1.55; }\n  @media (min-width: 720px) {\n    .km-desc .spec-row { display: grid; grid-template-columns: 38% 30% 1fr; gap: 16px; align-items: start; padding: 12px 0; }\n    .km-desc .spec-label { margin-bottom: 0; align-self: center; }\n    .km-desc .spec-value { margin-bottom: 0; font-size: 14px; align-self: center; }\n    .km-desc .spec-meaning { font-size: 13px; }\n    .km-desc .spec-row:first-child { padding-top: 12px; }\n  }\n  .km-desc .data-row { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; padding: 12px 0; border-bottom: 1px solid rgba(75,72,75,0.12); align-items: baseline; font-size: 13px; }\n  .km-desc .data-head + .data-row { border-top: 1px solid rgba(75,72,75,0.35); }\n  .km-desc .data-row .data-label { color: #4B484B; line-height: 1.4; }\n  .km-desc .data-row .data-val { font-weight: 600; color: #231F20; text-align: right; min-width: 56px; }\n  .km-desc .data-head { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; padding-bottom: 8px; font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px; font-weight: 600; color: #4B484B; }\n  .km-desc .data-head span:nth-child(2), .km-desc .data-head span:nth-child(3) { text-align: right; min-width: 56px; }\n  .km-desc ul { list-style: none; padding: 0; margin: 10px 0 14px; }\n  .km-desc ul li { padding: 4px 0 4px 18px; position: relative; line-height: 1.55; }\n  .km-desc ul li:before { content: \"—\"; position: absolute; left: 0; color: #9B774D; font-weight: 500; }\n  .km-desc .compare-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .compare-row:last-child { border-bottom: 0; }\n  .km-desc .compare-name { font-weight: 600; color: #231F20; display: inline-block; padding-bottom: 1px; }\n  .km-desc .compare-orient { color: #4B484B; margin-top: 4px; font-size: 13px; line-height: 1.5; }\n  .km-desc .pull { font-style: italic; font-size: clamp(16px, 4.2vw, 22px); line-height: 1.4; color: #231F20; border-left: 2px solid #9B774D; padding: 0 0 0 16px; margin: 32px 0 16px; }\n  .km-desc .lede { font-size: clamp(16px, 4vw, 22px); line-height: 1.4; letter-spacing: -0.2px; font-weight: 400; color: #231F20; margin: 0 0 24px; }\n  .km-desc .warranty-note { font-size: 12px; color: #4B484B; font-style: italic; margin-top: 14px; }\n  .km-desc details { border-top: 1px solid rgba(75,72,75,0.18); margin: 0; padding: 0; }\n  .km-desc details:last-of-type { border-bottom: 1px solid rgba(75,72,75,0.18); }\n  .km-desc details \u003e summary { list-style: none; cursor: pointer; padding: 18px 32px 18px 0; position: relative; font-size: clamp(16px, 4.2vw, 20px); line-height: 1.3; font-weight: 500; color: #231F20; letter-spacing: -0.2px; }\n  .km-desc details \u003e summary::-webkit-details-marker { display: none; }\n  .km-desc details \u003e summary::after { content: \"+\"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-size: 22px; font-weight: 300; color: #9B774D; line-height: 1; }\n  .km-desc details[open] \u003e summary::after { content: \"−\"; }\n  .km-desc details \u003e summary:focus-visible { outline: 2px solid #9B774D; outline-offset: 4px; }\n  .km-desc details \u003e .acc-body { padding: 0 0 28px 0; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"km-desc\"\u003e\n\n\u003cp class=\"lede\"\u003eA 1.86 ft³ non-catalytic medium wood insert — the Osburn-tier version of the SBI medium-insert platform with the arched cast-iron door and configurable door overlay in Black or Brushed Nickel. EPA 2020 cordwood certified at 68% HHV efficiency, with an 18-inch maximum east-west log capacity, up to 1,800 sq ft of heating area, a 7-hour maximum burn time, 65,000 BTU\/hr maximum output, and a powerful 144 CFM heat-activated blower included as standard.\u003c\/p\u003e\n\n\u003cdetails open\u003e\n\u003csummary\u003eWho this is for\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003ch3\u003eRight buyer\u003c\/h3\u003e\n\u003cp\u003eOwners of a working masonry fireplace with a medium-sized opening who want to convert an inefficient open hearth into a serious primary heat source — up to 1,800 sq ft of zone heating capability with a 1.86 ft³ firebox, 18-inch log capacity, and a 7-hour maximum burn cycle. Reasonable insulation, access to seasoned hardwood at 15–20% moisture, and an existing masonry fireplace that meets the minimum opening dimensions (21 1\/2\" H × 27 1\/2\" W × 12 7\/8\" D per manual) are the basic requirements.\u003c\/p\u003e\n\u003cp\u003eBuyers heating 1,200–1,600 sq ft in moderate climates. The Osburn 1700-I is the medium-sized insert in the Osburn line — bigger than the smaller Osburn 950 and smaller than the Osburn Matrix Insert and Osburn 3500 Insert. For homes in the medium range, it's the right size firebox to deliver real primary winter heat without overheating the space.\u003c\/p\u003e\n\u003cp\u003eBuyers who want the Osburn-tier aesthetic at the medium-insert size. The 1700-I shares its mechanical platform with the Enerzone Solution 1.7-I (same firebox, same blower, same efficiency, same emissions, same burn cycle) but ships with the configurable cast-iron door overlay in Black or Brushed Nickel — a customization layer the Enerzone version doesn't offer.\u003c\/p\u003e\n\u003cp\u003eBuyers who want a customizable Osburn aesthetic. The arched cast-iron door accepts a configurable door overlay in Black or Brushed Nickel, paired with a matching faceplate (Regular or Large) and trim in the same finish.\u003c\/p\u003e\n\n\u003ch3\u003eWrong buyer\u003c\/h3\u003e\n\u003cp\u003eNot for buyers without an existing code-compliant masonry fireplace. Wood inserts must be installed inside a lined masonry fireplace with a continuous stainless-steel chimney liner running the full height. This insert is not approved for factory-built (prefab) metal fireplaces, mobile homes, or any installation outside a masonry hearth.\u003c\/p\u003e\n\u003cp\u003eNot for buyers needing to heat more than 1,800 sq ft as primary winter heat. For larger spaces, step up to the Osburn Matrix Insert (75,000 BTU, larger firebox) or the Osburn 3500 Insert.\u003c\/p\u003e\n\u003cp\u003eNot for buyers expecting 10+ hour overnight burns. The 7-hour manufacturer maximum is achievable on a packed load of dense hardwood with the air shut down hard, but useful heat from a packed load is realistically 5–6 hours. For longer burns, step up a firebox size or consider catalytic technology.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eAt a glance\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cdiv class=\"spec-list\"\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion technology\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNon-catalytic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eSecondary-air tubes reignite smoke gases. No catalyst to replace; one air-control lever; simpler operation than a cat stove but shorter low-and-slow burn times.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eInstallation type\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMasonry insert\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInstalls inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. Not approved for factory-built fireplaces, mobile homes, or freestanding installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFirebox volume\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e1.86 ft³ overall \/ 1.44 ft³ EPA\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Medium firebox sized for zone heating across 500–1,800 sq ft. The overall figure includes a buffer zone above the EPA loading line; the 1.44 ft³ figure is the usable loading volume used during EPA emissions certification.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum heat output\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e65,000 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePeak output on dry cordwood, transient. Sustained output across a burn cycle is substantially lower.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eTested output range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e9,800–52,200 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer CSA B415.1-10 stack-loss method. A notably wide tested range — the Osburn 1700-I delivers usable heat from very low burn rates (shoulder-season) up to strong cold-snap output.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eHeating range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e500–1,800 sq ft\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer's stated range. Real-world comfort sizing for primary heat is roughly 1,000–1,500 sq ft in moderate climates and lower in cold climates or older homes — depends on insulation, layout, climate, ceiling height, fuel quality, and installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eAverage efficiency\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e68% HHV \/ 73% LHV\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003e76% optimum overall efficiency at low burn rate; 75% optimum heat transfer efficiency. HHV is the federal standard. Government incentives may apply by jurisdiction and installation date.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eParticulate emissions\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e2.4 g\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. EPA 2020 limits are 2.0 g\/hr crib-wood or 2.5 g\/hr cordwood. The insert is listed as compliant with the 2020 cordwood standard.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum burn time\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUp to 7 hours\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer maximum at the lowest air setting. Useful heat through a burn cycle is realistically 5–6 hours.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eRecommended log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e16 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Most firewood suppliers cut to this length.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e18 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eLogs load across the width of the firebox, sides visible from the door. 2-inch margin over standard 16-inch supplier cuts.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eConstruction\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eCarbon steel, cast-iron door\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eWelded carbon-steel firebox with an arched cast-iron glazed door. Lifetime warranty on the combustion-chamber welds.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eGlass\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e15 3\/4\" × 9 3\/8\", ceramic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eArched ceramic glass with air-wash, 5\/32\" (4 mm) thick, tested to 1,400 °F per manual. Replacement must be SCHOTT ceramic with the same specification — tempered or ordinary glass will not withstand the operating temperatures.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBlower\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eIncluded, up to 144 CFM\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Powerful double-cage heat-activated blower with rheostat speed control and thermodisc auto-on. Without the blower, heat distribution from an insert relies almost entirely on radiant heat through the glass — most of the firebox is enclosed in the masonry cavity, so the blower is what gets the heat into the room.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBaffle\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eC-Cast\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eRigid aluminosilicate fiber baffle rated above 2,000 °F.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFlue connection\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e6 in (insert liner)\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eTop of the unit. Requires a continuous stainless-steel chimney liner running the full height of the masonry chimney. Liner must conform to UL 1777 (USA), CAN\/ULC-S635, or CAN\/ULC-S640 (Canada). Per manual, minimum liner height 15 feet. Sold separately.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion chamber\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e19 5\/8\" W × 13 1\/2\" D × 11 7\/8\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInside firebox dimensions per manual. Designed for east-west loading across the width of the firebox. North-south loading is not practical at this depth.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDoor opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e17 1\/4\" W × 8 3\/4\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eLoading door opening. Accommodates 18-inch logs loaded east-west.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMinimum masonry opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e21 1\/2\" H × 27 1\/2\" W × 12 7\/8\" D\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Confirm fireplace dimensions before ordering. See \"Where it can go\" for faceplate options.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eShipping weight\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e361 lb\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePlan for multi-person handling. Remove loose internal components as appropriate during installation to reduce handling weight.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCountry of origin\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMade in Canada\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufactured by Stove Builder International (SBI) in Saint-Augustin-de-Desmaures, Quebec.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhere it can go\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe Osburn 1700-I is approved only for installation inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. It is not approved for installation in factory-built (prefab) metal fireplaces, in mobile or manufactured homes, in alcoves, or as a freestanding unit. The masonry fireplace and chimney must be inspected before installation for cracks, loose mortar, creosote, blockage, or other signs of deterioration.\u003c\/p\u003e\n\n\u003ch3\u003eMinimum masonry opening\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eDimension\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHeight\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e21 1\/2\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eWidth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27 1\/2\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eDepth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e12 7\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eIf a fresh-air intake is being installed, add at least 4 inches to the width. Plan for a small installation margin above the insert to seat the liner adapter — an opening exactly at the minimum will be a tight install. Measure carefully before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eFaceplate options\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eFaceplate size\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eFinish\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eRegular (29\" × 44\")\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eBlack or Brushed Nickel\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eLarge (32\" × 50\")\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eBlack or Brushed Nickel\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eTrim color matches the faceplate finish. The cast-iron door overlay is selected separately in Black or Brushed Nickel — most buyers match both. Selected at order, not field-swappable.\u003c\/p\u003e\n\n\u003ch3\u003eClearances to combustibles\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eSurface\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eAdjacent combustible side wall\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e16\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eFaceplate to combustible side or top surround\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e9\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible mantel shelf\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible top surround projection\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePlatform \/ floor protection to ceiling\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e84\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"data-head\" style=\"margin-top: 18px;\"\u003e\n\u003cspan\u003eSurface\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMax thickness\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible side surround\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible mantel shelf projection\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e12\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eReduced clearances are not available by means of heat shields on this insert — the figures above are the binding minimums.\u003c\/p\u003e\n\n\u003ch3\u003eFloor protection\u003c\/h3\u003e\n\u003cp\u003eFloor protection requirements depend on whether the existing masonry hearth is raised 4 inches or more above the surrounding combustible floor. If the hearth is raised 4 inches or more, a non-combustible floor protector with no R-value is required and must extend at least 16 inches in front of the unit in the USA, 18 inches in Canada. If the hearth is raised less than 4 inches, a non-combustible floor protector with an R-value of at least 1.00 is required and must extend at least 22 inches in front of the unit. The manual includes a thermal-resistance lookup table for common floor protection materials (brick, cement board, ceramic tile, marble) to calculate the required R-value combination.\u003c\/p\u003e\n\n\u003ch3\u003eChimney and liner\u003c\/h3\u003e\n\u003cp\u003eThe Osburn 1700-I requires a continuous 6-inch stainless-steel chimney liner extending from the insert flue collar to the top of the chimney. The liner must conform to ULC S635 or CAN\/ULC-S640 (Canada) or UL 1777 (USA) and be rated for solid fuel. The minimum liner height is 15 feet, subject to installer verification, certification label, draft conditions, and local code. The chimney must extend at least 3 feet above the highest point of contact with the roof and at least 2 feet above any roof line or obstacle within 10 feet horizontally.\u003c\/p\u003e\n\u003cp\u003eIf the existing fireplace's throat damper is to remain, it must be locked open to clear the liner; otherwise the damper plate must be removed. A sheet-metal block-off plate (or, in Canada per CSA B365, mineral wool packing around the liner) is recommended at the throat to reduce cold-air backdraft into the room. An insulated liner (or pre-insulated liner with a wrap) improves draft and reduces creosote, and is required by code in some jurisdictions for clearance reasons.\u003c\/p\u003e\n\n\u003ch3\u003eOutside air\u003c\/h3\u003e\n\u003cp\u003eAn optional fresh-air intake kit is available for code jurisdictions requiring outside combustion air or for tight new-construction homes with mechanical ventilation. The fresh-air intake adapter installs on either the left or right side of the insert (the unused side is covered by a plate supplied in the owner's manual kit). A smoke detector and carbon monoxide detector are required in the room where the insert is installed.\u003c\/p\u003e\n\n\u003ch3\u003eCode compliance\u003c\/h3\u003e\n\u003cp\u003eCode compliance for any specific installation is determined by the local Authority Having Jurisdiction. Manufacturer listings cover what the insert is approved for; the AHJ approves what is permitted at your address. A WETT (Canada), NFI, or CSIA (USA) certified installer is strongly recommended and frequently required by code, permit, or insurance. In Canada the CSA B365 standard applies; in the USA, ANSI NFPA 211 applies. Confirm local requirements before purchasing.\u003c\/p\u003e\n\n\u003ch3\u003eCalifornia Proposition 65\u003c\/h3\u003e\n\u003cp\u003eThis product can expose you to chemicals including carbon monoxide, which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.P65warnings.ca.gov.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat's in the box, what you'll add\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003ch3\u003eShips with the insert\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOsburn 1700-I wood insert (OB01705) with welded carbon-steel firebox and arched cast-iron glazed door\u003c\/li\u003e\n\u003cli\u003eConfigured at order with required door overlay and faceplate\/trim selections — see \"Where it can go\" for the options\u003c\/li\u003e\n\u003cli\u003e144 CFM heat-activated double-cage blower assembly with rheostat speed control and thermodisc auto-on\u003c\/li\u003e\n\u003cli\u003eAsh lip\u003c\/li\u003e\n\u003cli\u003eC-Cast baffle and stainless-steel secondary-air tube assembly\u003c\/li\u003e\n\u003cli\u003eHigh-density refractory firebrick lining\u003c\/li\u003e\n\u003cli\u003eLiner fixation brackets and hardware\u003c\/li\u003e\n\u003cli\u003eOwner's manual and product documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSold separately\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e6-inch continuous stainless-steel chimney liner kit (UL 1777, CAN\/ULC-S635, or CAN\/ULC-S640) — required for installation, sized to the chimney height\u003c\/li\u003e\n\u003cli\u003eHearth extension or floor protector sized per manual specifications, with R-value of at least 1.00 if hearth is raised less than 4 inches\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch fresh-air intake kit (SBI AC01298) — for code jurisdictions requiring outside combustion air or for tight new-construction homes\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch × 4' insulated flex pipe for fresh-air intake (SBI AC02090) — HVAC type, ULC S110 or UL 181 class 0 or class 1\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch fresh-air intake register with airtight damper (SBI AC01349) — closable outside-air damper; do not close while the insert is in use\u003c\/li\u003e\n\u003cli\u003eOptional liner hook-up system (SBI AC02006) — simplifies liner-to-flue-collar connection\u003c\/li\u003e\n\u003cli\u003eOptional offset liner adapter (SBI AC01214) — for installations where the chimney throat geometry requires offset connection\u003c\/li\u003e\n\u003cli\u003eOptional rigid fire screen (SBI AC01299) — not permitted for open-door use in the United States or in Canadian provinces\/jurisdictions with particulate-emission limits; never leave the insert unattended when used with a fire screen\u003c\/li\u003e\n\u003cli\u003eOptional tempered glass hearth pad 10mm 18\" × 50\" (SBI AC02760)\u003c\/li\u003e\n\u003cli\u003ePin-type wood moisture meter — not optional in practice\u003c\/li\u003e\n\u003cli\u003eFlue thermometer — strongly recommended for insert installations since stove-top temperature isn't accessible\u003c\/li\u003e\n\u003cli\u003eInstallation by an authorized qualified technician (WETT, NFI, or CSIA certified) — required for warranty coverage and often required by code, permit, or insurance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow it actually performs\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe 65,000 BTU\/hr maximum is a peak rating, transient, achieved on dry cordwood at high loading density and short reload intervals. The figure that matters for daily life is the sustained output across a full burn cycle, which lands in the 9,800–52,200 BTU\/hr band per the CSA B415.1-10 stack-loss method. That's a notably wide range — the Osburn 1700-I delivers usable heat from very low burn rates suitable for shoulder-season heating, up through strong sustained output for cold-snap winter heating.\u003c\/p\u003e\n\n\u003cp\u003eA realistic burn cycle from a packed load of well-seasoned hardwood produces a 30–45 minute warm-up, 2 hours of strong sustained heat once the firebox and surrounding masonry come up to temperature, then a gradual decline over the next 2–3 hours with a coal bed remaining. Total useful heat from one full pack is realistically 5–6 hours, occasionally approaching the 7-hour manufacturer maximum with dense hardwood, mild weather, and a packed coal bed.\u003c\/p\u003e\n\n\u003cp\u003eThe masonry around the insert acts as a thermal mass. Once the surrounding brick or stone is up to temperature, it continues radiating heat into the room well after the active fire has died down. This is one of the underappreciated benefits of an insert versus a freestanding stove — the masonry stores and releases heat on its own cycle. The first hour from a cold start is the slowest because that mass has to come up to temperature; once it's hot, response time is faster.\u003c\/p\u003e\n\n\u003cp\u003eThe 144 CFM heat-activated blower is what gets the heat into the room. Because most of the insert's firebox sits inside the masonry cavity, the radiant heat that would otherwise reach the room from a freestanding stove is partly absorbed by the surrounding brick. The convection jacket around the firebox captures that heat and the blower pushes it out into the room. The 144 CFM rating is notably stronger than the 90 CFM blowers used on smaller inserts in the line — more aggressive heat distribution and more effective at moving heat out of the masonry cavity.\u003c\/p\u003e\n\n\u003cp\u003eAllow the insert to reach operating temperature (approximately one hour from a cold start) before turning the blower to high speed. Per the manual, turning the blower on too early during start-up pulls heat away from the firebox and slows the build-up to clean combustion.\u003c\/p\u003e\n\n\u003cp\u003eAir-wash glass stays largely clear during proper hot burns at moderate-to-high air settings. At low burn rates with marginally seasoned wood, the glass will tar. This is universal to non-catalytic inserts, not specific to Osburn.\u003c\/p\u003e\n\n\u003cp\u003ePower-failure operation: the insert continues to burn safely without electricity — only the blower stops. Heat distribution drops noticeably without the blower because the masonry cavity absorbs most of the firebox radiation. Plan accordingly if you're buying this insert specifically as a power-outage heat source.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eTrade-offs to know\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eInsert, not a freestanding stove.\u003c\/strong\u003e The Osburn 1700-I requires an existing masonry fireplace plus a full stainless-steel chimney liner — there's no other approved installation path. Buyers without a masonry fireplace should look at the Osburn 1700 freestanding stove (same firebox platform, no masonry requirement) instead.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMedium firebox platform.\u003c\/strong\u003e The Osburn 1700-I is the middle size in the Osburn insert line — bigger than the Osburn 950, smaller than the Osburn Matrix Insert and Osburn 3500 Insert. For buyers in the 1,200–1,600 sq ft range it's the right fit; outside that range, step up or down.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSame chassis as the Enerzone twin.\u003c\/strong\u003e The 1700-I and the Enerzone Solution 1.7-I share the same SBI medium-insert chassis. Same firebox, same blower, same baffle, same burn time, same 68% HHV efficiency, same 2.4 g\/hr emissions, same warranty schedule. The differences are aesthetic and brand-tier: the Osburn adds the configurable cast-iron door overlay (Black or Brushed Nickel) on top of the faceplate\/trim choices and is positioned in the premium Osburn tier. Choose the Osburn for the door-overlay configurability and the premium positioning; choose the Enerzone for the silver-grooved styling at the Enerzone price point.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePowerful blower, audible blower.\u003c\/strong\u003e The 144 CFM blower delivers strong heat distribution but is more audible than the 90 CFM blowers used on smaller inserts. The rheostat lets you dial speed down for quieter operation when the room is up to temperature; high speed is most useful during the active heat-output phase of the burn cycle.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e7-hour maximum burn is medium-class, not long-burn.\u003c\/strong\u003e A 1.86 ft³ non-cat insert gives you meaningful primary-heat capability across 1,200–1,600 sq ft, with realistic 5–6 hour burn cycles. If you want true 8+ hour overnight burns, step up to the Osburn Matrix Insert or to a catalytic insert with a real low-output mode.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe 1,800 sq ft figure is aspirational.\u003c\/strong\u003e The most consistent owner regret across medium inserts is buying for the high end of the manufacturer's heating range. If you need to reliably heat more than ~1,500 sq ft as primary winter heat in a cold climate or older home, step up a firebox size.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe blower is essential, not optional.\u003c\/strong\u003e Unlike a freestanding stove where the blower meaningfully improves heat distribution, on an insert the blower is what gets the heat into the room at all. Most of the firebox sits inside the masonry cavity, which absorbs radiant heat. The insert will run safely without the blower (useful in a power outage), but day-to-day heat into the room depends on the blower being on and working.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eExisting fireplace dimensions are non-negotiable.\u003c\/strong\u003e The masonry opening must meet the manual's minimum dimensions (21 1\/2\" H × 27 1\/2\" W × 12 7\/8\" D). The Large faceplate can cover a larger opening, but cannot compensate for an undersized one. Measure before purchase.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eConfiguration is a one-time decision.\u003c\/strong\u003e Door overlay color, faceplate size, and trim finish are all configured at order, not field-swappable. The combinations let the insert fit many room layouts and aesthetics, but choose the configuration that matches the fireplace you're installing into — measure the opening and confirm the look before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e2.4 g\/hr emissions is mid-pack.\u003c\/strong\u003e The Osburn 1700-I is within the EPA 2020 cordwood limit (2.5 g\/hr) but not class-leading on emissions. Buyers specifically wanting lower emissions for an EPA non-attainment county should compare against cross-shops or larger fireboxes with lower published rates.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood quality is not negotiable.\u003c\/strong\u003e The most common \"the insert doesn't heat\" complaint comes from owners running marginally seasoned wood. Secondary combustion works best with dry, properly seasoned fuel, ideally around 15–20% moisture. A pin-type moisture meter is the single best accessory for this insert.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eOperating reality\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eFirst burns.\u003c\/strong\u003e The first few fires cure the high-temperature paint and condition the internal components. Burn two or three small fires first, then build bigger, hotter fires until the paint smell is gone. The smell can be strong; ventilate the room well and avoid prolonged exposure during cure-in.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLighting.\u003c\/strong\u003e Per the manual's EPA loading procedure, the recommended method is a bottom-up build: split a start-up fuel log into 6 pieces, criss-cross them at 45 degrees on the firebrick in three rows from smallest to biggest, criss-cross 12–15 kindling pieces on top in three rows, place newspaper on top, and light. Leave the door slightly ajar (about 1 minute to 1:30) until the kindling is fully engaged, then close and latch the door with the air control fully open.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAir control.\u003c\/strong\u003e Single-lever, located underneath the ash shelf. Pull the handle completely toward you to open (HIGH burn rate). Push completely to close (LOW burn rate). Full open at light-off; gradually closed only after the load is fully engaged and stable secondary flames are established. The manual specifies closing the primary air control by small increments (about 1\/16 inch at a time) between 4 and 15 minutes after a reload — too fast and the fire smolders.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eReload cadence.\u003c\/strong\u003e 2–3 hours between reloads in active heating use; up to 6 hours for a final overnight pack with the air shut hard. Per the manual's loading procedure, rake remaining charcoal toward the front of the firebox before loading. Place three logs east-west on the coal bed leaving about 1–2 inches of air space between the rear firebrick and the first piece, then two more logs slightly angled on top. Open the air for a minute or two before opening the door, open the door slowly to avoid smoke rollout, load, close the door, and run the air open until the load is fully engaged before reducing gradually. Do not elevate the fire by using a grate.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBurn in cycles, not single-log feeds.\u003c\/strong\u003e Do not attempt to produce steady heat output by placing a single log on the fire at regular intervals. Always place at least three (preferably more) pieces on the fire at a time so the heat radiated from one piece helps ignite the pieces next to it. Each load should provide several hours of heating.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAsh management.\u003c\/strong\u003e Empty ash every 2–3 days during full-time heating. The best time to remove ash is in the morning after an overnight fire when the insert is relatively cool but there is still some chimney draft to draw ash dust into the insert rather than into the room. Always dispose of ash in a tightly covered metal container on a non-combustible surface, well away from combustible materials — ash retains hot embers for days. Never store ashes indoors, in a non-metallic container, or on a wooden deck.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGlass cleaning.\u003c\/strong\u003e Damp newspaper dipped in cold ash, or a dedicated ceramic-glass cleaner. Daily wipe during low-burn weather; weekly during high-burn. Black streaks at the lower edge mean wet wood; black uniformly across the glass means burns are running too cool. Brown stains at the lower corners mean smoky combustion. Do not clean the glass when the insert is hot, and do not strike or slam the glass door shut.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoor and glass gaskets.\u003c\/strong\u003e Per the manual, the door gasket needs replacement when the paper-strip test fails: close the door on a strip of paper and try to pull it out; firm resistance means the gasket is sealing, easy pull means it's time to replace. Test all the way around the door. The latch mechanism is adjustable — remove the split pin with pliers and turn the handle one counterclockwise turn to increase pressure. Plan on every 3–5 seasons in regular use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoor alignment.\u003c\/strong\u003e Per the manual, the door hinges are adjustable. If the door drifts out of alignment over time, loosen the pressure screws on the upper and lower hinges with a 3\/32\" Allen key, turn the adjustable hinge rods with a flat screwdriver to bring the door back into square, then retighten the hinge pressure screws. Routine adjustment, not a warranty issue.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAnnual chimney sweep.\u003c\/strong\u003e Per the manual, the chimney liner should be cleaned and inspected at least once each year. Inspect every two months during the heating season until you know your creosote-formation rate; monthly is safer for new burners. If buildup reaches 1\/8 inch, sweep immediately. The baffle and secondary tubes can be removed for sweep access. Insert installations make sweeping more involved than freestanding stoves — many owners hire a CSIA-certified sweep rather than doing it themselves.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood seasoning.\u003c\/strong\u003e Hardwood needs 12–24 months split, stacked off the ground, top-covered, with sun and wind on the sides. Don't trust supplier \"seasoned\" claims — use a pin-type moisture meter, split a piece in half, measure the fresh face. Manual target: 15–20% moisture. Wood above 25% will smolder, soot the glass, line the chimney with creosote, and undercut every published efficiency and emissions number on this page.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlower maintenance.\u003c\/strong\u003e Keep the blower intake and fins free of dust. Vacuum dust accumulation annually. Do not oil the blower unless the blower manual specifically calls for lubrication. Replacement blowers and related service parts are available through Osburn\/SBI dealers and parts channels if needed years out.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat never to burn.\u003c\/strong\u003e Per the manual and EPA fuel rules: no coal, garbage, yard waste, materials containing rubber or plastic, waste petroleum products, paint or paint thinners, asphalt products, painted or pressure-treated wood, railroad ties, manure or animal remains, plywood, particle board, paper products, asbestos materials, construction or demolition debris, salt-water driftwood, or unseasoned wood. This does not prohibit normal fire starters made from paper, cardboard, sawdust, wax, or similar substances when used only to start a fire. Burning prohibited materials destroys the firebox, voids the warranty, and releases toxic compounds into your home and the chimney.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWarranty and service\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe Osburn limited lifetime warranty applies to the original retail purchaser only and is non-transferable. The warranty applies to normal residential use only. Proof of purchase (dated bill of sale), model name, and serial number are required for any warranty claim. Online registration is recommended at osburn-mfg.com but not required if a dated invoice is retained.\u003c\/p\u003e\n\n\u003ch3\u003eCoverage by component\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eComponent\u003c\/span\u003e\u003cspan\u003eParts\u003c\/span\u003e\u003cspan\u003eLabor\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustion chamber welds, cast-iron door frame\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCeramic glass, plating manufacturing defects, convector air-mate\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eSurrounds, heat shields, trims, C-Cast baffle, secondary air tubes\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e7 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHandle assembly, glass retainers, air control mechanism\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e3 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eRemovable carbon-steel firebox components\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eBlower, heat sensors, switches, rheostat, wiring, electronics\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e2 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePaint (peeling), gaskets, insulation, ceramic fiber blankets, and other options\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eReplacement parts under warranty\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e90 d\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eA one-time replacement limit applies to all parts with lifetime coverage. Warranty is void if the unit is used to burn anything other than seasoned cordwood, or if it is not operated according to the owner's manual. Damage caused by misuse, improper installation, lack of maintenance, overfiring, downdrafts, venting problems, or under-estimated heating area is not covered. Improper installation by anyone other than an authorized qualified technician voids the warranty.\u003c\/p\u003e\n\n\u003cp\u003eWarranty claims are made through your Osburn dealer and remain subject to SBI\/Osburn inspection, approval, and the current written warranty. Kaminos is the retailer for this insert and supports buyers through purchase; final warranty approval rests with SBI as the manufacturer.\u003c\/p\u003e\n\n\u003cp class=\"warranty-note\"\u003eOsburn may require photos or returned parts to support a claim; repair work covered by warranty requires prior manufacturer approval.\u003c\/p\u003e\n\n\u003cp class=\"warranty-note\"\u003eCoverage details can change by component and warranty revision; the current Osburn warranty controls.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCompare with\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eEnerzone Solution 1.7-I Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eEnerzone-branded twin on the same SBI medium-insert chassis. Mechanically identical — same 1.86 ft³ firebox, same 65,000 BTU\/hr maximum, same 18-inch log capacity, same 144 CFM blower, same 68% HHV efficiency, same 2.4 g\/hr emissions, same 7-hour burn time. The difference is aesthetic and brand tier: the Osburn adds the configurable cast-iron door overlay (Black or Brushed Nickel) on top of the faceplate\/trim choices; the Enerzone has the silver-grooved styling without the door-overlay configurability. Choose the Osburn 1700-I for the door-overlay customization and the premium Osburn positioning; choose the Enerzone for the silver-grooved styling at the Enerzone price point.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eOsburn 1700 Wood Stove\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eFreestanding equivalent on the same firebox platform — same 1.86 ft³ firebox, same 65,000 BTU\/hr maximum output, same 18-inch log capacity. Osburn brand finish with the same door overlay configuration in Black or Brushed Nickel. Choose the Osburn 1700 if you don't have an existing masonry fireplace, or if you want a freestanding stove for visual presence and full radiant heat in the room; choose the Osburn 1700-I if you have a masonry fireplace to convert.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eOsburn Matrix Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eStep-up sibling in the Osburn insert line. Larger 2.4 ft³ firebox, 75,000 BTU\/hr maximum, 500–2,100 sq ft heating range, 20-inch log capacity, 8-hour maximum burn. Contemporary cast-iron flush-mount aesthetic rather than the 1700-I's configurable door overlay. Choose the Matrix Insert if you need to heat over 1,800 sq ft, want 20-inch logs, or want longer burn cycles; choose the 1700-I for medium spaces and a smaller masonry opening.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003ePacific Energy Vista Insert LE\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eCross-brand competitor in the medium-small insert class. 1.6 ft³ firebox, 56,000 BTU\/hr maximum, 1.9 g\/hr emissions, 72% HHV efficiency, 17-inch maximum log. Pacific Energy's reliable single-lever non-cat technology, premium build, higher price. Slightly smaller firebox than the 1700-I but in the same general size class. Buyers cross-shopping for medium masonry inserts often compare these two.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cp class=\"pull\"\u003eThe Osburn 1700-I is the medium-sized wood insert in the Osburn line — the same SBI chassis as the Enerzone Solution 1.7-I, distinguished by the configurable cast-iron door overlay in Black or Brushed Nickel and the premium Osburn positioning. Measure the opening, install it right, burn good wood, and it carries you through winter.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Osburn","offers":[{"title":"Black \/ Black","offer_id":49275867234497,"sku":"OB01705-OA10249+OA10116+OA10128","price":3189.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Brushed Nickel","offer_id":49275867300033,"sku":"OB01705+OA10249+OA10116+OA10129","price":3189.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Large Black","offer_id":49275867627713,"sku":"OB01705+OA10249+OA10117+OA10128","price":3249.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Large Brushed Nickel","offer_id":49275867693249,"sku":"OB01705+OA10249+OA10117+OA10129","price":3249.0,"currency_code":"USD","in_stock":true},{"title":"Brushed Nickel \/ Black","offer_id":49275867267265,"sku":"OB01705+OA10250+OA10116+OA10122","price":3354.0,"currency_code":"USD","in_stock":true},{"title":"Brushed Nickel \/ Brushed Nickel","offer_id":49275867332801,"sku":"OB01705+OA10250+OA10116+OA10123","price":3354.0,"currency_code":"USD","in_stock":true},{"title":"Brushed Nickel \/ Large Black","offer_id":49275867660481,"sku":"OB01705+OA10250+OA10117+OA10128","price":3414.0,"currency_code":"USD","in_stock":true},{"title":"Brushed Nickel \/ Large Brushed Nickel","offer_id":49275867726017,"sku":"OB01705+OA10250+OA10117+OA10129","price":3414.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/osburn-1700-i-wood-insert-front-ob01705.webp?v=1748290582"},{"product_id":"osburn-matrix-1900-wood-insert","title":"Osburn Matrix 1900 Wood Insert","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #231F20; line-height: 1.55; width: 100%; max-width: 100%; box-sizing: border-box; margin: 0; padding: 0; font-size: 16px; overflow-wrap: break-word; word-wrap: break-word; word-break: normal;\"\u003e\n\n\u003cstyle\u003e\n  .km-desc, .km-desc * { box-sizing: border-box; max-width: 100%; }\n  .km-desc { width: 100%; }\n  .km-desc p { margin: 0 0 14px; }\n  .km-desc h3 { font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px; font-weight: 600; color: #9B774D; margin: 22px 0 10px; }\n  .km-desc .spec-list { margin: 12px 0 0; }\n  .km-desc .spec-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .spec-row:first-child { border-top: 1px solid rgba(75,72,75,0.35); padding-top: 14px; }\n  .km-desc .spec-label { font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px; font-weight: 600; color: #4B484B; margin-bottom: 6px; }\n  .km-desc .spec-value { font-weight: 600; font-size: 15px; color: #231F20; margin-bottom: 6px; line-height: 1.35; }\n  .km-desc .spec-meaning { color: #4B484B; font-size: 13px; line-height: 1.55; }\n  @media (min-width: 720px) {\n    .km-desc .spec-row { display: grid; grid-template-columns: 38% 30% 1fr; gap: 16px; align-items: start; padding: 12px 0; }\n    .km-desc .spec-label { margin-bottom: 0; align-self: center; }\n    .km-desc .spec-value { margin-bottom: 0; font-size: 14px; align-self: center; }\n    .km-desc .spec-meaning { font-size: 13px; }\n    .km-desc .spec-row:first-child { padding-top: 12px; }\n  }\n  .km-desc .data-row { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; padding: 12px 0; border-bottom: 1px solid rgba(75,72,75,0.12); align-items: baseline; font-size: 13px; }\n  .km-desc .data-head + .data-row { border-top: 1px solid rgba(75,72,75,0.35); }\n  .km-desc .data-row .data-label { color: #4B484B; line-height: 1.4; }\n  .km-desc .data-row .data-val { font-weight: 600; color: #231F20; text-align: right; min-width: 56px; }\n  .km-desc .data-head { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; padding-bottom: 8px; font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px; font-weight: 600; color: #4B484B; }\n  .km-desc .data-head span:nth-child(2), .km-desc .data-head span:nth-child(3) { text-align: right; min-width: 56px; }\n  .km-desc ul { list-style: none; padding: 0; margin: 10px 0 14px; }\n  .km-desc ul li { padding: 4px 0 4px 18px; position: relative; line-height: 1.55; }\n  .km-desc ul li:before { content: \"—\"; position: absolute; left: 0; color: #9B774D; font-weight: 500; }\n  .km-desc .compare-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .compare-row:last-child { border-bottom: 0; }\n  .km-desc .compare-name { font-weight: 600; color: #231F20; display: inline-block; padding-bottom: 1px; }\n  .km-desc .compare-orient { color: #4B484B; margin-top: 4px; font-size: 13px; line-height: 1.5; }\n  .km-desc .pull { font-style: italic; font-size: clamp(16px, 4.2vw, 22px); line-height: 1.4; color: #231F20; border-left: 2px solid #9B774D; padding: 0 0 0 16px; margin: 32px 0 16px; }\n  .km-desc .lede { font-size: clamp(16px, 4vw, 22px); line-height: 1.4; letter-spacing: -0.2px; font-weight: 400; color: #231F20; margin: 0 0 24px; }\n  .km-desc .warranty-note { font-size: 12px; color: #4B484B; font-style: italic; margin-top: 14px; }\n  .km-desc details { border-top: 1px solid rgba(75,72,75,0.18); margin: 0; padding: 0; }\n  .km-desc details:last-of-type { border-bottom: 1px solid rgba(75,72,75,0.18); }\n  .km-desc details \u003e summary { list-style: none; cursor: pointer; padding: 18px 32px 18px 0; position: relative; font-size: clamp(16px, 4.2vw, 20px); line-height: 1.3; font-weight: 500; color: #231F20; letter-spacing: -0.2px; }\n  .km-desc details \u003e summary::-webkit-details-marker { display: none; }\n  .km-desc details \u003e summary::after { content: \"+\"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-size: 22px; font-weight: 300; color: #9B774D; line-height: 1; }\n  .km-desc details[open] \u003e summary::after { content: \"−\"; }\n  .km-desc details \u003e summary:focus-visible { outline: 2px solid #9B774D; outline-offset: 4px; }\n  .km-desc details \u003e .acc-body { padding: 0 0 28px 0; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"km-desc\"\u003e\n\n\u003cp class=\"lede\"\u003eA 1.1 ft³ non-catalytic small wood insert built around a magnificent cast-iron decorative faceplate with patterned upper louver and framing columns. EPA 2020 cordwood certified at 1.5 g\/hr particulate emissions with 75% HHV efficiency, 45,000 BTU\/hr maximum output, 17-inch maximum east-west log capacity, up to 7-hour maximum burn time, and a 90 CFM heat-activated blower included as standard. Configurable Black or Brushed Nickel cast-iron door overlay. The Osburn-styled sibling of the Enerzone Destination 1.9.\u003c\/p\u003e\n\n\u003cdetails open\u003e\n\u003csummary\u003eWho this is for\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003ch3\u003eRight buyer\u003c\/h3\u003e\n\u003cp\u003eOwners of an existing masonry fireplace who want real heat output instead of a decorative open fire, in a single main-floor room, an open-plan small home, a finished basement family room, or a cottage of roughly 500–900 sq ft, with reasonable insulation and access to seasoned hardwood at 15–20% moisture content.\u003c\/p\u003e\n\n\u003cp\u003eSuited to homeowners whose existing masonry opening is on the smaller side — the Matrix 1900's tapered top and sides plus 15 1\/2\" minimum hearth depth let it fit openings that exclude wider or deeper inserts. The cast-iron decorative faceplate, patterned upper louver, framing columns, and recessed flush-mount blower with hidden air-control handle deliver a more finished face than most inserts in this category.\u003c\/p\u003e\n\n\u003cp\u003eBuyers who prefer the Osburn aesthetic — premium cast-iron detailing, Black or Brushed Nickel door overlay configurability — over the plainer Enerzone Destination 1.9, which uses the same chassis at a lower price.\u003c\/p\u003e\n\n\u003ch3\u003eWrong buyer\u003c\/h3\u003e\n\u003cp\u003eNot for buyers who want set-and-forget heating. Wood-burning inserts require active operation: lighting, monitoring, closing the air at the right moment, deciding when to reload. The 1.1 ft³ firebox can leave usable coals after a long burn, but do not expect steady, high output through an entire night.\u003c\/p\u003e\n\n\u003cp\u003eNot for buyers expecting 8–14+ hour overnight burns. A small non-catalytic firebox gives you 3–4 hours of useful heat from a packed load of dense hardwood, occasionally up to 5 in mild weather. For longer burns, a catalytic or hybrid insert is the right tool.\u003c\/p\u003e\n\n\u003cp\u003eNot for whole-house primary heat in larger or older homes. The manufacturer's stated 1,200 sq ft upper range is achievable only in well-insulated, open-plan, moderate-climate conditions; in real-world use this is a one-room or one-zone insert, not a whole-house heater.\u003c\/p\u003e\n\n\u003cp\u003eNot for prefab metal fireplaces — those need a different appliance entirely. Not approved for mobile-home or alcove installation.\u003c\/p\u003e\n\n\u003cp\u003eNot for buyers without a code-compliant masonry fireplace and chimney. The Matrix 1900 requires a continuous 6-inch stainless-steel chimney liner running the full height; that liner and its installation are not included in the appliance price.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eAt a glance\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cdiv class=\"spec-list\"\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion technology\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNon-catalytic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eSecondary-air tubes reignite smoke gases. No catalyst to replace; one air-control lever; simpler operation than a cat insert but shorter low-and-slow burn times.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eInstallation type\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMasonry insert\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInstalls inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. Not approved for factory-built fireplaces, mobile homes, alcoves, or freestanding installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFirebox volume\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e1.1 ft³ overall \/ 1.03 ft³ EPA\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Small firebox sized for one room or one zone, not whole-house heat. The overall figure includes a buffer zone above the EPA loading line; the 1.03 ft³ figure is the usable loading volume used during EPA emissions certification.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum heat output\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e45,000 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePeak output on dry cordwood, transient. Sustained output across a burn cycle is substantially lower — the manufacturer's tested operating band lands well below this peak.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eTested output range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e8,471–31,700 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer CSA B415.1-10 stack-loss method. The realistic operating band buyers should plan around — from a steady low burn at the bottom of the range up through a strong high-output cycle in the upper end.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eHeating range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e250–1,200 sq ft\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer's stated range. Real-world comfort sizing for primary heat is roughly 500–900 sq ft in moderate climates and lower in cold climates or older homes — depends on insulation, layout, climate, ceiling height, fuel quality, and installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eAverage efficiency\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e75% HHV \/ 80% LHV\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003e82% optimum overall efficiency at low burn rate; 78% optimum heat transfer efficiency. HHV is the federal standard. Government incentives may apply by jurisdiction and installation date.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eParticulate emissions\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e1.5 g\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manufacturer's published spec table. EPA 2020 limits are 2.0 g\/hr crib-wood or 2.5 g\/hr cordwood. The Matrix 1900 is well below the federal cordwood limit.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum burn time\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUp to 7 hours\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer maximum at the lowest air setting. Useful heat through a burn cycle is realistically 3–4 hours, occasionally up to 5 in mild weather.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eRecommended log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e16 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Most firewood suppliers cut to this length.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e17 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eLimited margin over the 16-inch standard supply cut. Verify your firewood supply before buying. Logs load across the width of the firebox, sides visible from the door.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eConstruction\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eCarbon steel, cast-iron faceplate and door\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eWelded carbon-steel firebox with a cast-iron decorative faceplate and a glazed cast-iron door. 3\/16\" body, 3\/16\" top. Lifetime warranty on the combustion-chamber welds.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDoor overlay\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eBlack or Brushed Nickel\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eCast-iron door overlay across the front of the door. Configurable at order — one overlay is required to complete the unit. The signature Osburn finish detail that distinguishes the Matrix 1900 from the plainer Enerzone Destination 1.9.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eGlass\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e18\" × 8 1\/8\", ceramic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eArched ceramic glass with air-wash, 5\/32\" (4 mm) thick. Replacement glass must be SCHOTT ceramic with the same specification — tempered or ordinary glass will not withstand the operating temperatures.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBlower\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eIncluded, 90 CFM\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePremium-quality variable-speed tangential blower with rheostat speed control and thermodisc auto-on. Flush-mounted, recessed behind the lower louver so it disappears into the faceplate detailing.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBaffle\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eC-Cast\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eRigid aluminosilicate fiber baffle rated above 2,000 °F.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFlue connection\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e6 in (insert liner)\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eTop of the unit. Requires a continuous stainless-steel chimney liner running the full height of the masonry chimney. Liner must conform to UL 1777 (USA), CAN\/ULC-S635, or CAN\/ULC-S640 (Canada). Per manual, minimum chimney height 12 feet. Sold separately.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion chamber\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e16 3\/4\" W × 12 3\/8\" D × 8 7\/8\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInside firebox dimensions per manufacturer spec. Designed for east-west loading across the width of the firebox. The deep bottom of the combustion chamber allows ash to accumulate and reduces cleanout frequency.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDoor opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e18 1\/4\" W × 7 7\/8\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eHorizontal loading door opening. Accommodates 17-inch logs loaded east-west.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eOverall dimensions\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e36\" W × 21\" D × 23 7\/8\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eOverall appliance dimensions including the cast-iron decorative faceplate.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMinimum masonry opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e19\" H × 25\" W × 15 1\/2\" D\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Smaller masonry opening requirement than mid- or large-size inserts in this line — the Matrix 1900 fits hearths that won't take a larger insert. Measure carefully before ordering.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eShipping weight\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e332 lb\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePlan for two-person handling minimum. Strip removable components as appropriate during installation to reduce handling weight.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMobile home approved\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNo\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eNot certified for mobile-home installation under any configuration.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCountry of origin\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMade in Canada\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufactured by Stove Builder International (SBI) in Saint-Augustin-de-Desmaures, Quebec.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhere it can go\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe Matrix 1900 is approved only for installation inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. It is not approved for installation in factory-built (prefab) metal fireplaces, in mobile or manufactured homes, in alcoves, or as a freestanding unit. The masonry fireplace and chimney must be inspected before installation for cracks, loose mortar, creosote, blockage, or other signs of deterioration.\u003c\/p\u003e\n\n\u003ch3\u003eMinimum masonry opening\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eDimension\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHeight\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e19\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eWidth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e25\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eDepth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e15 1\/2\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eIf a fresh-air intake is being installed, add at least 4 inches to the minimum width. Plan for working room above the insert to seat the liner adapter and route the offset elbow — an opening exactly at the minimum will be a tight install. Borderline openings frequently require removal of the masonry damper assembly and a stainless offset elbow between the insert flue collar and the liner.\u003c\/p\u003e\n\n\u003ch3\u003eFaceplate options\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eConfiguration\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eSize\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eStandard faceplate (included)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e23 7\/8\" × 36\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCuttable faceplate (optional, SBI AC02082)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e32\" × 44\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eThe standard cast-iron decorative faceplate covers most masonry openings. For larger openings, the optional 18-gauge cuttable faceplate extends the cover area — the edges can be trimmed to contour an arched fireplace or to minimize visible flashing. The door overlay (Black or Brushed Nickel) is configured at order — one overlay is required to complete the unit.\u003c\/p\u003e\n\n\u003ch3\u003eClearances to combustibles\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eSurface\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eAdjacent combustible side wall\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e16\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eFaceplate to combustible side mantel\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eFaceplate to combustible top mantel\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e34\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eMantel shelf to base of fireplace\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e34\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePlatform \/ floor protection to ceiling\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e72\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eThe certification label on the back of the insert always overrides clearance figures published elsewhere. Reduced clearances are not available by means of heat shields on this insert — the figures above are the binding minimums.\u003c\/p\u003e\n\n\u003ch3\u003eFloor protection\u003c\/h3\u003e\n\u003cp\u003eThe hearth extension must be a continuous non-combustible surface in front of the door opening. Floor protection requirements depend on whether the existing masonry hearth is raised above the surrounding combustible floor and whether it extends sufficiently in front of the appliance. Tile alone is not sufficient — the manual requires a continuous non-combustible sheet beneath any tile installation. If the existing masonry hearth extension is long enough and raised more than 5 inches above the combustible floor, standard non-combustible ember protection may be sufficient. If the masonry hearth is level with, or only slightly raised above, the surrounding combustible floor, an R-value floor protector may be required per the manual's floor-protection worksheet. Final hearth protection must be calculated from the manual and approved by the installer\/AHJ.\u003c\/p\u003e\n\n\u003ch3\u003eChimney and liner\u003c\/h3\u003e\n\u003cp\u003eThe Matrix 1900 requires a continuous 6-inch stainless-steel chimney liner extending from the insert flue collar to the top of the chimney. The liner must conform to ULC S635, CAN\/ULC-S640 (Canada) or UL 1777 (USA) and be rated for solid fuel. The minimum liner height is 12 feet, subject to installer verification, certification label, draft conditions, and local code. The chimney must extend at least 3 feet above the highest point of contact with the roof and at least 2 feet above any roof line or obstacle within 10 feet horizontally.\u003c\/p\u003e\n\n\u003cp\u003eThe Matrix 1900 performs best with a 6-inch stainless-steel chimney liner. In the USA, use a 6-inch liner listed to UL 1777. In Canada only, connection to a chimney liner of at least 5 inches may be permitted if it properly vents combustion gases, the total masonry chimney height is greater than 20 feet, and the application is verified and authorized by a qualified installer. The insert is not approved for a positive flue connection to clay tile — a continuous stainless liner is required.\u003c\/p\u003e\n\n\u003cp\u003eIf the existing fireplace's throat damper is to remain, it must be locked open to clear the liner; otherwise the damper plate must be removed. A sheet-metal block-off plate sealed at the damper level (or, in Canada per CSA B365, mineral wool packing around the liner) is recommended at the throat to reduce cold-air backdraft and to allow the insert to deliver rated performance — without it, jacket-recovered heat is lost into the smoke chamber. An insulated liner (or pre-insulated liner with a wrap) improves draft and reduces creosote, and is required by code in some jurisdictions for clearance reasons.\u003c\/p\u003e\n\n\u003ch3\u003eOutside air\u003c\/h3\u003e\n\u003cp\u003eAn optional 5-inch fresh-air intake kit is available for code jurisdictions requiring outside combustion air or for tight new-construction homes with mechanical ventilation. In conventional homes the manual identifies room air as the safest and most reliable supply for combustion; almost all houses have enough natural leakage to provide what the insert needs. A smoke detector and carbon monoxide detector are required in the room where the insert is installed.\u003c\/p\u003e\n\n\u003ch3\u003eCode compliance\u003c\/h3\u003e\n\u003cp\u003eCode compliance for any specific installation is determined by the local Authority Having Jurisdiction. Manufacturer listings cover what the insert is approved for; the AHJ approves what is permitted at your address. A WETT (Canada), NFI, or CSIA (USA) certified installer is strongly recommended and frequently required by code, permit, or insurance. In Canada the CSA B365 standard applies; in the USA, ANSI NFPA 211 applies. Confirm local requirements before purchasing — particularly in EPA non-attainment counties and in HOA jurisdictions where new wood-burning installs may be restricted.\u003c\/p\u003e\n\n\u003ch3\u003eCalifornia Proposition 65\u003c\/h3\u003e\n\u003cp\u003eThis product can expose you to chemicals including carbon monoxide, which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.P65warnings.ca.gov.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat's in the box, what you'll add\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003ch3\u003eShips with the insert\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOsburn Matrix 1900 wood insert (OB01900) with welded carbon-steel firebox and cast-iron glazed door\u003c\/li\u003e\n\u003cli\u003eCast-iron decorative faceplate with patterned upper louver and framing columns (23 7\/8\" × 36\")\u003c\/li\u003e\n\u003cli\u003eConfigured at order with required door overlay selection — see \"Where it can go\" for the options\u003c\/li\u003e\n\u003cli\u003e90 CFM premium-quality flush-mounted variable-speed tangential blower with rheostat speed control and thermodisc auto-on\u003c\/li\u003e\n\u003cli\u003eC-Cast baffle and stainless-steel secondary-air tube assembly\u003c\/li\u003e\n\u003cli\u003eMoulded refractory bricks lining\u003c\/li\u003e\n\u003cli\u003eRemovable wood-grip air-control handle\u003c\/li\u003e\n\u003cli\u003eLiner fixation brackets and hardware\u003c\/li\u003e\n\u003cli\u003eOwner's manual and product documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSold separately\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e6-inch continuous stainless-steel chimney liner kit (UL 1777, CAN\/ULC-S635, or CAN\/ULC-S640) — required for installation, sized to the chimney height\u003c\/li\u003e\n\u003cli\u003eHearth extension or floor protector sized per manual specifications, with continuous non-combustible sheet beneath any tile\u003c\/li\u003e\n\u003cli\u003eSheet-metal block-off plate, high-temp silicone, and mineral wool insulation — effectively required in practice for the insert to deliver rated performance\u003c\/li\u003e\n\u003cli\u003eStainless offset elbow at the insert collar (15° or 30°) — needed on most installs where the masonry flue is offset from the insert\u003c\/li\u003e\n\u003cli\u003eInsulation wrap for the liner (or a pre-insulated liner) — strongly recommended for all installs, code-required in some\u003c\/li\u003e\n\u003cli\u003eOptional 32\" × 44\" cuttable faceplate, 18 GA (SBI AC02082) — for masonry openings larger than the standard faceplate covers\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch fresh-air intake kit (SBI AC01298) — for code jurisdictions requiring outside combustion air or for tight new-construction homes\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch × 4' insulated flex pipe for fresh-air intake (SBI AC02090) — HVAC type, ULC S110 or UL 181 class 0 or class 1\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch fresh-air intake register with airtight damper (SBI AC01349) — do not close while in use\u003c\/li\u003e\n\u003cli\u003eOptional rigid firescreen (SBI AC01213) — for occasional attended fire viewing only where permitted by local code and only when used exactly as instructed in the fire screen manual; never leave the insert unattended when used with a fire screen\u003c\/li\u003e\n\u003cli\u003eOptional liner hook-up system (SBI AC02006) — simplifies liner-to-flue-collar connection\u003c\/li\u003e\n\u003cli\u003eOptional offset liner adapter (SBI AC01214) — for installations where the chimney throat geometry requires offset connection\u003c\/li\u003e\n\u003cli\u003eOptional tempered glass hearth pad 10mm 18\" × 50\" (SBI AC02760)\u003c\/li\u003e\n\u003cli\u003ePin-type wood moisture meter — not optional in practice\u003c\/li\u003e\n\u003cli\u003eFlue thermometer — strongly recommended for insert installations since stove-top temperature isn't accessible\u003c\/li\u003e\n\u003cli\u003eInstallation by an authorized qualified technician (WETT, NFI, or CSIA certified) — required for warranty coverage and often required by code, permit, or insurance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow it actually performs\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe 45,000 BTU\/hr maximum is a peak rating, transient, achieved on dry cordwood with the air control fully open in the first hour or so of a high-burn cycle. It is real, but it is a peak rating, not the average output across a full burn cycle of normal operation. The figure that matters for daily life is the sustained output across a full burn cycle, which lands in the 8,471–31,700 BTU\/hr band per the CSA B415.1-10 stack-loss method — a wide range covering shoulder-season heating on the low end and strong sustained output for cold-snap heating on the high end.\u003c\/p\u003e\n\n\u003cp\u003eA realistic operating day in a well-insulated 600–800 sq ft open-plan room: morning reload on warm coals produces a fast 60-minute warm-up and 2–3 hours of strong output; mid-afternoon reload sustains heat through evening; a final pack at bedtime gives 3–4 hours of useful heat with the air shut down, leaving coals by morning. With seasoned oak, maple, hickory, or beech, expect 3–4 hours of useful heat per packed load; with birch, pine, or softer wood, 2–3.\u003c\/p\u003e\n\n\u003cp\u003eThe masonry around the insert acts as a thermal mass. Once the surrounding brick or stone is up to temperature, it continues radiating heat into the room well after the active fire has died down. The first hour from a cold start is the slowest because that mass has to come up to temperature; once it's hot, response time is faster.\u003c\/p\u003e\n\n\u003cp\u003eThe 17-inch maximum log capacity has limited margin over the 16-inch standard supplier cut. Confirm your firewood supply before buying — even a half-inch over forces awkward angled loading. The practical loading depth is closer to 14–15 inches once you account for the air gap behind the glass; nobody loads logs hard against the air-wash. Plan firewood cuts accordingly.\u003c\/p\u003e\n\n\u003cp\u003eThe included 90 CFM tangential blower meaningfully improves heat transfer from the air jacket into the room. Because most of the insert's firebox sits inside the masonry cavity, the radiant heat that would otherwise reach the room from a freestanding stove is partly absorbed by the surrounding brick. The convection jacket around the firebox captures that heat and the blower pushes it out into the room. The thermodisc handles automatic on\/off based on insert temperature — set the rheostat and the sensor decides when the blower actually runs. The insert takes about an hour to reach blower-activation temperature from a cold start, then the sensor starts the blower automatically and shuts it off when the insert cools at the end of a burn. At lower settings the blower is unobtrusive; at higher settings it is audible. Blower noise is the most consistent owner complaint on this platform.\u003c\/p\u003e\n\n\u003cp\u003eAir-wash glass stays largely clear during proper hot burns at moderate-to-high air settings. At low burn rates — particularly overnight loads with the air choked down — the small firebox produces less velocity over the glass than larger inserts, and tar will form on the lower edges and corners. This is universal to non-catalytic small inserts in this class, not specific to Osburn.\u003c\/p\u003e\n\n\u003cp\u003ePower-failure operation: the insert continues to burn safely without electricity — only the blower stops. Heat distribution drops noticeably without the blower because the masonry cavity absorbs most of the firebox radiation. Plan accordingly if you're buying this insert specifically as a power-outage heat source.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eTrade-offs to know\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eSmall firebox, short burns.\u003c\/strong\u003e A 1.1 ft³ non-cat insert gives you simpler operation and lower up-front cost than a hybrid or catalytic, but you pay for it with shorter burns. If you want to load at 9 PM and have meaningful heat at 6 AM, this is not the right tool. Plan on reloading every 2–3 hours during active heating and accepting that overnight will end at coals.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe 1,200 sq ft figure is aspirational.\u003c\/strong\u003e The most consistent owner regret across small SBI inserts is buying for the high end of the manufacturer's heating range. If you need to reliably heat more than ~900 sq ft as primary winter heat, step up a firebox size — the Osburn 1700-I, Pacific Energy Super, or a hybrid all give meaningfully more usable heat for the same operational effort.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFlush insert depends on the blower.\u003c\/strong\u003e The Matrix 1900's flush design means most heat transfer to the room runs through the air jacket and out via the 90 CFM blower. Without the blower, output is largely radiant through the glass — usable, but a fraction of the rated convective performance. Buyers who want to heat without electricity dependence should consider a protruding insert or a freestanding stove.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlower noise is a known complaint.\u003c\/strong\u003e Owner reports on this platform consistently cite blower vibration and audibility as the platform's most consistent weakness. SBI's design is intentional — slower, hotter air rather than higher CFM cool air — but at higher rheostat settings the blower is audible. Several owners report rattling at certain conditions; if vibration or hum develops, have the installer or dealer inspect blower mounting, clearances, and service parts rather than improvising modifications.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNo ash lip on the flush design.\u003c\/strong\u003e The Matrix 1900 ships without an ash lip — common on flush inserts. Ash spilled at the door opening can be drawn into the blower intake. Plan for careful loading technique, a small hearth-side ash brush, and turning the blower OFF before opening the door fully.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood quality is not negotiable.\u003c\/strong\u003e The most common \"the insert doesn't heat\" complaint comes from owners running 22–25% moisture wood. The advanced combustion features only work in the 15–20% range. A pin-type moisture meter is the single best accessory for this insert.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGlass blackens at low burn rates.\u003c\/strong\u003e Universal to non-cat tube inserts in this firebox class. Daily hot cleanup burns and tolerance for a periodic wipe are part of operating this insert. Owners chasing always-clear glass on long, slow burns should look at catalytic technology.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLiner, block-off plate, and labor are not in the appliance price.\u003c\/strong\u003e The insert is the appliance; the chimney liner, the block-off plate, the insulation wrap, and the professional installation are separate purchases that need to be planned for. Older or taller chimneys, offset flues, and damper-frame removal add to install complexity. Skipping the liner, the block-off plate, or the insulation wrap saves money up front and costs measurable performance and creosote durability after.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePremium finish, mid-tier output.\u003c\/strong\u003e The cast-iron decorative faceplate, patterned upper louver, framing columns, cast-iron arched door, C-Cast baffle, lifetime weld warranty, and recessed flush blower are strong fit-and-finish points for a small insert. The trade-off is firebox size — this is a beautifully finished small insert, not a high-output workhorse.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eConfiguration is a one-time decision.\u003c\/strong\u003e Door overlay color (Black or Brushed Nickel) is configured at order, not field-swappable. Choose the configuration that matches the fireplace you're installing into.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eOperating reality\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eFirst burns.\u003c\/strong\u003e The first three to six fires release paint VOCs as the high-temperature stove paint cures. The smell can be strong; ventilate the room well and avoid prolonged exposure during cure-in. Run the insert hot and expect the smell to disappear permanently after the cure-in.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLighting.\u003c\/strong\u003e The manual describes a top-down conventional method as effective on the Matrix 1900 — small splits at the base, smaller splits crossed over them, kindling on top, fire starter at the very top, light the top. Cleaner ignition, less smoke, faster to operating temperature. Leave the door slightly ajar for about 5 minutes during light-off; close once the fire is well established. The manual also describes an EPA-style loading procedure for cleanest combustion.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAir control.\u003c\/strong\u003e The control is located above the door and uses a removable wood-grip handle that clips into the lower louver. Slide the handle onto the air-control stem only when adjusting; do not leave it on during use, as the metal stem gets very hot. Full open at light-off; gradually closed only after the load is fully engaged and stable secondary flames are established. Closing too fast and the fire smolders. A flue thermometer is strongly recommended; without one, you are guessing at draft, burn rate, and overfire risk.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eReload cadence.\u003c\/strong\u003e 2–3 hours between reloads in active heating use; up to 4 hours for a final overnight pack with the air shut hard. Rake remaining charcoal toward the front of the firebox before loading — this concentrates the coals near where most of the combustion air enters and helps ignite the new load. Open the air for a minute or two before opening the door, open the door slowly to avoid smoke rollout, load, close the door, and run the air open until the load is fully engaged before reducing gradually. Turn the blower OFF before opening the door fully to reduce ash disturbance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBurn in cycles, not single-log feeds.\u003c\/strong\u003e The manual is explicit: do not attempt to produce steady heat output by placing a single log on the fire at regular intervals. Always place at least three pieces on the fire at a time so the heat radiated from one piece helps ignite the pieces next to it. Each load should provide several hours of heating.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCarbon monoxide watch.\u003c\/strong\u003e Per the manual, if the firebox no longer shows flame but still contains unburned logs, check outside for smoke from the chimney. Smoke without flame means the fire is air-starved and CO levels are rising. Open the door slightly, move the logs with a poker, create a passage for air by making a trench in the ember bed, and add small kindling-size pieces to restart combustion.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAsh management.\u003c\/strong\u003e The Matrix 1900 uses a hollow-bottom firebox; ash is scooped manually from the front. The deep combustion-chamber bottom allows ash to accumulate longer than shallower designs, reducing cleanout frequency. The manual recommends emptying every 2–3 days during full-time heating. The best time to remove ash is in the morning after an overnight fire when the insert is relatively cool but there is still some chimney draft to draw ash dust into the insert rather than into the room. Always dispose of ash in a tightly covered metal container on a non-combustible surface, well away from combustible materials — ash retains hot embers for days and releases carbon monoxide. Never store ashes indoors, in a non-metallic container, or on a wooden deck.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGlass cleaning.\u003c\/strong\u003e Damp newspaper dipped in cold ash, or a dedicated ceramic-glass cleaner. Daily wipe during low-burn weather; weekly during high-burn. Black streaks at the lower edge mean wet wood; black uniformly across the glass means burns are running too cool. Brown stains at the lower corners mean smoky combustion. Do not clean the glass when the insert is hot, and do not strike or slam the glass door shut.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoor and glass gaskets.\u003c\/strong\u003e Per the manual, the door gasket needs replacement when the paper-strip test fails: close the door on a strip of paper and try to pull it out; firm resistance means the gasket is sealing, easy pull means it's time to replace. Test all the way around the door, not just at the latch. The latch mechanism is adjustable — remove the split pin with pliers and turn the handle one counterclockwise turn to increase pressure. Plan on every 3–5 seasons in regular use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAnnual chimney sweep.\u003c\/strong\u003e Per the manual, the chimney and liner should be cleaned and inspected at least once each year. Inspect every two months during the heating season until you know your creosote-formation rate; monthly is safer for new burners. If buildup reaches 1\/8 inch, sweep immediately. The baffle and secondary tubes lift out for sweep access. Insert installations make sweeping more involved than freestanding stoves — many owners hire a CSIA-certified sweep rather than doing it themselves.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood seasoning.\u003c\/strong\u003e Hardwood needs 12–24 months split, stacked off the ground, top-covered, with sun and wind on the sides. Don't trust supplier \"seasoned\" claims — use a pin-type moisture meter, split a piece in half, measure the fresh face. Manual target: 15–20% moisture. Wood above 25% will smolder, soot the glass, line the chimney with creosote, and undercut every published efficiency and emissions number on this page.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlower maintenance.\u003c\/strong\u003e Keep the blower intake and fins free of dust. Vacuum dust accumulation annually. Do not oil the blower unless the manual specifically calls for lubrication. If the blower fails to engage automatically when the insert reaches operating temperature, have the installer or dealer inspect the thermodisc mounting and contact with the insert body — improper seating is the most common cause of auto-activation issues on small SBI inserts. Replacement blowers and related service parts are available through Osburn\/SBI dealers and parts channels if needed years out.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRefractory bricks and baffle.\u003c\/strong\u003e The intense heat of the fire can cause slight cracks in the refractory bricks — minor cracks do not reduce effectiveness. Inspect periodically and replace any wider cracks. The baffle and secondary tubes can be removed for sweep access and inspection. Operation with a cracked or missing baffle may cause unsafe temperatures and voids the warranty.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eChimney fire response.\u003c\/strong\u003e If a chimney fire occurs: close the insert door and the air-intake control, alert occupants, contact the fire department if assistance is needed, use a dry chemical fire extinguisher or baking soda or sand to control the fire (never water — it causes a dangerous steam explosion), and do not use the appliance again until the insert and chimney have been inspected by a qualified chimney sweep or fire-department inspector.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat never to burn.\u003c\/strong\u003e Per the manual and EPA fuel rules: no coal, garbage, yard waste, materials containing rubber or plastic, waste petroleum products, paint or paint thinners, asphalt products, painted or pressure-treated wood, railroad ties, manure or animal remains, plywood, particle board, paper products, asbestos materials, construction or demolition debris, salt-water driftwood, or unseasoned wood. This does not prohibit normal fire starters made from paper, cardboard, sawdust, wax, or similar substances when used only to start a fire. Burning prohibited materials destroys the firebox, voids the warranty, and releases toxic compounds into your home and the chimney. Do not burn compressed logs made of wax-impregnated sawdust or logs with chemical additives; 100% compressed-sawdust logs can be used with caution.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWarranty and service\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe Osburn limited lifetime warranty applies to the original retail purchaser only and is non-transferable. The warranty applies to normal residential use only. Proof of purchase (dated bill of sale), model name, and serial number are required for any warranty claim. Online registration is recommended at osburn-mfg.com but not required if a dated invoice is retained.\u003c\/p\u003e\n\n\u003ch3\u003eCoverage by component\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eComponent\u003c\/span\u003e\u003cspan\u003eParts\u003c\/span\u003e\u003cspan\u003eLabor\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustion chamber welds, cast-iron door frame\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCeramic glass, plating manufacturing defects, convector air-mate\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eSurrounds, heat shields, trims, C-Cast baffle, secondary air tubes\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e7 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHandle assembly, glass retainers, air control mechanism\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e3 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eRemovable carbon-steel firebox components\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eBlower, heat sensors, switches, rheostat, wiring, electronics\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e2 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePaint (peeling), gaskets, insulation, ceramic fiber blankets, and other options\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eReplacement parts under warranty\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e90 d\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eA one-time replacement limit applies to all parts with lifetime coverage. Warranty is void if the unit is used to burn anything other than seasoned cordwood, or if it is not operated according to the owner's manual. Damage caused by misuse, improper installation, lack of maintenance, overfiring, downdrafts, venting problems, or under-estimated heating area is not covered. Improper installation by anyone other than an authorized qualified technician voids the warranty.\u003c\/p\u003e\n\n\u003cp\u003eWarranty claims are made through your Osburn dealer and remain subject to SBI\/Osburn inspection, approval, and the current written warranty. Kaminos is the retailer for this insert and supports buyers through purchase; final warranty approval rests with SBI as the manufacturer. SBI's parts network is well-stocked — replacement bricks, baffle, secondary tubes, glass, gaskets, and blower are openly available at fair prices through multiple parts vendors.\u003c\/p\u003e\n\n\u003cp class=\"warranty-note\"\u003eOsburn may require photos or returned parts to support a claim; repair work covered by warranty requires prior manufacturer approval.\u003c\/p\u003e\n\n\u003cp class=\"warranty-note\"\u003eCoverage details can change by component and warranty revision; the current Osburn warranty controls.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCompare with\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eEnerzone Destination 1.9 Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eMechanically identical SBI chassis — same 1.1 ft³ firebox, same 45,000 BTU\/hr maximum, same 17-inch log capacity, same 90 CFM blower, same 75% HHV efficiency, same 1.5 g\/hr emissions, same 7-hour burn time, same minimum masonry opening, same warranty schedule. The Destination 1.9 is the plainer Enerzone-branded sibling at a lower price point; the Matrix 1900 adds the cast-iron decorative faceplate with patterned upper louver and framing columns plus Black or Brushed Nickel door overlay configurability. Choose the Matrix 1900 for the Osburn finish detailing; performance is the same.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eOsburn 1700-I Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eStep-up sibling in the Osburn insert line. Larger 1.86 ft³ firebox, 65,000 BTU\/hr maximum, 500–1,800 sq ft heating range, 18-inch log capacity, 144 CFM blower, 68% HHV efficiency. Larger masonry opening required (21 1\/2\" × 27 1\/2\" × 12 7\/8\"). Configurable Regular\/Large faceplate in Black or Brushed Nickel plus configurable door overlay. Choose the 1700-I for larger spaces and longer log capacity; choose the Matrix 1900 for smaller masonry openings, higher published efficiency, and the Matrix decorative faceplate aesthetic.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eDrolet Escape 1500-I Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eSBI sibling under the Drolet brand. Larger 1.9 ft³ overall firebox at a lower price point, with the shallowest depth in class (12 3\/4\") and an 18-inch log capacity. Wider 27 1\/2\" minimum opening, so it won't fit some smaller hearths the Matrix 1900 will. Same SBI parent, same warranty schedule, plainer styling without the cast-iron decorative faceplate.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003ePacific Energy Neo 2.5 Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eCross-brand step-up. 2.0 ft³ firebox, premium build, sealed-firebox technology with single-lever non-cat operation, longer realistic 6–8 hour burns, better heat retention. Won't fit the smallest hearths and typically costs more delivered. The most-mentioned cross-shop on hearth-enthusiast forums when buyers compare to the Matrix 1900 — Pacific Energy fit-and-finish at a higher price point versus the SBI dealer\/parts accessibility and the Osburn finish detailing.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cp class=\"pull\"\u003eThe Matrix 1900 is the dressed-up sibling of the Enerzone Destination 1.9 — same chassis, same heat, same install. What you're buying is the cast-iron decorative faceplate, the configurable door overlay, and the Osburn finish detailing. If those matter to the room, and the masonry opening is in the right size range, this is the right one.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Osburn","offers":[{"title":"Black","offer_id":49276792078529,"sku":"OB01900+OA10041","price":2349.0,"currency_code":"USD","in_stock":true},{"title":"Brushed nickel","offer_id":49276792111297,"sku":"OB01900+OA10042","price":3514.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/osburn-matrix-1900-wood-insert-ob01900-front-view_481d87cb-4f22-47ca-b9ab-e2de1cbf0a5f.webp?v=1748290458"},{"product_id":"osburn-2000-i-wood-insert","title":"Osburn 2000-I Wood Insert","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #231F20; line-height: 1.55; width: 100%; max-width: 100%; box-sizing: border-box; margin: 0; padding: 0; font-size: 16px; overflow-wrap: break-word; word-wrap: break-word; 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min-width: 56px; }\n  .km-desc ul { list-style: none; padding: 0; margin: 10px 0 14px; }\n  .km-desc ul li { padding: 4px 0 4px 18px; position: relative; line-height: 1.55; }\n  .km-desc ul li:before { content: \"—\"; position: absolute; left: 0; color: #9B774D; font-weight: 500; }\n  .km-desc .compare-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .compare-row:last-child { border-bottom: 0; }\n  .km-desc .compare-name { font-weight: 600; color: #231F20; display: inline-block; padding-bottom: 1px; }\n  .km-desc .compare-orient { color: #4B484B; margin-top: 4px; font-size: 13px; line-height: 1.5; }\n  .km-desc .pull { font-style: italic; font-size: clamp(16px, 4.2vw, 22px); line-height: 1.4; color: #231F20; border-left: 2px solid #9B774D; padding: 0 0 0 16px; margin: 32px 0 16px; }\n  .km-desc .lede { font-size: clamp(16px, 4vw, 22px); line-height: 1.4; letter-spacing: -0.2px; font-weight: 400; color: #231F20; margin: 0 0 24px; }\n  .km-desc .warranty-note { font-size: 12px; color: #4B484B; font-style: italic; margin-top: 14px; }\n  .km-desc details { border-top: 1px solid rgba(75,72,75,0.18); margin: 0; padding: 0; }\n  .km-desc details:last-of-type { border-bottom: 1px solid rgba(75,72,75,0.18); }\n  .km-desc details \u003e summary { list-style: none; cursor: pointer; padding: 18px 32px 18px 0; position: relative; font-size: clamp(16px, 4.2vw, 20px); line-height: 1.3; font-weight: 500; color: #231F20; letter-spacing: -0.2px; }\n  .km-desc details \u003e summary::-webkit-details-marker { display: none; }\n  .km-desc details \u003e summary::after { content: \"+\"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-size: 22px; font-weight: 300; color: #9B774D; line-height: 1; }\n  .km-desc details[open] \u003e summary::after { content: \"−\"; }\n  .km-desc details \u003e summary:focus-visible { outline: 2px solid #9B774D; outline-offset: 4px; }\n  .km-desc details \u003e .acc-body { padding: 0 0 28px 0; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"km-desc\"\u003e\n\n\u003cp class=\"lede\"\u003eA 2.4 ft³ non-catalytic medium-large wood insert built around a traditional cast-iron door with a 17 1\/8\" × 10 1\/4\" ceramic glass viewing window and a configurable faceplate system — choose Regular (29\" × 44\") or Large (32\" × 50\") with optional Black or Brushed Nickel trim packages, plus an optional Black or Brushed Nickel steel door overlay. EPA 2020 cordwood certified at 2.3 g\/hr particulate emissions, 72% HHV efficiency, 75,000 BTU\/hr maximum output, 20-inch maximum east-west log capacity, up to 8-hour maximum burn time, and a 144 CFM variable-speed blower included as standard. The shallow-depth (15 3\/4\") medium-large insert in the Osburn line — fits openings the deeper Inspire 2000-I won't.\u003c\/p\u003e\n\n\u003cdetails open\u003e\n\u003csummary\u003eWho this is for\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003ch3\u003eRight buyer\u003c\/h3\u003e\n\u003cp\u003eOwners of a working masonry fireplace who want to convert an inefficient open hearth into a serious primary heat source — up to 2,100 sq ft of zone heating capability with a 2.4 ft³ firebox, 20-inch log capacity, and an 8-hour maximum burn cycle. Reasonable insulation, access to seasoned hardwood at 15–20% moisture, and an existing masonry fireplace that meets the minimum opening dimensions (23 3\/8\" H × 28 7\/8\" W × 15 3\/4\" D per manual) are the basic requirements.\u003c\/p\u003e\n\n\u003cp\u003eBuyers with a medium-depth masonry opening that won't take the deeper Inspire 2000-I. The 2000-I's 15 3\/4\" minimum depth is meaningfully shallower than the Inspire's 20 3\/4\" requirement — for a buyer who wants medium-large firebox capability and the masonry depth is tight, this is the right tool. The trade-off is a less powerful blower (144 CFM vs the Inspire's 176 CFM).\u003c\/p\u003e\n\n\u003cp\u003eBuyers heating 1,400–1,900 sq ft as primary winter heat in moderate climates, or 1,200–1,500 sq ft in cold climates and older homes. The 2000-I sits in the upper-middle of the Osburn insert line — meaningfully more firebox than the 1700-I, with a different aesthetic and depth profile from the larger 3500-I or Matrix 2700.\u003c\/p\u003e\n\n\u003cp\u003eBuyers who want the traditional Osburn aesthetic with configurable trim. The cast-iron arched door, glass viewing window, and selectable faceplate trim (Black or Brushed Nickel) plus optional steel door overlay give the front face real detail — not as decorative as the Matrix line, not as minimal as the Inspire. The 2000-I is the most-configurable insert in the Osburn line on the front face.\u003c\/p\u003e\n\n\u003cp\u003eBuyers with a high mantel or large surround. The 2000-I's 9\" minimum side-mantel and 27\" top-mantel clearances are tighter than the smaller 1700-I, which means it can sit closer to a tall combustible mantel than smaller siblings. Verify your specific install with a certified installer before committing.\u003c\/p\u003e\n\n\u003ch3\u003eWrong buyer\u003c\/h3\u003e\n\u003cp\u003eNot for buyers without an existing code-compliant masonry fireplace. Wood inserts must be installed inside a lined masonry fireplace with a continuous stainless-steel chimney liner running the full height. This insert requires a substantial opening (23 3\/8\" H × 28 7\/8\" W × 15 3\/4\" D per manual). Not approved for factory-built (prefab) metal fireplaces, mobile homes, alcoves, or freestanding installation.\u003c\/p\u003e\n\n\u003cp\u003eNot for buyers who want the most powerful blower in the line. The 2000-I uses the 144 CFM blower shared with the 1700-I and 3500-I — not the 176 CFM unit found in the Matrix 2700 and Inspire 2000-I. For maximum heat-into-the-room performance, those models will move more air.\u003c\/p\u003e\n\n\u003cp\u003eNot for buyers heating under 1,200 sq ft. The 2.4 ft³ firebox will overheat a smaller space and force you to run it inefficiently. For smaller spaces, step down to the Osburn 1700-I.\u003c\/p\u003e\n\n\u003cp\u003eNot for buyers expecting 10+ hour overnight burns. The 8-hour manufacturer maximum is achievable on a packed load of dense hardwood with the air shut down hard, but useful heat from a packed load is realistically 6–7 hours. For longer burns, consider a catalytic insert.\u003c\/p\u003e\n\n\u003cp\u003eNot for buyers who want a modern, picture-window aesthetic. The 2000-I is intentionally traditional — cast-iron arched door, framed glass, configurable cast-iron faceplate. Buyers wanting the flush, contemporary look should compare against the Inspire 2000-I.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eAt a glance\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cdiv class=\"spec-list\"\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion technology\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNon-catalytic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eSecondary-air tubes reignite smoke gases. No catalyst to replace; one air-control lever; simpler operation than a cat insert but shorter low-and-slow burn times.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eInstallation type\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMasonry insert\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInstalls inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. Not approved for factory-built fireplaces, mobile homes, alcoves, or freestanding installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFirebox volume\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e2.4 ft³ overall \/ 1.95 ft³ EPA\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Medium-large firebox sized for primary zone heating across 500–2,100 sq ft. The overall figure includes a buffer zone above the EPA loading line; the 1.95 ft³ figure is the usable loading volume used during EPA emissions certification.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum heat output\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e75,000 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePeak output on dry cordwood, transient. Sustained output across a burn cycle is substantially lower.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eTested output range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e14,200–44,500 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer CSA B415.1-10 stack-loss method. The realistic operating band buyers should plan around — from a steady low burn at the bottom up through strong sustained output in the upper end.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eHeating range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e500–2,100 sq ft\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer's stated range. Real-world comfort sizing for primary heat is roughly 1,400–1,900 sq ft in moderate climates and lower in cold climates or older homes — depends on insulation, layout, climate, ceiling height, fuel quality, and installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eAverage efficiency\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e72% HHV \/ 77% LHV\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003e79% optimum overall efficiency at low burn rate; 76% optimum heat transfer efficiency. HHV is the federal standard. Government incentives may apply by jurisdiction and installation date.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eParticulate emissions\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e2.3 g\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manufacturer's published spec table. EPA 2020 limits are 2.0 g\/hr crib-wood or 2.5 g\/hr cordwood. The 2000-I is compliant with the federal cordwood standard.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum burn time\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUp to 8 hours\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer maximum at the lowest air setting. Useful heat through a burn cycle is realistically 6–7 hours.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eRecommended log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e16 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Most firewood suppliers cut to this length.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e20 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003e4-inch margin over the recommended length — meaningful for buyers with access to longer-cut firewood. Logs load across the width of the firebox, sides visible from the door.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eConstruction\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eCarbon steel, cast-iron door\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eWelded carbon-steel firebox with a cast-iron arched door frame and configurable cast-iron faceplate. 3\/16\" body, 5\/16\" top. Lifetime warranty on the combustion-chamber welds.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFaceplate\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eRegular or Large\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eTwo configurable sizes at order: Regular (29\" × 44\") or Large (32\" × 50\"). Each can be ordered with optional Black or Brushed Nickel faceplate trim packages. Plus an optional Black or Brushed Nickel steel door overlay across the front of the door — the most configurable front-face of any insert in the Osburn line.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eGlass\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e17 1\/8\" × 10 1\/4\", ceramic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eCeramic glass viewing window with air-wash. Replacement glass must be the same ceramic specification — tempered or ordinary glass will not withstand the operating temperatures.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBlower\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eIncluded, 144 CFM\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePremium-quality variable-speed blower with rheostat speed control and thermodisc auto-on. Same blower as the smaller 1700-I and the larger 3500-I — distinct from the 176 CFM unit in the Matrix 2700 and Inspire 2000-I.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBaffle\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eC-Cast\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eRigid aluminosilicate fiber baffle rated above 2,000 °F.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFlue connection\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e6 in (insert liner)\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eTop of the unit. Requires a continuous stainless-steel chimney liner running the full height of the masonry chimney. Liner must conform to UL 1777 (USA), CAN\/ULC-S635, or CAN\/ULC-S640 (Canada). Per manual, minimum chimney height 12 feet. Sold separately.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion chamber\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e21\" W × 16 3\/4\" D × 11 7\/8\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInside firebox dimensions per manufacturer spec. Designed for east-west loading across the width of the firebox.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDoor opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e17 1\/2\" W × 9\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eHorizontal loading door opening. Accommodates 20-inch logs loaded east-west with margin.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eOverall dimensions\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e28 3\/8\" W × 26 3\/8\" D × 23 1\/8\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eOverall appliance dimensions before the faceplate. Final installed width depends on the faceplate configuration chosen at order.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMinimum masonry opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e23 3\/8\" H × 28 7\/8\" W × 15 3\/4\" D\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. The 15 3\/4\" minimum depth is notably shallower than the Inspire 2000-I (20 3\/4\") and the Matrix 2700 (22 1\/8\") — the 2000-I fits medium-depth masonry openings the larger inserts can't.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eShipping weight\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e432 lb\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePlan for multi-person handling — three-person minimum is reasonable for this weight class. Remove loose internal components as appropriate during installation to reduce handling weight.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMobile home approved\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNo\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eNot certified for mobile-home installation under any configuration.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCountry of origin\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMade in Canada\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufactured by Stove Builder International (SBI) in Saint-Augustin-de-Desmaures, Quebec.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhere it can go\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe 2000-I is approved only for installation inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. It is not approved for installation in factory-built (prefab) metal fireplaces, in mobile or manufactured homes, in alcoves, or as a freestanding unit. The masonry fireplace and chimney must be inspected before installation for cracks, loose mortar, creosote, blockage, or other signs of deterioration.\u003c\/p\u003e\n\n\u003ch3\u003eMinimum masonry opening\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eDimension\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHeight\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e23 3\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eWidth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e28 7\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eDepth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e15 3\/4\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eIf a fresh-air intake is being installed, add at least 4 inches to the minimum width. Plan for a small installation margin above the insert to seat the liner adapter — an opening exactly at the minimum will be a tight install. Measure carefully before ordering. The 15 3\/4\" minimum depth is the 2000-I's positioning advantage over the deeper-required inserts in the Osburn line.\u003c\/p\u003e\n\n\u003ch3\u003eFaceplate options\u003c\/h3\u003e\n\u003cp\u003eThe 2000-I requires one faceplate size selection at order, with optional trim and door-overlay configurations:\u003c\/p\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eConfiguration\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eSize\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eRegular faceplate\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e29\" × 44\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eLarge faceplate\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e32\" × 50\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eEach faceplate size can be ordered with an optional Black or Brushed Nickel trim package (matching faceplate dimensions) — this is the configurable decorative frame that sits around the appliance face. Plus an optional Black or Brushed Nickel steel door overlay across the door. All configurable selections are made at order and are not field-swappable. Choose the configuration that matches the masonry opening and the look you want. For larger openings beyond the Large faceplate's 32\" × 50\" coverage, an optional 32\" × 50\" cuttable faceplate (SBI AC01357, 18 GA) extends the cover area — the cuttable can be trimmed to contour an arched fireplace or to minimize visible flashing, ordered as a separate accessory.\u003c\/p\u003e\n\n\u003ch3\u003eClearances to combustibles\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eSurface\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eAdjacent combustible side wall\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e16\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eFaceplate to combustible side mantel\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e9\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eFaceplate to combustible top mantel\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eTop of insert to combustible shelf\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePlatform \/ floor protection to ceiling\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e84\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eThe certification label on the back of the insert always overrides clearance figures published elsewhere. An optional heat shield (SBI AC01317, 7 3\/16\" × 26\") is available for surround\/shelf applications where additional protection is needed.\u003c\/p\u003e\n\n\u003ch3\u003eFloor protection\u003c\/h3\u003e\n\u003cp\u003eFloor protection requirements depend on whether the existing masonry hearth is raised above the surrounding combustible floor and whether it extends sufficiently in front of the appliance. The manual requires a non-combustible floor protector extending at least 16 inches in front of the unit in the USA or 18 inches in Canada, measured from the door opening. If the masonry hearth is level with or only slightly raised above the surrounding combustible floor, an R-value floor protector may be required per the manual's floor-protection worksheet. The manual includes a thermal-resistance lookup table for common floor protection materials (brick, cement board, ceramic tile, marble) to calculate the required R-value combination. Tile alone is not sufficient — the manual requires a continuous non-combustible sheet beneath any tile installation. Final hearth protection must be calculated from the manual's floor-protection worksheet and approved by the installer\/AHJ.\u003c\/p\u003e\n\n\u003ch3\u003eChimney and liner\u003c\/h3\u003e\n\u003cp\u003eThe 2000-I requires a continuous 6-inch stainless-steel chimney liner extending from the insert flue collar to the top of the chimney. The liner must conform to ULC S635, CAN\/ULC-S640 (Canada) or UL 1777 (USA) and be rated for solid fuel. The minimum liner height is 12 feet, subject to installer verification, certification label, draft conditions, and local code. The chimney must extend at least 3 feet above the highest point of contact with the roof and at least 2 feet above any roof line or obstacle within 10 feet horizontally.\u003c\/p\u003e\n\n\u003cp\u003eThe 2000-I performs best with a 6-inch stainless-steel chimney liner. In the USA, use a 6-inch liner listed to UL 1777. In Canada only, connection to a chimney liner of at least 5 inches may be permitted if it properly vents combustion gases, the total masonry chimney height is greater than 20 feet, and the application is verified and authorized by a qualified installer. The insert is not approved for a positive flue connection to clay tile — a continuous stainless liner is required.\u003c\/p\u003e\n\n\u003cp\u003eIf the existing fireplace's throat damper is to remain, it must be locked open to clear the liner; otherwise the damper plate must be removed. A sheet-metal block-off plate sealed at the damper level (or, in Canada per CSA B365, mineral wool packing around the liner) is recommended at the throat to reduce cold-air backdraft and to allow the insert to deliver rated performance — without it, jacket-recovered heat is lost into the smoke chamber. An insulated liner (or pre-insulated liner with a wrap) improves draft and reduces creosote, and is required by code in some jurisdictions for clearance reasons.\u003c\/p\u003e\n\n\u003ch3\u003eOutside air\u003c\/h3\u003e\n\u003cp\u003eAn optional 5-inch fresh-air intake kit is available for code jurisdictions requiring outside combustion air or for tight new-construction homes with mechanical ventilation. In conventional homes the manual identifies room air as the safest and most reliable supply for combustion; almost all houses have enough natural leakage to provide what the insert needs. A smoke detector and carbon monoxide detector are required in the room where the insert is installed.\u003c\/p\u003e\n\n\u003ch3\u003eCode compliance\u003c\/h3\u003e\n\u003cp\u003eCode compliance for any specific installation is determined by the local Authority Having Jurisdiction. Manufacturer listings cover what the insert is approved for; the AHJ approves what is permitted at your address. A WETT (Canada), NFI, or CSIA (USA) certified installer is strongly recommended and frequently required by code, permit, or insurance. In Canada the CSA B365 standard applies; in the USA, ANSI NFPA 211 applies. Confirm local requirements before purchasing — particularly in EPA non-attainment counties and in HOA jurisdictions where new wood-burning installs may be restricted.\u003c\/p\u003e\n\n\u003ch3\u003eCalifornia Proposition 65\u003c\/h3\u003e\n\u003cp\u003eThis product can expose you to chemicals including carbon monoxide, which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.P65warnings.ca.gov.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat's in the box, what you'll add\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003ch3\u003eShips with the insert\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOsburn 2000-I wood insert (OB02016) with welded carbon-steel firebox and cast-iron arched glazed door\u003c\/li\u003e\n\u003cli\u003eConfigured at order with required faceplate selection (Regular 29\" × 44\" or Large 32\" × 50\") — see \"Where it can go\" for the options\u003c\/li\u003e\n\u003cli\u003e144 CFM premium-quality variable-speed blower with rheostat speed control and thermodisc auto-on\u003c\/li\u003e\n\u003cli\u003eC-Cast baffle and stainless-steel secondary-air tube assembly\u003c\/li\u003e\n\u003cli\u003eMoulded refractory bricks lining\u003c\/li\u003e\n\u003cli\u003eAdjustable threaded legs\u003c\/li\u003e\n\u003cli\u003eRemovable air-control handle\u003c\/li\u003e\n\u003cli\u003eLiner fixation brackets and hardware\u003c\/li\u003e\n\u003cli\u003eOwner's manual and product documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSold separately\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e6-inch continuous stainless-steel chimney liner kit (UL 1777, CAN\/ULC-S635, or CAN\/ULC-S640) — required for installation, sized to the chimney height\u003c\/li\u003e\n\u003cli\u003eHearth extension or floor protector sized per manual specifications, extending at least 16 inches in front of the unit in the USA, 18 inches in Canada\u003c\/li\u003e\n\u003cli\u003eSheet-metal block-off plate, high-temp silicone, and mineral wool insulation — effectively required in practice for the insert to deliver rated performance\u003c\/li\u003e\n\u003cli\u003eOptional faceplate trim package in Black or Brushed Nickel — configured at order to match the chosen faceplate size\u003c\/li\u003e\n\u003cli\u003eOptional steel door overlay in Black or Brushed Nickel — configured at order\u003c\/li\u003e\n\u003cli\u003eOptional 32\" × 50\" cuttable faceplate, 18 GA (SBI AC01357) — for masonry openings larger than the Large faceplate covers\u003c\/li\u003e\n\u003cli\u003eOptional 7 3\/16\" × 26\" heat shield for surround\/shelf (SBI AC01317) — for installations requiring additional surround protection\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch fresh-air intake kit (SBI AC01298) — for code jurisdictions requiring outside combustion air or for tight new-construction homes\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch × 4' insulated flex pipe for fresh-air intake (SBI AC02090) — HVAC type, ULC S110 or UL 181 class 0 or class 1\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch fresh-air intake register with airtight damper (SBI AC01349) — do not close while in use\u003c\/li\u003e\n\u003cli\u003eOptional rigid firescreen (SBI AC01315) — for occasional attended fire viewing only where permitted by local code and only when used exactly as instructed in the fire screen manual; never leave the insert unattended when used with a fire screen\u003c\/li\u003e\n\u003cli\u003eOptional liner hook-up system (SBI AC02006) — simplifies liner-to-flue-collar connection\u003c\/li\u003e\n\u003cli\u003eOptional offset liner adapter (SBI AC01214) — for installations where the chimney throat geometry requires offset connection\u003c\/li\u003e\n\u003cli\u003eOptional tempered glass hearth pad 10mm 18\" × 50\" (SBI AC02760)\u003c\/li\u003e\n\u003cli\u003ePin-type wood moisture meter — not optional in practice\u003c\/li\u003e\n\u003cli\u003eFlue thermometer — strongly recommended for insert installations since stove-top temperature isn't accessible\u003c\/li\u003e\n\u003cli\u003eInstallation by an authorized qualified technician (WETT, NFI, or CSIA certified) — required for warranty coverage and often required by code, permit, or insurance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow it actually performs\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe 75,000 BTU\/hr maximum is a peak rating, transient, achieved on dry cordwood at high loading density and short reload intervals. It is real, but it is a peak rating, not the average output across a full burn cycle of normal operation. The figure that matters for daily life is the sustained output across a full burn cycle, which lands in the 14,200–44,500 BTU\/hr band per the CSA B415.1-10 stack-loss method — a wide range covering shoulder-season heating on the low end and strong sustained output for cold-snap heating on the high end.\u003c\/p\u003e\n\n\u003cp\u003eA realistic burn cycle from a packed load of well-seasoned hardwood produces a 45-minute warm-up, 2–3 hours of strong sustained heat once the firebox and surrounding masonry come up to temperature, then a gradual decline over the next 3–4 hours with a coal bed remaining. Total useful heat from one full pack is realistically 6–7 hours, occasionally approaching the 8-hour manufacturer maximum with dense hardwood, mild weather, and a packed coal bed. Owner reports describe successful heating across 1,800–2,400 sq ft homes, with the highest-end results typically requiring well-insulated, open-plan layouts.\u003c\/p\u003e\n\n\u003cp\u003eThe masonry around the insert acts as a thermal mass. Once the surrounding brick or stone is up to temperature, it continues radiating heat into the room well after the active fire has died down. This is one of the underappreciated benefits of an insert versus a freestanding stove — the masonry stores and releases heat on its own cycle. The first hour from a cold start is the slowest because that mass has to come up to temperature; once it's hot, response time is faster.\u003c\/p\u003e\n\n\u003cp\u003eThe 144 CFM variable-speed blower is what gets the heat into the room. Because most of the insert's firebox sits inside the masonry cavity, the radiant heat that would otherwise reach the room from a freestanding stove is partly absorbed by the surrounding brick. The convection jacket around the firebox captures that heat and the blower pushes it out into the room. The rheostat allows speed adjustment, and the thermodisc handles automatic on\/off based on insert temperature. The 144 CFM rating is the same blower used in the smaller 1700-I and the larger 3500-I — meaningfully quieter at typical settings than the 176 CFM unit in the Matrix 2700 and Inspire 2000-I, but with less peak airflow.\u003c\/p\u003e\n\n\u003cp\u003eMultiple owner reports cite occasional thermodisc activation issues — the blower failing to engage in AUTO when the insert reaches operating temperature, or running constantly regardless of switch position. The issue is usually improper thermodisc seating against the insert body during installation; have the installer verify the sensor mounting before sign-off and test all switch positions before the installer leaves.\u003c\/p\u003e\n\n\u003cp\u003eAir-wash glass stays largely clear during proper hot burns at moderate-to-high air settings. At low burn rates with marginally seasoned wood, the glass will tar. This is universal to non-catalytic inserts, not specific to Osburn. The 17 1\/8\" × 10 1\/4\" glass is sized in proportion to the firebox — narrower than the Matrix 2700's wide-format glass, taller than the Inspire's horizontal picture window.\u003c\/p\u003e\n\n\u003cp\u003ePower-failure operation: the insert continues to burn safely without electricity — only the blower stops. Heat distribution drops noticeably without the blower because the masonry cavity absorbs most of the firebox radiation. Plan accordingly if you're buying this insert specifically as a power-outage heat source.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eTrade-offs to know\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eLess powerful blower than newer Osburn inserts.\u003c\/strong\u003e The 2000-I uses the 144 CFM blower shared with the 1700-I and 3500-I — not the 176 CFM unit in the Matrix 2700 and Inspire 2000-I. For an insert where most of the firebox sits inside the masonry cavity, blower CFM is what gets the heat into the room. The 144 CFM unit is quieter at typical settings but moves less air. If maximum heat delivery is the priority, the Matrix 2700 (deeper masonry opening) or Inspire 2000-I (deeper masonry opening) deliver more.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eShallow-depth advantage.\u003c\/strong\u003e The 15 3\/4\" minimum depth is meaningfully shallower than the Inspire 2000-I (20 3\/4\") and the Matrix 2700 (22 1\/8\") — the 2000-I fits medium-depth masonry openings the deeper-required inserts can't. For buyers with a shallow-but-wide existing fireplace, this is the most-likely-to-fit medium-large insert in the Osburn line.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSubstantial masonry opening required overall.\u003c\/strong\u003e The 23 3\/8\" H × 28 7\/8\" W footprint is still a real requirement — narrower fireplaces won't accept it. Measure carefully before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMultiple owner reports of blower thermodisc issues.\u003c\/strong\u003e Some owners report the blower failing to engage automatically or running constantly regardless of switch position. The issue is typically improper thermodisc seating during installation. Have the installer verify the sensor mounting before sign-off and test all switch positions before they leave.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eEmissions at the upper end of EPA compliance.\u003c\/strong\u003e The 2.3 g\/hr particulate emissions rate is well within the EPA 2020 cordwood limit (2.5 g\/hr) but higher than the 1.2 g\/hr Matrix 2700 or the 1.5 g\/hr Matrix 1900. In EPA non-attainment counties or jurisdictions with stricter local emission rules, this is worth comparing against the Matrix line.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e8-hour maximum burn is large-class, not long-burn class.\u003c\/strong\u003e A 2.4 ft³ non-cat insert gives you meaningful primary-heat capability across 1,400–1,900 sq ft, with realistic 6–7 hour burn cycles. If you want true 10+ hour overnight burns, consider a catalytic insert with a real low-output mode.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe 2,100 sq ft figure is aspirational.\u003c\/strong\u003e The most consistent owner regret across medium-large inserts is buying for the high end of the manufacturer's heating range. Several 2000-I owners successfully heat 1,800–2,400 sq ft homes, but those results require well-insulated, open-plan layouts; supplemental heat may still be needed in the coldest weather.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe blower is essential, not optional.\u003c\/strong\u003e Unlike a freestanding stove where the blower meaningfully improves heat distribution, on an insert the blower is what gets the heat into the room at all. Most of the firebox sits inside the masonry cavity, which absorbs radiant heat. The insert will run safely without the blower (useful in a power outage), but day-to-day heat into the room depends on the blower being on and working.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e432 lb shipping weight is heavy.\u003c\/strong\u003e Plan for three-person handling minimum and verify the installation route — stairs, narrow doorways, and tight masonry access make the install meaningfully harder than for smaller inserts.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLiner, block-off plate, and labor are not in the appliance price.\u003c\/strong\u003e The insert is the appliance; the chimney liner, the block-off plate, the insulation wrap, and the professional installation are separate purchases that need to be planned for. Older or taller chimneys, offset flues, and damper-frame removal add to install complexity. Skipping the liner, the block-off plate, or the insulation wrap saves money up front and costs measurable performance and creosote durability after.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eConfiguration is a one-time decision.\u003c\/strong\u003e Faceplate size (Regular or Large), trim package (Black or Brushed Nickel), and steel door overlay (Black or Brushed Nickel) are all configured at order — not field-swappable. Choose carefully based on the masonry opening and the look you want.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eShipping damage shows up in reviews.\u003c\/strong\u003e Multiple owner reports cite broken trim, scratches, or wrong-size overlays on arrival. SBI's parts network handles replacements but the experience can be frustrating. Inspect the shipment thoroughly on delivery before signing off — document any damage with photos before the installer leaves.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood quality is not negotiable.\u003c\/strong\u003e The most common \"the insert doesn't heat\" complaint comes from owners running marginally seasoned wood. Secondary combustion works best with dry, properly seasoned fuel, ideally around 15–20% moisture. A pin-type moisture meter is the single best accessory for this insert.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eOperating reality\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eFirst burns.\u003c\/strong\u003e The first three to six fires release paint VOCs as the high-temperature stove paint cures. The smell can be strong; ventilate the room well and avoid prolonged exposure during cure-in. Run the insert hot and expect the smell to disappear permanently after the cure-in.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLighting.\u003c\/strong\u003e Per the manual, the recommended method is the EPA loading procedure for cleanest combustion: place two small pieces in the bottom in a reverse-V shape, two medium-size pieces in an east-west orientation in the back over the reverse V, and a big piece in the front over the reverse V. Leave air space between pieces. Light, leave the door slightly ajar for about 5 minutes during light-off; close once the fire is well established. The manual also describes alternative methods (conventional bottom-up, top-down, two-parallel-logs).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAir control.\u003c\/strong\u003e Single-lever, located below the ash shelf. Push the handle to one position for HIGH (full air) and the opposite position for LOW (minimal air). Full open at light-off; gradually closed only after the load is fully engaged and stable secondary flames are established. Closing too fast and the fire smolders. A flue thermometer is strongly recommended; without one, you are guessing at draft, burn rate, and overfire risk.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlower operation.\u003c\/strong\u003e The 144 CFM variable-speed blower has a rheostat for speed adjustment plus a thermodisc-controlled AUTO mode that starts the blower when the insert reaches operating temperature and stops it when it cools down. Set the rheostat and the sensor handles the rest. Allow the insert to reach operating temperature (approximately one hour from cold start) before relying on the blower. Per the manual, turning the blower on too early during start-up pulls heat away from the firebox and slows the build-up to clean combustion.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eReload cadence.\u003c\/strong\u003e 3–4 hours between reloads in active heating use; up to 7 hours for a final overnight pack with the air shut hard. Rake remaining charcoal toward the front of the firebox before loading — this concentrates the coals near where most of the combustion air enters and helps ignite the new load. Place the new load on and at the back of the embers. Open the air for a minute or two before opening the door, open the door slowly to avoid smoke rollout, load, close the door, and run the air open until the load is fully engaged before reducing gradually. Turn the blower OFF before opening the door fully to reduce ash disturbance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBurn in cycles, not single-log feeds.\u003c\/strong\u003e The manual is explicit: do not attempt to produce steady heat output by placing a single log on the fire at regular intervals. Always place at least three (preferably more) pieces on the fire at a time so the heat radiated from one piece helps ignite the pieces next to it. Each load should provide several hours of heating.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCarbon monoxide watch.\u003c\/strong\u003e Per the manual, if the firebox no longer shows flame but still contains unburned logs, check outside for smoke from the chimney. Smoke without flame means the fire is air-starved and CO levels are rising. Open the door slightly, move the logs with a poker, create a passage for air by making a trench in the ember bed, and add small kindling-size pieces to restart combustion.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAsh management.\u003c\/strong\u003e The 2000-I uses a hollow-bottom firebox; ash is scooped manually from the front. Empty ash every 2–3 days during full-time heating. The best time to remove ash is in the morning after an overnight fire when the insert is relatively cool but there is still some chimney draft to draw ash dust into the insert rather than into the room. Always dispose of ash in a tightly covered metal container on a non-combustible surface, well away from combustible materials — ash retains hot embers for days and releases carbon monoxide. Never store ashes indoors, in a non-metallic container, or on a wooden deck.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGlass cleaning.\u003c\/strong\u003e Damp newspaper dipped in cold ash, or a dedicated ceramic-glass cleaner. Daily wipe during low-burn weather; weekly during high-burn. Black streaks at the lower edge mean wet wood; black uniformly across the glass means burns are running too cool. Brown stains at the lower corners mean smoky combustion. Do not clean the glass when the insert is hot, and do not strike or slam the glass door shut.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoor and glass gaskets.\u003c\/strong\u003e Per the manual, the door gasket needs replacement when the paper-strip test fails: close the door on a strip of paper and try to pull it out; firm resistance means the gasket is sealing, easy pull means it's time to replace. Test all the way around the door. The latch mechanism is adjustable — remove the split pin with pliers and turn the handle one counterclockwise turn to increase pressure. Plan on every 3–5 seasons in regular use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAnnual chimney sweep.\u003c\/strong\u003e Per the manual, the chimney and liner should be cleaned and inspected at least once each year. Inspect every two months during the heating season until you know your creosote-formation rate; monthly is safer for new burners. If buildup reaches 1\/8 inch, sweep immediately. The baffle and secondary tubes lift out for sweep access. Insert installations make sweeping more involved than freestanding stoves — many owners hire a CSIA-certified sweep rather than doing it themselves.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood seasoning.\u003c\/strong\u003e Hardwood needs 12–24 months split, stacked off the ground, top-covered, with sun and wind on the sides. Don't trust supplier \"seasoned\" claims — use a pin-type moisture meter, split a piece in half, measure the fresh face. Manual target: 15–20% moisture. Wood above 25% will smolder, soot the glass, line the chimney with creosote, and undercut every published efficiency and emissions number on this page.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlower maintenance.\u003c\/strong\u003e Keep the blower intake and fins free of dust. Vacuum dust accumulation annually. Do not oil the blower unless the manual specifically calls for lubrication. If the blower fails to engage automatically when the insert reaches operating temperature, have the installer or dealer inspect the thermodisc mounting and contact with the insert body — improper seating is the most common cause of auto-activation issues on this insert. Replacement blowers and related service parts are available through Osburn\/SBI dealers and parts channels if needed years out.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRefractory bricks and baffle.\u003c\/strong\u003e The intense heat of the fire can cause slight cracks in the refractory bricks — minor cracks do not reduce effectiveness. Inspect periodically and replace any wider cracks. The baffle and secondary tubes can be removed for sweep access and inspection. Operation with a cracked or missing baffle may cause unsafe temperatures and voids the warranty.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eChimney fire response.\u003c\/strong\u003e If a chimney fire occurs: close the insert door and the air-intake control, alert occupants, contact the fire department if assistance is needed, use a dry chemical fire extinguisher or baking soda or sand to control the fire (never water — it causes a dangerous steam explosion), and do not use the appliance again until the insert and chimney have been inspected by a qualified chimney sweep or fire-department inspector.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat never to burn.\u003c\/strong\u003e Per the manual and EPA fuel rules: no coal, garbage, yard waste, materials containing rubber or plastic, waste petroleum products, paint or paint thinners, asphalt products, painted or pressure-treated wood, railroad ties, manure or animal remains, plywood, particle board, paper products, asbestos materials, construction or demolition debris, salt-water driftwood, or unseasoned wood. This does not prohibit normal fire starters made from paper, cardboard, sawdust, wax, or similar substances when used only to start a fire. Burning prohibited materials destroys the firebox, voids the warranty, and releases toxic compounds into your home and the chimney. Do not burn compressed logs made of wax-impregnated sawdust or logs with chemical additives; 100% compressed-sawdust logs can be used with caution.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWarranty and service\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe Osburn limited lifetime warranty applies to the original retail purchaser only and is non-transferable. The warranty applies to normal residential use only. Proof of purchase (dated bill of sale), model name, and serial number are required for any warranty claim. Online registration is recommended at osburn-mfg.com but not required if a dated invoice is retained.\u003c\/p\u003e\n\n\u003ch3\u003eCoverage by component\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eComponent\u003c\/span\u003e\u003cspan\u003eParts\u003c\/span\u003e\u003cspan\u003eLabor\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustion chamber welds, cast-iron door frame\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCeramic glass, plating manufacturing defects, convector air-mate\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eSurrounds, heat shields, trims, C-Cast baffle, secondary air tubes\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e7 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHandle assembly, glass retainers, air control mechanism\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e3 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eRemovable carbon-steel firebox components\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eBlower, heat sensors, switches, rheostat, wiring, electronics\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e2 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePaint (peeling), gaskets, insulation, ceramic fiber blankets, and other options\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eReplacement parts under warranty\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e90 d\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eA one-time replacement limit applies to all parts with lifetime coverage. Warranty is void if the unit is used to burn anything other than seasoned cordwood, or if it is not operated according to the owner's manual. Damage caused by misuse, improper installation, lack of maintenance, overfiring, downdrafts, venting problems, or under-estimated heating area is not covered. Improper installation by anyone other than an authorized qualified technician voids the warranty.\u003c\/p\u003e\n\n\u003cp\u003eWarranty claims are made through your Osburn dealer and remain subject to SBI\/Osburn inspection, approval, and the current written warranty. Kaminos is the retailer for this insert and supports buyers through purchase; final warranty approval rests with SBI as the manufacturer. SBI's parts network is well-stocked — replacement bricks, baffle, secondary tubes, glass, gaskets, and blower are openly available at fair prices through multiple parts vendors.\u003c\/p\u003e\n\n\u003cp class=\"warranty-note\"\u003eOsburn may require photos or returned parts to support a claim; repair work covered by warranty requires prior manufacturer approval.\u003c\/p\u003e\n\n\u003cp class=\"warranty-note\"\u003eCoverage details can change by component and warranty revision; the current Osburn warranty controls.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCompare with\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eOsburn Inspire 2000-I Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eSame firebox class — 2.4 ft³, same 75,000 BTU\/hr maximum, same 14,200–44,500 BTU\/hr tested range, same 500–2,100 sq ft heating range, same 72% HHV efficiency, same 2.3 g\/hr emissions, same 8-hour burn time, same 20-inch log capacity. Two key differences: blower (Inspire 176 CFM vs 2000-I 144 CFM) and aesthetic (Inspire modern flush picture-window vs 2000-I traditional cast-iron with configurable trims). The 2000-I requires meaningfully less masonry depth (15 3\/4\" vs Inspire's 20 3\/4\"). Choose the 2000-I for shallower masonry openings and traditional configurable aesthetic; choose the Inspire for deeper openings, more powerful blower, modern picture-window aesthetic, and the optional NightFlame glass.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eOsburn 1700-I Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eStep-down sibling in the Osburn insert line. Smaller 1.86 ft³ firebox, 65,000 BTU\/hr maximum, 500–1,800 sq ft heating range, 18-inch log capacity, 7-hour maximum burn, same 144 CFM blower, 68% HHV efficiency, 1.7 g\/hr emissions. Smaller masonry opening required (21 1\/2\" × 27 1\/2\" × 12 7\/8\") — fits even shallower openings the 2000-I won't. Choose the 1700-I for smallest masonry openings and smaller spaces; choose the 2000-I for larger firebox, longer log capacity, and slightly higher published efficiency.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eOsburn 3500-I Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eStep-up sibling in the Osburn insert line. Larger 3.5 ft³ firebox, 110,000 BTU\/hr maximum, 1,000–2,700 sq ft heating range, 22-inch log capacity, 10-hour maximum burn, 71% HHV efficiency, 1.6 g\/hr emissions, same 144 CFM blower. Loads over both width and depth (the deepest firebox in the Osburn insert line at 20 1\/8\"). Larger minimum masonry width (31\") but similar depth requirement. Choose the 3500-I for primary heat above 2,000 sq ft, longer log capacity, north-south loading flexibility, and longer burn cycles; choose the 2000-I for shallower masonry depth and lower BTU output appropriate for 1,500–2,000 sq ft spaces.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003ePacific Energy Super LE Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eCross-brand competitor in the same size class. Comparable firebox volume and heating capacity, Pacific Energy's well-regarded sealed-firebox technology with single-lever non-cat operation, premium build, higher price. The most common cross-shop with the 2000-I for buyers weighing premium Pacific Energy fit-and-finish against the SBI dealer\/parts accessibility and the Osburn price point.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cp class=\"pull\"\u003eThe 2000-I is the configurable, shallow-depth medium-large insert in the Osburn line — same 2.4 ft³ firebox class as the Inspire 2000-I, but fits openings the Inspire's 20 3\/4\" depth requirement won't take. Traditional cast-iron front face with the most-configurable trim package in the line: faceplate size, trim color, door overlay color. If the masonry opening is medium-depth and the traditional aesthetic fits the room, this is the right one.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Osburn","offers":[{"title":"Black \/ Black","offer_id":49276828811457,"sku":"OB02016+OA10237+AC03410+OA10122","price":3539.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Brushed Nickel","offer_id":49276828876993,"sku":"OB02016+OA10237+AC03410+OA10123","price":3539.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Large Black","offer_id":49276829204673,"sku":"OB02016+OA10237+AC03411+OA10128","price":3589.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Large Brushed Nickel","offer_id":49276829270209,"sku":"OB02016+OA10237+AC03411+OA10129","price":3589.0,"currency_code":"USD","in_stock":true},{"title":"Brushed nickel \/ Black","offer_id":49276828844225,"sku":"OB02016+OA10238+AC03410+OA10122","price":3759.0,"currency_code":"USD","in_stock":true},{"title":"Brushed nickel \/ Brushed Nickel","offer_id":49276828909761,"sku":"OB02016+OA10238+AC03410+OA10123","price":3759.0,"currency_code":"USD","in_stock":true},{"title":"Brushed nickel \/ Large Black","offer_id":49276829237441,"sku":"OB02016+OA10238+AC03411+OA10128","price":3809.0,"currency_code":"USD","in_stock":true},{"title":"Brushed nickel \/ Large Brushed Nickel","offer_id":49276829302977,"sku":"OB02016+OA10238+AC03411+OA10129","price":3809.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/osburn-2000-i-wood-insert-front-OB02016_45143edc-e732-4da7-907b-71b36deb5976.webp?v=1748281584"},{"product_id":"osburn-inspire-2000-i-wood-insert","title":"Osburn Inspire 2000-I Wood Insert","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #231F20; line-height: 1.55; width: 100%; max-width: 100%; box-sizing: border-box; margin: 0; padding: 0; font-size: 16px; overflow-wrap: break-word; word-wrap: break-word; word-break: normal;\"\u003e\n\n\u003cstyle\u003e\n  .km-desc, .km-desc * { box-sizing: border-box; max-width: 100%; }\n  .km-desc { width: 100%; }\n  .km-desc p { margin: 0 0 14px; }\n  .km-desc h3 { font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px; font-weight: 600; color: #9B774D; margin: 22px 0 10px; }\n  .km-desc .spec-list { margin: 12px 0 0; }\n  .km-desc .spec-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .spec-row:first-child { border-top: 1px solid rgba(75,72,75,0.35); padding-top: 14px; }\n  .km-desc .spec-label { font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px; font-weight: 600; color: #4B484B; margin-bottom: 6px; }\n  .km-desc .spec-value { font-weight: 600; font-size: 15px; color: #231F20; margin-bottom: 6px; line-height: 1.35; }\n  .km-desc .spec-meaning { color: #4B484B; font-size: 13px; line-height: 1.55; }\n  @media (min-width: 720px) {\n    .km-desc .spec-row { display: grid; grid-template-columns: 38% 30% 1fr; gap: 16px; align-items: start; padding: 12px 0; }\n    .km-desc .spec-label { margin-bottom: 0; align-self: center; }\n    .km-desc .spec-value { margin-bottom: 0; font-size: 14px; align-self: center; }\n    .km-desc .spec-meaning { font-size: 13px; }\n    .km-desc .spec-row:first-child { padding-top: 12px; }\n  }\n  .km-desc .data-row { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; padding: 12px 0; border-bottom: 1px solid rgba(75,72,75,0.12); align-items: baseline; font-size: 13px; }\n  .km-desc .data-head + .data-row { border-top: 1px solid rgba(75,72,75,0.35); }\n  .km-desc .data-row .data-label { color: #4B484B; line-height: 1.4; }\n  .km-desc .data-row .data-val { font-weight: 600; color: #231F20; text-align: right; min-width: 56px; }\n  .km-desc .data-head { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; padding-bottom: 8px; font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px; font-weight: 600; color: #4B484B; }\n  .km-desc .data-head span:nth-child(2), .km-desc .data-head span:nth-child(3) { text-align: right; min-width: 56px; }\n  .km-desc ul { list-style: none; padding: 0; margin: 10px 0 14px; }\n  .km-desc ul li { padding: 4px 0 4px 18px; position: relative; line-height: 1.55; }\n  .km-desc ul li:before { content: \"—\"; position: absolute; left: 0; color: #9B774D; font-weight: 500; }\n  .km-desc .compare-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .compare-row:last-child { border-bottom: 0; }\n  .km-desc .compare-name { font-weight: 600; color: #231F20; display: inline-block; padding-bottom: 1px; }\n  .km-desc .compare-orient { color: #4B484B; margin-top: 4px; font-size: 13px; line-height: 1.5; }\n  .km-desc .pull { font-style: italic; font-size: clamp(16px, 4.2vw, 22px); line-height: 1.4; color: #231F20; border-left: 2px solid #9B774D; padding: 0 0 0 16px; margin: 32px 0 16px; }\n  .km-desc .lede { font-size: clamp(16px, 4vw, 22px); line-height: 1.4; letter-spacing: -0.2px; font-weight: 400; color: #231F20; margin: 0 0 24px; }\n  .km-desc .warranty-note { font-size: 12px; color: #4B484B; font-style: italic; margin-top: 14px; }\n  .km-desc details { border-top: 1px solid rgba(75,72,75,0.18); margin: 0; padding: 0; }\n  .km-desc details:last-of-type { border-bottom: 1px solid rgba(75,72,75,0.18); }\n  .km-desc details \u003e summary { list-style: none; cursor: pointer; padding: 18px 32px 18px 0; position: relative; font-size: clamp(16px, 4.2vw, 20px); line-height: 1.3; font-weight: 500; color: #231F20; letter-spacing: -0.2px; }\n  .km-desc details \u003e summary::-webkit-details-marker { display: none; }\n  .km-desc details \u003e summary::after { content: \"+\"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-size: 22px; font-weight: 300; color: #9B774D; line-height: 1; }\n  .km-desc details[open] \u003e summary::after { content: \"−\"; }\n  .km-desc details \u003e summary:focus-visible { outline: 2px solid #9B774D; outline-offset: 4px; }\n  .km-desc details \u003e .acc-body { padding: 0 0 28px 0; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"km-desc\"\u003e\n\n\u003cp class=\"lede\"\u003eA 2.4 ft³ non-catalytic medium-large wood insert built around a wide-format 20 1\/4\" × 9 1\/2\" picture-window ceramic glass with a clean, modern flush-mount profile — no cast-iron decorative faceplate, no louvers, no columns. EPA 2020 cordwood certified at 2.3 g\/hr particulate emissions, 72% HHV efficiency, 75,000 BTU\/hr maximum output, 20-inch maximum east-west log capacity, up to 8-hour maximum burn time, and a powerful 176 CFM heat-activated blower included as standard. Three configurable faceplate options at order: a 32\" × 50\" cuttable, a 30\" × 25 1\/8\" U-shape narrow, or a 30\" × 26 7\/8\" 4-sided narrow. Optional NightFlame semi-transparent ceramic glass conceals the firebox when the fire is out.\u003c\/p\u003e\n\n\u003cdetails open\u003e\n\u003csummary\u003eWho this is for\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003ch3\u003eRight buyer\u003c\/h3\u003e\n\u003cp\u003eOwners of a working masonry fireplace with a medium-to-large opening who want to convert an inefficient open hearth into a serious primary heat source — up to 2,100 sq ft of zone heating capability with a 2.4 ft³ firebox, 20-inch log capacity, and an 8-hour maximum burn cycle. Reasonable insulation, access to seasoned hardwood at 15–20% moisture, and an existing masonry fireplace that meets the minimum opening dimensions (24 5\/8\" H × 29\" W × 20 3\/4\" D per manual) are the basic requirements.\u003c\/p\u003e\n\n\u003cp\u003eBuyers who want the modern, minimal, picture-window aesthetic — clean horizontal lines, large flush ceramic glass, no cast-iron decorative faceplate. The Inspire is the contemporary-design option in the Osburn insert lineup, designed to let the fire be the visual focus rather than the faceplate.\u003c\/p\u003e\n\n\u003cp\u003eBuyers heating 1,400–1,900 sq ft as primary winter heat in moderate climates, or 1,200–1,500 sq ft in cold climates and older homes. The Inspire's 2.4 ft³ firebox sits between the smaller 1700-I and the larger Matrix 2700 in firebox capacity, with the most powerful blower in the line shared with the Matrix 2700 (176 CFM).\u003c\/p\u003e\n\n\u003cp\u003eBuyers who want the option of NightFlame ceramic glass (sold separately). The optional ROBAX semi-transparent black glass conceals the interior of the firebox when not in use — the insert reads as a clean dark panel against the masonry. When a fire is burning, the glass becomes clear and the flames show through normally. A meaningful design upgrade for buyers who want the insert to disappear visually when not in use.\u003c\/p\u003e\n\n\u003cp\u003eBuyers who want the most powerful blower in the Osburn insert line. The 176 CFM heat-activated double-cage blower meaningfully outperforms the 144 CFM blowers used in the smaller and larger Osburn inserts. For an insert — where most of the firebox sits inside the masonry cavity — blower CFM is what gets the heat into the room.\u003c\/p\u003e\n\n\u003ch3\u003eWrong buyer\u003c\/h3\u003e\n\u003cp\u003eNot for buyers without an existing code-compliant masonry fireplace with a substantial opening. Wood inserts must be installed inside a lined masonry fireplace with a continuous stainless-steel chimney liner running the full height. This insert requires a 20 3\/4\" minimum depth — meaningfully deeper than smaller inserts and the most common reason this insert does not fit a shallower hearth. Not approved for factory-built (prefab) metal fireplaces, mobile homes, alcoves, or freestanding installation.\u003c\/p\u003e\n\n\u003cp\u003eNot for buyers who want a traditional cast-iron faceplate aesthetic. The Inspire is intentionally modern — no decorative louvers, no framing columns, no cast-iron detailing. Buyers wanting traditional styling should look at the Osburn Matrix 1900, Matrix 2700, or 3500-I.\u003c\/p\u003e\n\n\u003cp\u003eNot for buyers heating under 1,200 sq ft. The 2.4 ft³ firebox will overheat a smaller space and force you to run it inefficiently. For smaller spaces, step down to the Osburn 1700-I or Matrix 1900.\u003c\/p\u003e\n\n\u003cp\u003eNot for buyers expecting 10+ hour overnight burns. The 8-hour manufacturer maximum is achievable on a packed load of dense hardwood with the air shut down hard, but useful heat from a packed load is realistically 6–7 hours. For longer burns, consider a catalytic insert.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eAt a glance\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cdiv class=\"spec-list\"\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion technology\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNon-catalytic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eSecondary-air tubes reignite smoke gases. No catalyst to replace; one air-control lever; simpler operation than a cat insert but shorter low-and-slow burn times.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eInstallation type\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMasonry insert\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInstalls inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. Not approved for factory-built fireplaces, mobile homes, alcoves, or freestanding installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFirebox volume\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e2.4 ft³ overall \/ 1.95 ft³ EPA\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Medium-large firebox sized for primary zone heating across 500–2,100 sq ft. The overall figure includes a buffer zone above the EPA loading line; the 1.95 ft³ figure is the usable loading volume used during EPA emissions certification.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum heat output\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e75,000 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePeak output on dry cordwood, transient. Sustained output across a burn cycle is substantially lower.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eTested output range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e14,200–44,500 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer CSA B415.1-10 stack-loss method. The realistic operating band buyers should plan around — from a steady low burn at the bottom up through strong sustained output in the upper end.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eHeating range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e500–2,100 sq ft\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer's stated range. Real-world comfort sizing for primary heat is roughly 1,400–1,900 sq ft in moderate climates and lower in cold climates or older homes — depends on insulation, layout, climate, ceiling height, fuel quality, and installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eAverage efficiency\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e72% HHV \/ 77% LHV\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003e79% optimum overall efficiency at low burn rate; 76% optimum heat transfer efficiency. HHV is the federal standard. Government incentives may apply by jurisdiction and installation date.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eParticulate emissions\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e2.3 g\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manufacturer's published spec table. EPA 2020 limits are 2.0 g\/hr crib-wood or 2.5 g\/hr cordwood. The Inspire is compliant with the federal cordwood standard.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum burn time\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUp to 8 hours\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer maximum at the lowest air setting. Useful heat through a burn cycle is realistically 6–7 hours.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eRecommended log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e16 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Most firewood suppliers cut to this length.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e20 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003e4-inch margin over the recommended length — meaningful for buyers with access to longer-cut firewood. Logs load across the width of the firebox, sides visible from the door.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eConstruction\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eCarbon steel, steel door frame\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eWelded carbon-steel firebox with a single glass door in a steel frame. 3\/16\" body, 3\/8\" top — the heaviest top plate in the Osburn insert line. Lifetime warranty on the combustion-chamber welds.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eAesthetic\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eModern flush, picture-window\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eNo cast-iron decorative faceplate, no patterned louvers, no framing columns. The Inspire is the contemporary-design option in the Osburn insert line, designed to let the fire be the visual focus.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eGlass\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e20 1\/4\" × 9 1\/2\", ceramic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eWide-format horizontal ceramic glass with air-wash. Replacement glass must be the same ceramic specification — tempered or ordinary glass will not withstand the operating temperatures. Optional NightFlame semi-transparent black ceramic glass (SBI AC02775) available — conceals the firebox interior when fire is out.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBlower\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eIncluded, up to 176 CFM\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Powerful double-cage heat-activated blower with thermodisc auto-on. The most powerful blower in the Osburn insert line, shared with the Matrix 2700. Multiple owner reports note the blower is loud at higher settings — a recurring observation across this platform.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBaffle\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eC-Cast\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eRigid aluminosilicate fiber baffle rated above 2,000 °F.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFlue connection\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e6 in (insert liner)\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eTop of the unit. Requires a continuous stainless-steel chimney liner running the full height of the masonry chimney. Liner must conform to UL 1777 (USA), CAN\/ULC-S635, or CAN\/ULC-S640 (Canada). Per manual, minimum chimney height 12 feet. Sold separately.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion chamber\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e21\" W × 16 3\/4\" D × 11 3\/4\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInside firebox dimensions per manufacturer spec. Designed for east-west loading across the width of the firebox.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDoor opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e20\" W × 8 1\/4\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eWide horizontal loading door opening — accommodates 20-inch logs loaded east-west.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eOverall dimensions\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e28 1\/2\" W × 20 7\/8\" D × 24 3\/8\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eOverall appliance dimensions before the faceplate. Final installed width depends on the faceplate configuration chosen at order.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMinimum masonry opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e24 5\/8\" H × 29\" W × 20 3\/4\" D\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Substantial opening required — measure carefully before ordering. The 20 3\/4\" minimum depth is deeper than most older or smaller fireplaces.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eShipping weight\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e435 lb\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePlan for multi-person handling — three-person minimum is reasonable for this weight class. Remove loose internal components as appropriate during installation to reduce handling weight.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMobile home approved\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNo\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eNot certified for mobile-home installation under any configuration.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCountry of origin\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMade in Canada\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufactured by Stove Builder International (SBI) in Saint-Augustin-de-Desmaures, Quebec.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhere it can go\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe Inspire 2000-I is approved only for installation inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. It is not approved for installation in factory-built (prefab) metal fireplaces, in mobile or manufactured homes, in alcoves, or as a freestanding unit. The masonry fireplace and chimney must be inspected before installation for cracks, loose mortar, creosote, blockage, or other signs of deterioration.\u003c\/p\u003e\n\n\u003ch3\u003eMinimum masonry opening\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eDimension\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHeight\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e24 5\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eWidth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e29\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eDepth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e20 3\/4\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eIf a fresh-air intake is being installed, add at least 4 inches to the minimum width. Plan for a small installation margin above the insert to seat the liner adapter — an opening exactly at the minimum will be a tight install. Measure carefully before ordering. The 20 3\/4\" minimum depth is meaningfully deeper than smaller Osburn inserts and is the most common reason this insert does not fit a shallower hearth.\u003c\/p\u003e\n\n\u003ch3\u003eFaceplate options\u003c\/h3\u003e\n\u003cp\u003eThe Inspire 2000-I requires one faceplate selection at order. Three options are available — buyer picks one to complete the unit:\u003c\/p\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eConfiguration\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eSize\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCuttable faceplate (16 GA)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e32\" × 50\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eNarrow faceplate (U-shape, 3-sided)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e30\" × 25 1\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eNarrow faceplate (4-sided)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e30\" × 26 7\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eThe 32\" × 50\" cuttable faceplate is the broadest-coverage option — 16-gauge steel, edges can be trimmed to contour an arched fireplace or to minimize visible flashing. The two narrow faceplates are designed for tighter masonry openings where minimal trim coverage is preferred: the U-shape leaves the bottom open, the 4-sided wraps fully around the insert. Choose the configuration that matches the masonry opening and the look you want — this is a one-time decision configured at order, not field-swappable.\u003c\/p\u003e\n\n\u003ch3\u003eClearances to combustibles\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eSurface\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eAdjacent combustible side wall\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e16\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eFaceplate to combustible side mantel\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e9\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eFaceplate to combustible top mantel\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eTop of insert to combustible shelf\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePlatform \/ floor protection to ceiling\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e84\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eThe certification label on the back of the insert always overrides clearance figures published elsewhere. Reduced clearances are not available by means of heat shields on this insert — the figures above are the binding minimums.\u003c\/p\u003e\n\n\u003ch3\u003eFloor protection\u003c\/h3\u003e\n\u003cp\u003eFloor protection requirements depend on whether the existing masonry hearth is raised above the surrounding combustible floor and whether it extends sufficiently in front of the appliance. The manual requires a non-combustible floor protector extending at least 16 inches in front of the unit in the USA or 18 inches in Canada, measured from the door opening. If the masonry hearth is level with or only slightly raised above the surrounding combustible floor, an R-value floor protector may be required per the manual's floor-protection worksheet. The manual includes a thermal-resistance lookup table for common floor protection materials (brick, cement board, ceramic tile, marble) to calculate the required R-value combination. Tile alone is not sufficient — the manual requires a continuous non-combustible sheet beneath any tile installation. Final hearth protection must be calculated from the manual's floor-protection worksheet and approved by the installer\/AHJ.\u003c\/p\u003e\n\n\u003ch3\u003eChimney and liner\u003c\/h3\u003e\n\u003cp\u003eThe Inspire 2000-I requires a continuous 6-inch stainless-steel chimney liner extending from the insert flue collar to the top of the chimney. The liner must conform to ULC S635, CAN\/ULC-S640 (Canada) or UL 1777 (USA) and be rated for solid fuel. The minimum liner height is 12 feet, subject to installer verification, certification label, draft conditions, and local code. The chimney must extend at least 3 feet above the highest point of contact with the roof and at least 2 feet above any roof line or obstacle within 10 feet horizontally.\u003c\/p\u003e\n\n\u003cp\u003eThe Inspire 2000-I performs best with a 6-inch stainless-steel chimney liner. In the USA, use a 6-inch liner listed to UL 1777. In Canada only, connection to a chimney liner of at least 5 inches may be permitted if it properly vents combustion gases, the total masonry chimney height is greater than 20 feet, and the application is verified and authorized by a qualified installer. The insert is not approved for a positive flue connection to clay tile — a continuous stainless liner is required.\u003c\/p\u003e\n\n\u003cp\u003eIf the existing fireplace's throat damper is to remain, it must be locked open to clear the liner; otherwise the damper plate must be removed. A sheet-metal block-off plate sealed at the damper level (or, in Canada per CSA B365, mineral wool packing around the liner) is recommended at the throat to reduce cold-air backdraft and to allow the insert to deliver rated performance — without it, jacket-recovered heat is lost into the smoke chamber. An insulated liner (or pre-insulated liner with a wrap) improves draft and reduces creosote, and is required by code in some jurisdictions for clearance reasons.\u003c\/p\u003e\n\n\u003ch3\u003eOutside air\u003c\/h3\u003e\n\u003cp\u003eAn optional 5-inch fresh-air intake kit is available for code jurisdictions requiring outside combustion air or for tight new-construction homes with mechanical ventilation. In conventional homes the manual identifies room air as the safest and most reliable supply for combustion; almost all houses have enough natural leakage to provide what the insert needs. A smoke detector and carbon monoxide detector are required in the room where the insert is installed.\u003c\/p\u003e\n\n\u003ch3\u003eCode compliance\u003c\/h3\u003e\n\u003cp\u003eCode compliance for any specific installation is determined by the local Authority Having Jurisdiction. Manufacturer listings cover what the insert is approved for; the AHJ approves what is permitted at your address. A WETT (Canada), NFI, or CSIA (USA) certified installer is strongly recommended and frequently required by code, permit, or insurance. In Canada the CSA B365 standard applies; in the USA, ANSI NFPA 211 applies. Confirm local requirements before purchasing — particularly in EPA non-attainment counties and in HOA jurisdictions where new wood-burning installs may be restricted.\u003c\/p\u003e\n\n\u003ch3\u003eCalifornia Proposition 65\u003c\/h3\u003e\n\u003cp\u003eThis product can expose you to chemicals including carbon monoxide, which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.P65warnings.ca.gov.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat's in the box, what you'll add\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003ch3\u003eShips with the insert\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOsburn Inspire 2000-I wood insert (OB02045) with welded carbon-steel firebox and single glass door in steel frame\u003c\/li\u003e\n\u003cli\u003eConfigured at order with required faceplate selection — see \"Where it can go\" for the three options\u003c\/li\u003e\n\u003cli\u003e176 CFM heat-activated double-cage blower assembly with thermodisc auto-on\u003c\/li\u003e\n\u003cli\u003eC-Cast baffle and stainless-steel secondary-air tube assembly\u003c\/li\u003e\n\u003cli\u003eMoulded refractory bricks lining\u003c\/li\u003e\n\u003cli\u003eRemovable air-control handle\u003c\/li\u003e\n\u003cli\u003eLiner fixation brackets and hardware\u003c\/li\u003e\n\u003cli\u003eOwner's manual and product documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSold separately\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e6-inch continuous stainless-steel chimney liner kit (UL 1777, CAN\/ULC-S635, or CAN\/ULC-S640) — required for installation, sized to the chimney height\u003c\/li\u003e\n\u003cli\u003eHearth extension or floor protector sized per manual specifications, extending at least 16 inches in front of the unit in the USA, 18 inches in Canada\u003c\/li\u003e\n\u003cli\u003eSheet-metal block-off plate, high-temp silicone, and mineral wool insulation — effectively required in practice for the insert to deliver rated performance\u003c\/li\u003e\n\u003cli\u003eOptional NightFlame semi-transparent black ceramic glass (SBI AC02775) — conceals the firebox interior when the fire is out; becomes clear when burning\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch fresh-air intake kit (SBI AC01298) — for code jurisdictions requiring outside combustion air or for tight new-construction homes\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch × 4' insulated flex pipe for fresh-air intake (SBI AC02090) — HVAC type, ULC S110 or UL 181 class 0 or class 1\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch fresh-air intake register with airtight damper (SBI AC01349) — do not close while in use\u003c\/li\u003e\n\u003cli\u003eOptional liner hook-up system (SBI AC02006) — simplifies liner-to-flue-collar connection\u003c\/li\u003e\n\u003cli\u003eOptional offset liner adapter (SBI AC01214) — for installations where the chimney throat geometry requires offset connection\u003c\/li\u003e\n\u003cli\u003eOptional tempered glass hearth pad 10mm 18\" × 50\" (SBI AC02760)\u003c\/li\u003e\n\u003cli\u003ePin-type wood moisture meter — not optional in practice\u003c\/li\u003e\n\u003cli\u003eFlue thermometer — strongly recommended for insert installations since stove-top temperature isn't accessible\u003c\/li\u003e\n\u003cli\u003eInstallation by an authorized qualified technician (WETT, NFI, or CSIA certified) — required for warranty coverage and often required by code, permit, or insurance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow it actually performs\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe 75,000 BTU\/hr maximum is a peak rating, transient, achieved on dry cordwood at high loading density and short reload intervals. It is real, but it is a peak rating, not the average output across a full burn cycle of normal operation. The figure that matters for daily life is the sustained output across a full burn cycle, which lands in the 14,200–44,500 BTU\/hr band per the CSA B415.1-10 stack-loss method — a wide range covering shoulder-season heating on the low end and strong sustained output for cold-snap heating on the high end.\u003c\/p\u003e\n\n\u003cp\u003eA realistic burn cycle from a packed load of well-seasoned hardwood produces a 45-minute warm-up, 2–3 hours of strong sustained heat once the firebox and surrounding masonry come up to temperature, then a gradual decline over the next 3–4 hours with a coal bed remaining. Total useful heat from one full pack is realistically 6–7 hours, occasionally approaching the 8-hour manufacturer maximum with dense hardwood, mild weather, and a packed coal bed. Multiple owner reports describe the insert easily heating 1,500–2,400 sq ft homes when the masonry chimney is up to temperature.\u003c\/p\u003e\n\n\u003cp\u003eThe masonry around the insert acts as a thermal mass. Once the surrounding brick or stone is up to temperature, it continues radiating heat into the room well after the active fire has died down. This is one of the underappreciated benefits of an insert versus a freestanding stove — the masonry stores and releases heat on its own cycle. The first hour from a cold start is the slowest because that mass has to come up to temperature; once it's hot, response time is faster.\u003c\/p\u003e\n\n\u003cp\u003eThe 176 CFM heat-activated double-cage blower is what gets the heat into the room. Because most of the insert's firebox sits inside the masonry cavity, the radiant heat that would otherwise reach the room from a freestanding stove is partly absorbed by the surrounding brick. The convection jacket around the firebox captures that heat and the blower pushes it out into the room. The 176 CFM rating is the strongest in the Osburn insert line — shared with the Matrix 2700. With the switch in AUTO, the blower starts automatically once the insert is hot enough and stops when it cools — set the position and forget about it. With the switch in MANUAL, the blower runs continuously regardless of insert temperature. Allow the insert to reach operating temperature (approximately one hour from a cold start) before turning the blower to MANUAL.\u003c\/p\u003e\n\n\u003cp\u003eThe Inspire's blower is the most consistent complaint across owner reports — multiple buyers describe it as loud at higher settings, with several specifically noting they don't run it at full speed because of the noise. The Inspire 2000-I does not include a rheostat for variable speed control (unlike the smaller 1700-I and Matrix 1900) — it is a single-speed blower with AUTO\/MANUAL\/OFF control only. If sound sensitivity is a concern, this is the most-cited owner caution on this model.\u003c\/p\u003e\n\n\u003cp\u003eAir-wash glass stays largely clear during proper hot burns at moderate-to-high air settings. At low burn rates with marginally seasoned wood, the glass will tar. This is universal to non-catalytic inserts, not specific to Osburn. The wide-format glass — 20 1\/4\" × 9 1\/2\" — is the visual centerpiece of the Inspire, which makes glass cleanliness more visually important than on smaller inserts.\u003c\/p\u003e\n\n\u003cp\u003eThe optional NightFlame glass deserves a specific note: in the off state, the semi-transparent black ceramic conceals the firebox interior so the insert reads as a clean dark panel against the masonry. When a fire is burning, the glass becomes clear and flames show normally. A meaningful aesthetic upgrade for buyers who want the insert to disappear visually when not in use.\u003c\/p\u003e\n\n\u003cp\u003ePower-failure operation: the insert continues to burn safely without electricity — only the blower stops. Heat distribution drops noticeably without the blower because the masonry cavity absorbs most of the firebox radiation. Plan accordingly if you're buying this insert specifically as a power-outage heat source.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eTrade-offs to know\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlower noise is the dominant owner complaint.\u003c\/strong\u003e Across owner reviews, the most consistent observation is that the 176 CFM blower is loud at higher settings. Several owners explicitly state they avoid running it at full speed because of the noise. Unlike the smaller Osburn inserts with rheostat speed control, the Inspire's blower has only AUTO\/MANUAL\/OFF — no variable speed. If sound sensitivity is a concern, this is the trade-off to know going in. The blower delivers strong heat distribution, but the volume of air it moves is the trade-off for the audibility.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLarge appliance, large masonry opening required.\u003c\/strong\u003e The Inspire's minimum opening of 24 5\/8\" H × 29\" W × 20 3\/4\" D is substantial — particularly the 20 3\/4\" depth requirement, which is deeper than most older or smaller fireplaces. Measure carefully before ordering — this is the most common reason an Inspire purchase falls apart at the installation stage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eModern aesthetic, no decorative elements.\u003c\/strong\u003e The Inspire is intentionally minimal — no cast-iron faceplate, no patterned louvers, no framing columns. If you want traditional cast-iron detailing, this isn't it. The trade-off is that the fire is the visual focus, which is exactly what some buyers want.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFaceplate is a one-time decision, configured at order.\u003c\/strong\u003e Three options at the order stage: 32\" × 50\" cuttable, 30\" × 25 1\/8\" U-shape, or 30\" × 26 7\/8\" 4-sided. Once selected, not field-swappable. Choose carefully based on the masonry opening you're installing into — the cuttable option provides the broadest coverage; the narrow options for tighter openings.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eEfficiency is not the problem here.\u003c\/strong\u003e At 72% HHV, the Inspire is slightly higher on published HHV efficiency than the Osburn 1700-I and 3500-I. The real trade-offs are the modern aesthetic, substantial masonry-opening requirement, 2.3 g\/hr emissions, and blower noise — not efficiency.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eEmissions at the upper end of EPA compliance.\u003c\/strong\u003e The 2.3 g\/hr particulate emissions rate is well within the EPA 2020 cordwood limit (2.5 g\/hr) but higher than the 1.2 g\/hr Matrix 2700 or the 1.5 g\/hr Matrix 1900. In EPA non-attainment counties or jurisdictions with stricter local emission rules, this is worth comparing against the Matrix line.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e8-hour maximum burn is large-class, not long-burn class.\u003c\/strong\u003e A 2.4 ft³ non-cat insert gives you meaningful primary-heat capability across 1,400–1,900 sq ft, with realistic 6–7 hour burn cycles. If you want true 10+ hour overnight burns, consider a catalytic insert with a real low-output mode.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe 2,100 sq ft figure is aspirational.\u003c\/strong\u003e The most consistent owner regret across large inserts is buying for the high end of the manufacturer's heating range. Several Inspire owners report heating 1,500–2,400 sq ft homes successfully, but those are not universal results — depends heavily on insulation, climate, and house layout.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe blower is essential, not optional.\u003c\/strong\u003e Unlike a freestanding stove where the blower meaningfully improves heat distribution, on an insert the blower is what gets the heat into the room at all. Most of the firebox sits inside the masonry cavity, which absorbs radiant heat. The insert will run safely without the blower (useful in a power outage), but day-to-day heat into the room depends on the blower being on and working.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e435 lb shipping weight is heavy.\u003c\/strong\u003e Plan for three-person handling minimum and verify the installation route — stairs, narrow doorways, and tight masonry access make the install meaningfully harder than for smaller inserts.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLiner, block-off plate, and labor are not in the appliance price.\u003c\/strong\u003e The insert is the appliance; the chimney liner, the block-off plate, the insulation wrap, and the professional installation are separate purchases that need to be planned for. Older or taller chimneys, offset flues, and damper-frame removal add to install complexity. Skipping the liner, the block-off plate, or the insulation wrap saves money up front and costs measurable performance and creosote durability after.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eShipping damage shows up in reviews.\u003c\/strong\u003e Multiple owner reports cite broken bricks, broken glass, scratched legs, or missing components on arrival. SBI's parts network handles replacements but the experience can be frustrating. Inspect the shipment thoroughly on delivery before signing off — document any damage with photos before the installer leaves.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood quality is not negotiable.\u003c\/strong\u003e The most common \"the insert doesn't heat\" complaint comes from owners running marginally seasoned wood. Secondary combustion works best with dry, properly seasoned fuel, ideally around 15–20% moisture. A pin-type moisture meter is the single best accessory for this insert.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNightFlame glass is a meaningful upcharge.\u003c\/strong\u003e The optional ROBAX semi-transparent ceramic glass is a real aesthetic feature, not marketing, but it adds cost. Decide whether the off-state appearance matters enough to justify the upgrade before ordering — it's a meaningful price addition.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eOperating reality\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eFirst burns.\u003c\/strong\u003e The first three to six fires release paint VOCs as the high-temperature stove paint cures. The smell can be strong; ventilate the room well and avoid prolonged exposure during cure-in. Run the insert hot and expect the smell to disappear permanently after the cure-in.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLighting.\u003c\/strong\u003e Per the manual, the recommended method is the EPA loading procedure for cleanest combustion: place two small pieces in the bottom in a reverse-V shape, two medium-size pieces in an east-west orientation in the back over the reverse V, and a big piece in the front over the reverse V. Leave air space between pieces. Light, leave the door slightly ajar for about 5 minutes during light-off; close once the fire is well established. The manual also describes alternative methods (conventional bottom-up, top-down, two-parallel-logs).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAir control.\u003c\/strong\u003e Single-lever, located below the ash shelf. Push the handle to one position for HIGH (full air) and the opposite position for LOW (minimal air). Full open at light-off; gradually closed only after the load is fully engaged and stable secondary flames are established. Closing too fast and the fire smolders. A flue thermometer is strongly recommended; without one, you are guessing at draft, burn rate, and overfire risk.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlower switch positions.\u003c\/strong\u003e The 176 CFM blower assembly has a three-position switch: (1) AUTO — blower starts when the insert is hot enough and stops when it cools down (thermodisc-controlled); (2) OFF — blower stopped, prevented from starting automatically; (3) MANUAL — runs continuously regardless of insert temperature. Use AUTO for normal operation; use MANUAL only when you want continuous airflow regardless of temperature. Allow the insert to reach operating temperature (approximately one hour from cold start) before turning the blower to MANUAL.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eReload cadence.\u003c\/strong\u003e 3–4 hours between reloads in active heating use; up to 7 hours for a final overnight pack with the air shut hard. Rake remaining charcoal toward the front of the firebox before loading — this concentrates the coals near where most of the combustion air enters and helps ignite the new load. Place the new load on and at the back of the embers. Open the air for a minute or two before opening the door, open the door slowly to avoid smoke rollout, load, close the door, and run the air open until the load is fully engaged before reducing gradually. Turn the blower OFF before opening the door fully to reduce ash disturbance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBurn in cycles, not single-log feeds.\u003c\/strong\u003e The manual is explicit: do not attempt to produce steady heat output by placing a single log on the fire at regular intervals. Always place at least three (preferably more) pieces on the fire at a time so the heat radiated from one piece helps ignite the pieces next to it. Each load should provide several hours of heating.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCarbon monoxide watch.\u003c\/strong\u003e Per the manual, if the firebox no longer shows flame but still contains unburned logs, check outside for smoke from the chimney. Smoke without flame means the fire is air-starved and CO levels are rising. Open the door slightly, move the logs with a poker, create a passage for air by making a trench in the ember bed, and add small kindling-size pieces to restart combustion.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAsh management.\u003c\/strong\u003e The Inspire uses a hollow-bottom firebox; ash is scooped manually from the front. Empty ash every 2–3 days during full-time heating. The best time to remove ash is in the morning after an overnight fire when the insert is relatively cool but there is still some chimney draft to draw ash dust into the insert rather than into the room. Always dispose of ash in a tightly covered metal container on a non-combustible surface, well away from combustible materials — ash retains hot embers for days and releases carbon monoxide. Never store ashes indoors, in a non-metallic container, or on a wooden deck.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGlass cleaning.\u003c\/strong\u003e Damp newspaper dipped in cold ash, or a dedicated ceramic-glass cleaner. Daily wipe during low-burn weather; weekly during high-burn. Black streaks at the lower edge mean wet wood; black uniformly across the glass means burns are running too cool. Brown stains at the lower corners mean smoky combustion. Do not clean the glass when the insert is hot, and do not strike or slam the glass door shut. If running the optional NightFlame glass, the same cleaning rules apply.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoor and glass gaskets.\u003c\/strong\u003e Per the manual, the door gasket needs replacement when the paper-strip test fails: close the door on a strip of paper and try to pull it out; firm resistance means the gasket is sealing, easy pull means it's time to replace. Test all the way around the door. The latch mechanism is adjustable. Plan on every 3–5 seasons in regular use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAnnual chimney sweep.\u003c\/strong\u003e Per the manual, the chimney and liner should be cleaned and inspected at least once each year. Inspect every two months during the heating season until you know your creosote-formation rate; monthly is safer for new burners. If buildup reaches 1\/8 inch, sweep immediately. The baffle and secondary tubes lift out for sweep access. Insert installations make sweeping more involved than freestanding stoves — many owners hire a CSIA-certified sweep rather than doing it themselves.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood seasoning.\u003c\/strong\u003e Hardwood needs 12–24 months split, stacked off the ground, top-covered, with sun and wind on the sides. Don't trust supplier \"seasoned\" claims — use a pin-type moisture meter, split a piece in half, measure the fresh face. Manual target: 15–20% moisture. Wood above 25% will smolder, soot the glass, line the chimney with creosote, and undercut every published efficiency and emissions number on this page.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlower maintenance.\u003c\/strong\u003e Keep the blower intake and fins free of dust. Vacuum dust accumulation annually. Do not oil the blower unless the manual specifically calls for lubrication. Replacement blowers and related service parts are available through Osburn\/SBI dealers and parts channels if needed years out.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRefractory bricks and baffle.\u003c\/strong\u003e The intense heat of the fire can cause slight cracks in the refractory bricks — minor cracks do not reduce effectiveness. Inspect periodically and replace any wider cracks. The baffle and secondary tubes can be removed for sweep access and inspection. Operation with a cracked or missing baffle may cause unsafe temperatures and voids the warranty.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eChimney fire response.\u003c\/strong\u003e If a chimney fire occurs: close the insert door and the air-intake control, alert occupants, contact the fire department if assistance is needed, use a dry chemical fire extinguisher or baking soda or sand to control the fire (never water — it causes a dangerous steam explosion), and do not use the appliance again until the insert and chimney have been inspected by a qualified chimney sweep or fire-department inspector.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat never to burn.\u003c\/strong\u003e Per the manual and EPA fuel rules: no coal, garbage, yard waste, materials containing rubber or plastic, waste petroleum products, paint or paint thinners, asphalt products, painted or pressure-treated wood, railroad ties, manure or animal remains, plywood, particle board, paper products, asbestos materials, construction or demolition debris, salt-water driftwood, or unseasoned wood. This does not prohibit normal fire starters made from paper, cardboard, sawdust, wax, or similar substances when used only to start a fire. Burning prohibited materials destroys the firebox, voids the warranty, and releases toxic compounds into your home and the chimney. Do not burn compressed logs made of wax-impregnated sawdust or logs with chemical additives; 100% compressed-sawdust logs can be used with caution.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWarranty and service\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe Osburn limited lifetime warranty applies to the original retail purchaser only and is non-transferable. The warranty applies to normal residential use only. Proof of purchase (dated bill of sale), model name, and serial number are required for any warranty claim. Online registration is recommended at osburn-mfg.com but not required if a dated invoice is retained.\u003c\/p\u003e\n\n\u003ch3\u003eCoverage by component\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eComponent\u003c\/span\u003e\u003cspan\u003eParts\u003c\/span\u003e\u003cspan\u003eLabor\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustion chamber welds, cast-iron door frame\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCeramic glass, plating manufacturing defects, convector air-mate\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eSurrounds, heat shields, trims, C-Cast baffle, secondary air tubes\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e7 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHandle assembly, glass retainers, air control mechanism\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e3 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eRemovable carbon-steel firebox components\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eBlower, heat sensors, switches, rheostat, wiring, electronics\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e2 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePaint (peeling), gaskets, insulation, ceramic fiber blankets, and other options\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eReplacement parts under warranty\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e90 d\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eA one-time replacement limit applies to all parts with lifetime coverage. Warranty is void if the unit is used to burn anything other than seasoned cordwood, or if it is not operated according to the owner's manual. Damage caused by misuse, improper installation, lack of maintenance, overfiring, downdrafts, venting problems, or under-estimated heating area is not covered. Improper installation by anyone other than an authorized qualified technician voids the warranty.\u003c\/p\u003e\n\n\u003cp\u003eWarranty claims are made through your Osburn dealer and remain subject to SBI\/Osburn inspection, approval, and the current written warranty. Kaminos is the retailer for this insert and supports buyers through purchase; final warranty approval rests with SBI as the manufacturer. SBI's parts network is well-stocked — replacement bricks, baffle, secondary tubes, glass, gaskets, and blower are openly available at fair prices through multiple parts vendors.\u003c\/p\u003e\n\n\u003cp class=\"warranty-note\"\u003eOsburn may require photos or returned parts to support a claim; repair work covered by warranty requires prior manufacturer approval.\u003c\/p\u003e\n\n\u003cp class=\"warranty-note\"\u003eCoverage details can change by component and warranty revision; the current Osburn warranty controls.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCompare with\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eOsburn Matrix 2700 Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eStep-up sibling in the Osburn insert line. Slightly larger 2.5 ft³ firebox, 80,000 BTU\/hr maximum, 750–2,200 sq ft heating range, same 20-inch log capacity, same 176 CFM blower, 64% HHV efficiency, 1.2 g\/hr emissions (class-leading among Osburn inserts), 8-hour burn time. Carries the Osburn cast-iron decorative faceplate with configurable Black or Brushed Nickel door overlay — traditional Osburn aesthetic versus the Inspire's modern minimal look. Choose the Matrix 2700 for traditional cast-iron styling and lower published emissions; choose the Inspire for modern picture-window aesthetic and the optional NightFlame glass.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eOsburn 1700-I Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eStep-down sibling in the Osburn insert line. Smaller 1.86 ft³ firebox, 65,000 BTU\/hr maximum, 500–1,800 sq ft heating range, 18-inch log capacity, 7-hour maximum burn, 144 CFM blower (less powerful than the Inspire's 176 CFM), 68% HHV efficiency. Much smaller masonry opening required (21 1\/2\" × 27 1\/2\" × 12 7\/8\") — fits openings the Inspire won't. Choose the 1700-I for shallower masonry openings or smaller spaces; choose the Inspire for larger firebox, more powerful blower, modern aesthetic, and the NightFlame option.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eOsburn 3500-I Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eLarger step-up in the Osburn insert line. Much larger 3.5 ft³ firebox, 110,000 BTU\/hr maximum, 1,000–2,700 sq ft heating range, 22-inch log capacity, 10-hour maximum burn, 71% HHV efficiency, 1.6 g\/hr emissions, 144 CFM blower. Smaller minimum masonry depth (18 3\/8\") but wider width requirement (31\"). Traditional aesthetic, not modern. Choose the 3500-I for primary heat above 2,000 sq ft, longer log capacity, and longer burn cycles; choose the Inspire for modern aesthetic, more powerful blower, and lower BTU output appropriate for 1,500–2,000 sq ft spaces.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eRegency CI2700 Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eCross-brand competitor with a modern flush-mount aesthetic similar to the Inspire. Larger viewing window, premium build quality, longer realistic burn cycles, hybrid combustion technology in some configurations. Higher price point. The most common cross-shop with the Inspire for buyers prioritizing modern aesthetic — Regency's fit-and-finish at a premium versus the SBI dealer\/parts accessibility and the Osburn price point.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cp class=\"pull\"\u003eThe Inspire 2000-I is the modern face of the Osburn insert line — a wide picture-window of ceramic glass set into a clean flush profile, no cast-iron decorative work, no patterned louvers. If you want the fire to be the focus and you've got the masonry opening to take it, this is the right one. The blower is loud at higher settings and the masonry opening is substantial; if those work for your install, this is a strong primary-heat insert with the best blower in the Osburn line.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Osburn","offers":[{"title":"Narrow 4-Sides","offer_id":49276885729473,"sku":"OB02045+AC01022","price":4489.6,"currency_code":"USD","in_stock":true},{"title":"Narrow U-Shape","offer_id":49276885696705,"sku":"OB02045+AC01020","price":4426.35,"currency_code":"USD","in_stock":true},{"title":"Cuttable Faceplate","offer_id":49276885663937,"sku":"OB02045+AC01021","price":4426.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/osburn-inspire-2000-i-wood-insert-front-ob02045.webp?v=1748289977"},{"product_id":"osburn-matrix-i-wood-insert","title":"Osburn Matrix-I Wood Insert","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #231F20; line-height: 1.55; width: 100%; max-width: 100%; box-sizing: border-box; margin: 0; padding: 0; font-size: 16px; overflow-wrap: break-word; word-wrap: break-word; word-break: normal;\"\u003e\n\n\u003cstyle\u003e\n  .km-desc, .km-desc * { box-sizing: border-box; max-width: 100%; }\n  .km-desc { width: 100%; }\n  .km-desc p { margin: 0 0 14px; }\n  .km-desc h3 { font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px; font-weight: 600; color: #9B774D; margin: 22px 0 10px; }\n  .km-desc .spec-list { margin: 12px 0 0; }\n  .km-desc .spec-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .spec-row:first-child { border-top: 1px solid rgba(75,72,75,0.35); padding-top: 14px; }\n  .km-desc .spec-label { font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px; font-weight: 600; color: #4B484B; margin-bottom: 6px; }\n  .km-desc .spec-value { font-weight: 600; font-size: 15px; color: #231F20; margin-bottom: 6px; line-height: 1.35; }\n  .km-desc .spec-meaning { color: #4B484B; font-size: 13px; line-height: 1.55; }\n  @media (min-width: 720px) {\n    .km-desc .spec-row { display: grid; grid-template-columns: 38% 30% 1fr; gap: 16px; align-items: start; padding: 12px 0; }\n    .km-desc .spec-label { margin-bottom: 0; align-self: center; }\n    .km-desc .spec-value { margin-bottom: 0; font-size: 14px; align-self: center; }\n    .km-desc .spec-meaning { font-size: 13px; }\n    .km-desc .spec-row:first-child { padding-top: 12px; }\n  }\n  .km-desc .data-row { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; padding: 12px 0; border-bottom: 1px solid rgba(75,72,75,0.12); align-items: baseline; font-size: 13px; }\n  .km-desc .data-head + .data-row { border-top: 1px solid rgba(75,72,75,0.35); }\n  .km-desc .data-row .data-label { color: #4B484B; line-height: 1.4; }\n  .km-desc .data-row .data-val { font-weight: 600; color: #231F20; text-align: right; min-width: 56px; }\n  .km-desc .data-head { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; padding-bottom: 8px; font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px; font-weight: 600; color: #4B484B; }\n  .km-desc .data-head span:nth-child(2), .km-desc .data-head span:nth-child(3) { text-align: right; min-width: 56px; }\n  .km-desc ul { list-style: none; padding: 0; margin: 10px 0 14px; }\n  .km-desc ul li { padding: 4px 0 4px 18px; position: relative; line-height: 1.55; }\n  .km-desc ul li:before { content: \"—\"; position: absolute; left: 0; color: #9B774D; font-weight: 500; }\n  .km-desc .compare-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .compare-row:last-child { border-bottom: 0; }\n  .km-desc .compare-name { font-weight: 600; color: #231F20; display: inline-block; padding-bottom: 1px; }\n  .km-desc .compare-orient { color: #4B484B; margin-top: 4px; font-size: 13px; line-height: 1.5; }\n  .km-desc .pull { font-style: italic; font-size: clamp(16px, 4.2vw, 22px); line-height: 1.4; color: #231F20; border-left: 2px solid #9B774D; padding: 0 0 0 16px; margin: 32px 0 16px; }\n  .km-desc .lede { font-size: clamp(16px, 4vw, 22px); line-height: 1.4; letter-spacing: -0.2px; font-weight: 400; color: #231F20; margin: 0 0 24px; }\n  .km-desc .warranty-note { font-size: 12px; color: #4B484B; font-style: italic; margin-top: 14px; }\n  .km-desc details { border-top: 1px solid rgba(75,72,75,0.18); margin: 0; padding: 0; }\n  .km-desc details:last-of-type { border-bottom: 1px solid rgba(75,72,75,0.18); }\n  .km-desc details \u003e summary { list-style: none; cursor: pointer; padding: 18px 32px 18px 0; position: relative; font-size: clamp(16px, 4.2vw, 20px); line-height: 1.3; font-weight: 500; color: #231F20; letter-spacing: -0.2px; }\n  .km-desc details \u003e summary::-webkit-details-marker { display: none; }\n  .km-desc details \u003e summary::after { content: \"+\"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-size: 22px; font-weight: 300; color: #9B774D; line-height: 1; }\n  .km-desc details[open] \u003e summary::after { content: \"−\"; }\n  .km-desc details \u003e summary:focus-visible { outline: 2px solid #9B774D; outline-offset: 4px; }\n  .km-desc details \u003e .acc-body { padding: 0 0 28px 0; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"km-desc\"\u003e\n\n\u003cp class=\"lede\"\u003eA 2.4 ft³ non-catalytic medium-large wood insert with a contemporary cast-iron flush-mount surround — the Osburn-tier counterpart to the Enerzone Destination 2.3 Insert. EPA 2020 cordwood certified at 2.3 g\/hr emissions and 79% optimum efficiency, with a large 19 5\/8\" × 11 7\/8\" near-square ceramic glass viewing area, 20-inch maximum east-west log capacity, up to 2,100 sq ft of heating area, 8-hour maximum burn time, 75,000 BTU\/hr maximum output, and a heat-activated 90 CFM blower included as standard.\u003c\/p\u003e\n\n\u003cdetails open\u003e\n\u003csummary\u003eWho this is for\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003ch3\u003eRight buyer\u003c\/h3\u003e\n\u003cp\u003eOwners of a working masonry fireplace who want to convert an inefficient open hearth into a serious heat source — up to 2,100 sq ft of zone heating capability with a 2.4 ft³ firebox, 20-inch log capacity, and an 8-hour maximum burn cycle. Reasonable insulation, access to seasoned hardwood at 15–20% moisture, and an existing masonry fireplace that meets the manual's minimum opening dimensions (23 3\/8\" H × 28 7\/8\" W × 19 5\/8\" D) are the basic requirements.\u003c\/p\u003e\n\u003cp\u003eBuyers who want the Osburn brand finish with a contemporary aesthetic. The Matrix surround is a clean cast-iron flush-mount face designed to sit nearly flush with the masonry — a modern look that uses one of the largest near-square glass viewing areas in the medium-large insert class (19 5\/8\" × 11 7\/8\") as the visual focus rather than ornate decorative castings. The standard 36 1\/8\" × 25 1\/8\" cast-iron surround is included; optional backing plate kits extend the cover area for larger or older masonry openings.\u003c\/p\u003e\n\u003cp\u003eBuyers who want a single appliance to do the work of zone heating across a main living area. The 14,200–44,500 BTU\/hr tested output band gives meaningful flexibility — from mild-weather low-output operation up to serious cold-weather heat. With the heat-activated 90 CFM blower, warm air circulates from the firebox jacket out into the room automatically once the insert is up to temperature.\u003c\/p\u003e\n\u003cp\u003eBuyers who value Canadian-built SBI quality and the lifetime warranty on the combustion-chamber welds and cast-iron door frame. The Matrix shares the same medium-large SBI insert platform as the Enerzone Destination 2.3 Insert — proven chassis, EPA 2020 cordwood certified, broadly available parts and dealer support across North America.\u003c\/p\u003e\n\n\u003ch3\u003eWrong buyer\u003c\/h3\u003e\n\u003cp\u003eNot for buyers without an existing code-compliant masonry fireplace. Wood inserts must be installed inside a lined masonry fireplace with a continuous stainless-steel chimney liner running the full height. This insert is not approved for factory-built (prefab) metal fireplaces, mobile homes, or any installation outside a masonry hearth.\u003c\/p\u003e\n\u003cp\u003eNot for buyers expecting 10+ hour overnight burns. The 8-hour manufacturer maximum is achievable on a packed load of dense hardwood with the air shut down hard, but useful heat from a packed load is realistically 6–7 hours. For longer burns, step up to a 3.0+ ft³ insert or to a catalytic insert with a real low-output mode.\u003c\/p\u003e\n\u003cp\u003eNot for buyers wanting traditional decorative cast-iron styling. The Matrix surround is intentionally clean and modern. Buyers wanting heavy traditional castings, louvered faceplates, or ornate visible-grille styling should look at the Enerzone Solution 2.3-I (traditional faceplate option) or premium-tier alternatives.\u003c\/p\u003e\n\u003cp\u003eNot for buyers sensitive to blower noise. The 90 CFM blower is single-speed (no rheostat or variable-speed control) with a thermodisc heat sensor for AUTO operation. Owner reviews consistently flag the blower as louder than expected for this class of insert. AUTO mode reduces run time but does not change the volume when it's running.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eAt a glance\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cdiv class=\"spec-list\"\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion technology\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNon-catalytic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eSecondary-air tubes reignite smoke gases. No catalyst to replace; one air-control lever; simpler operation than a cat stove but shorter low-and-slow burn times.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eInstallation type\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMasonry insert\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInstalls inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. Not approved for factory-built fireplaces, mobile homes, or freestanding installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFirebox volume\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e2.4 ft³ overall \/ 1.95 ft³ EPA\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Medium-large firebox sized for zone heating across 500–2,100 sq ft. EPA loading volume is the usable space respecting air-wash and ash-spillage buffers.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum heat output\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e75,000 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePeak output on dry cordwood, transient. Sustained output across a burn cycle is substantially lower.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eTested output range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e14,200–44,500 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer CSA B415.1-10 stack-loss method. Wide operating band from mild-weather low output to serious cold-weather heat.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eHeating range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e500–2,100 sq ft\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer's stated range. Real-world comfort sizing for primary heat is roughly 1,200–1,800 sq ft in moderate climates and lower in cold climates or older homes — depends on insulation, layout, climate, ceiling height, fuel quality, and installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eAverage efficiency\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e72% HHV \/ 77% LHV\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003e79% optimum overall efficiency at a specific burn rate; 76% optimum heat-transfer efficiency. HHV is the federal standard. Government incentives may apply by jurisdiction and installation date.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eParticulate emissions\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e2.3 g\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eEPA 2020 cordwood certified (limit is 2.5 g\/hr). Tested per EPA \/ CSA B415.1-10 by an independent accredited laboratory.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum burn time\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUp to 8 hours\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer maximum at the lowest air setting. Useful heat through a burn cycle is realistically 6–7 hours.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e20 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eLogs load across the width of the firebox, sides visible from the door. Recommended log length is 16 inches east-west; most firewood suppliers cut to 16 inches as standard.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eConstruction\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eCarbon steel, cast-iron surround\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eWelded carbon-steel firebox (body 3\/16\", top 5\/16\") with a contemporary cast-iron flush-mount surround and cast-iron door frame. Lifetime warranty on the combustion-chamber welds and cast-iron door frame.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eStandard surround\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e36 1\/8\" × 25 1\/8\", included\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eFour-piece cast-iron flush-mount face (top, left, right, bottom) included with the insert. For larger masonry openings, optional 29\" × 44\" or 29\" × 50\" backing plate kits extend the cover area.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eGlass\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e19 5\/8\" × 11 7\/8\", ceramic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eNear-square ceramic glass with air-wash, 5\/32\" (4 mm) thick, tested to 1,400 °F per manual. Replacement glass must be a ceramic with the same specification — tempered or ordinary glass will not withstand the operating temperatures.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBlower\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eIncluded, up to 90 CFM\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Single-speed tangential blower with three-position switch: AUTO (heat-sensor-controlled, starts when insert is hot and stops when cool), MANUAL (continuous), or OFF. No variable-speed control. Owner reviews consistently flag the blower as louder than expected.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBaffle\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eC-Cast\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eRigid aluminosilicate fiber baffle rated above 2,000 °F.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFlue connection\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e6 in (insert liner)\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eTop of the unit. Requires a continuous stainless-steel chimney liner running the full height of the masonry chimney. Sold separately.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion chamber\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e21\" W × 16 3\/4\" D × 11 7\/8\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInside firebox dimensions per manual. Wider than deep; the 16 3\/4\" depth accepts N-S loading for packed cold-weather cycles in addition to the default E-W loading.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDoor opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e17 1\/2\" W × 8 3\/4\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eLoading door opening. The wide door accommodates 20-inch logs loaded east-west.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eOverall dimensions\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e36 1\/8\" W × 23 1\/8\" D × 25 1\/8\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInsert exterior dimensions per manual. Confirm fireplace can accommodate before ordering.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMinimum masonry opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e23 3\/8\" H × 28 7\/8\" W × 19 5\/8\" D\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Confirm fireplace dimensions before ordering. Backing plates can extend coverage for larger openings; the optional projection kit (2\" or 4\") can extend the insert outward when fireplace depth is insufficient.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eShipping weight\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e491 lb\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePlan for professional installation — this is heavy work in a confined space.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCountry of origin\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMade in Canada\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufactured by Stove Builder International (SBI) in Saint-Augustin-de-Desmaures, Quebec.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhere it can go\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe Matrix Insert is approved only for installation inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. It is not approved for installation in factory-built (prefab) metal fireplaces, in mobile or manufactured homes, in alcoves, or as a freestanding unit. The masonry fireplace and chimney must be inspected before installation for cracks, loose mortar, creosote, blockage, or other signs of deterioration.\u003c\/p\u003e\n\n\u003ch3\u003eMinimum masonry opening\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eDimension\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHeight\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e23 3\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eWidth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e28 7\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eDepth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e19 5\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eIf a fresh-air intake is being installed, add at least 4 inches to the width. Plan for a small installation margin above the insert to seat the liner adapter — an opening exactly at the minimum will be a tight install. Measure carefully before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eProjection kit (optional)\u003c\/h3\u003e\n\u003cp\u003eIf the fireplace depth is less than the minimum 19 5\/8\", the optional projection kit (SBI AC01323) extends the insert 2 or 4 inches forward of the fireplace facing. With the kit installed, the depth requirement reduces to 17 5\/8\" (2\" projection) or 15 5\/8\" (4\" projection). The projection kit requires one of the optional faceplate backing plate kits to secure to it. Ordered as a separate accessory.\u003c\/p\u003e\n\n\u003ch3\u003eFaceplate options\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eConfiguration\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eSize\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eStandard cast-iron surround (included)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e36 1\/8\" × 25 1\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eFaceplate backing plate kit (optional)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e29\" × 44\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eFaceplate backing plate kit (optional)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e29\" × 50\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eThe standard four-piece cast-iron flush-mount surround ships with the insert and covers most modern masonry openings. For larger or older openings, choose the backing plate kit (29\" × 44\" or 29\" × 50\") that matches the masonry opening — installs to the back of the standard surround to extend the cover area. Backing plate kits are ordered as separate accessories.\u003c\/p\u003e\n\n\u003ch3\u003eClearances to combustibles\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eSurface\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible side wall to unit\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e16\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible side mantle to unit\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e9\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible top mantle to unit\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible mantel shelf above insert (max 12\" deep)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eFloor protection in front of unit (USA)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e16\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eFloor protection in front of unit (Canada)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e18\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePlatform to ceiling\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e84\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eA combustible mantel shelf with a maximum depth of 12 inches may be installed at a height of at least 27 inches above the insert. At greater heights the shelf must still observe the 12-inch maximum depth. The certification label affixed to the insert (located underneath, behind the blower) always overrides clearance figures published in any other media.\u003c\/p\u003e\n\n\u003ch3\u003eFloor protection\u003c\/h3\u003e\n\u003cp\u003eFloor protection requirements depend on whether the existing masonry hearth is raised 5 inches or more above the surrounding combustible floor. If the hearth is raised 5 inches or more, a non-combustible floor protector with no R-value is required and must extend at least 16 inches in front of the unit in the USA, 18 inches in Canada. If the hearth is raised less than 5 inches, a non-combustible floor protector with an R-value of at least 1.00 is required and must extend at least 23 inches in front of the unit. The manual includes a thermal-resistance lookup table for common floor protection materials (brick, cement board, ceramic tile, marble, etc.) to calculate the required R-value combination.\u003c\/p\u003e\n\n\u003ch3\u003eChimney and liner\u003c\/h3\u003e\n\u003cp\u003eThe Matrix Insert performs best with a 6-inch stainless-steel chimney liner. In the USA, use a 6-inch liner listed to UL 1777. In Canada only, connection to a chimney liner of at least 5 inches may be permitted if it properly vents combustion gases, the total masonry chimney height is greater than 20 feet, and the application is verified and authorized by a qualified installer. The insert is not approved for a positive flue connection to clay tile — a continuous stainless liner is required.\u003c\/p\u003e\n\n\u003cp\u003eThe minimum chimney height is 12 feet, subject to installer verification, certification label, draft conditions, and local code. The manual also states that the total system height (from the floor the appliance sits on to the top of the chimney) should never be less than 15 feet for reliable draft. The chimney must extend at least 3 feet above the highest point of contact with the roof and at least 2 feet above any roof line or obstacle within 10 feet horizontally.\u003c\/p\u003e\n\n\u003cp\u003eIf the existing fireplace's throat damper is to remain, it must be locked open to clear the liner; otherwise the damper plate must be removed and a notice plate (#27009, supplied with the owner's manual kit) must be installed inside the masonry hearth in a visible place. A sheet-metal block-off plate sealed at the damper level (or, in Canada per CSA B365, mineral wool packing around the liner) is effectively required in practice to reduce cold-air backdraft and to allow the insert to deliver rated performance — without it, jacket-recovered heat is lost into the smoke chamber. An insulated liner (or pre-insulated liner with a wrap) improves draft and reduces creosote, and is required by code in some jurisdictions for clearance reasons.\u003c\/p\u003e\n\n\u003cp\u003eThe manual strongly recommends an interior chimney rising straight up through the tallest part of the house. Outside chimneys lead to cold backdrafting when there is no fire, slow kindling of new fires, and smoke roll-out when the door is opened for loading.\u003c\/p\u003e\n\n\u003ch3\u003eOutside air\u003c\/h3\u003e\n\u003cp\u003eThe manual identifies room air as the safest and most reliable supply of combustion air for this insert — almost all houses have enough natural leakage to provide what the insert needs. An optional 5-inch fresh-air intake kit is available for tight new-construction homes, for code jurisdictions requiring outside combustion air, or where powerful kitchen-range exhausts create negative pressure in the home. A smoke detector, a carbon monoxide detector, and a fire extinguisher are required in the room where the insert is installed.\u003c\/p\u003e\n\n\u003ch3\u003eCode compliance\u003c\/h3\u003e\n\u003cp\u003eCode compliance for any specific installation is determined by the local Authority Having Jurisdiction. Manufacturer listings cover what the insert is approved for; the AHJ approves what is permitted at your address. A WETT (Canada), NFI, or CSIA (USA) certified installer is strongly recommended and frequently required by code, permit, or insurance — and required for warranty coverage. In Canada the CSA B365 standard applies; in the USA, ANSI NFPA 211 applies. Confirm local requirements before purchasing, particularly in EPA non-attainment counties and in HOA jurisdictions where new wood-burning installs may be restricted.\u003c\/p\u003e\n\n\u003ch3\u003eCalifornia Proposition 65\u003c\/h3\u003e\n\u003cp\u003eThis product can expose you to chemicals including carbon monoxide, which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.P65warnings.ca.gov.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat's in the box, what you'll add\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003ch3\u003eShips with the insert\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMatrix wood insert (OB02028) with welded carbon-steel firebox and cast-iron door frame with ceramic glass\u003c\/li\u003e\n\u003cli\u003eFour-piece cast-iron flush-mount surround at 36 1\/8\" × 25 1\/8\" (top, left, right, and bottom pieces)\u003c\/li\u003e\n\u003cli\u003eHeat-activated 90 CFM single-speed tangential blower assembly with AUTO\/MANUAL\/OFF switch, mounted at the bottom of the insert\u003c\/li\u003e\n\u003cli\u003eC-Cast baffle and four stainless-steel secondary-air tubes\u003c\/li\u003e\n\u003cli\u003eHigh-density refractory firebrick lining\u003c\/li\u003e\n\u003cli\u003eInsert leveling bracket system (2 brackets) for rear-of-unit leveling in the masonry hearth\u003c\/li\u003e\n\u003cli\u003eThree liner fixation brackets and screws for connecting the stainless-steel liner to the flue collar\u003c\/li\u003e\n\u003cli\u003eDamper-removal notice plate (#27009) for installations where the masonry throat damper is removed\u003c\/li\u003e\n\u003cli\u003eOwner's installation and operation manual and product documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSold separately\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e6-inch continuous stainless-steel chimney liner kit (UL 1777, CAN\/ULC-S635, or CAN\/ULC-S640) — required for installation, sized to the chimney height\u003c\/li\u003e\n\u003cli\u003eHearth extension or floor protector sized per manual specifications, with R-value of at least 1.00 if hearth is raised less than 5 inches\u003c\/li\u003e\n\u003cli\u003eOptional faceplate backing plate kit (SBI AC01322 for 29\" × 44\" or AC01332 for 29\" × 50\") — for masonry openings larger than the standard 36 1\/8\" × 25 1\/8\" surround\u003c\/li\u003e\n\u003cli\u003eOptional 2\" or 4\" projection kit (SBI AC01323) — extends the insert forward of the fireplace facing when fireplace depth is insufficient; requires a faceplate backing plate kit (AC01322 or AC01332) to secure to\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch fresh-air intake kit (SBI AC01298) — for tight new-construction homes or code jurisdictions requiring outside combustion air\u003c\/li\u003e\n\u003cli\u003eOptional rigid fire screen (SBI AC01315) — for occasional attended fire viewing only where permitted by local code and only when used exactly as instructed in the fire screen manual; never leave the insert unattended when used with a fire screen. Open-door operation with a fire screen is prohibited in the United States and in Canadian provinces with particulate emission limits\u003c\/li\u003e\n\u003cli\u003ePin-type wood moisture meter — not optional in practice\u003c\/li\u003e\n\u003cli\u003eFlue thermometer — strongly recommended for insert installations since stove-top temperature isn't accessible\u003c\/li\u003e\n\u003cli\u003eInstallation by an authorized qualified technician (WETT, NFI, or CSIA certified) — required for warranty coverage and often required by code, permit, or insurance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow it actually performs\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe 75,000 BTU\/hr maximum is a peak rating, transient, achieved on dry cordwood at high loading density and short reload intervals. The figure that matters for daily life is the sustained output across a full burn cycle, which lands in the 14,200–44,500 BTU\/hr band per the CSA B415.1-10 stack-loss method. That's the same operating range as the Destination 2.3 sibling on the same SBI platform — they're tuned essentially identically for combustion and output.\u003c\/p\u003e\n\n\u003cp\u003eA realistic burn cycle from a packed load of well-seasoned hardwood produces a 30–45 minute warm-up, 2–3 hours of strong sustained heat once the firebox and surrounding masonry come up to temperature, then a gradual decline over the next 3–4 hours with a coal bed remaining. Total useful heat from one full pack is realistically 6–7 hours, occasionally approaching the 8-hour manufacturer maximum with dense hardwood, mild weather, and a packed coal bed.\u003c\/p\u003e\n\n\u003cp\u003eThe masonry around the insert acts as a thermal mass. Once the surrounding brick or stone is up to temperature, it continues radiating heat into the room well after the active fire has died down. This is one of the underappreciated benefits of an insert versus a freestanding stove — the masonry stores and releases heat on its own cycle. The first hour from a cold start is the slowest because that mass has to come up to temperature; once it's hot, response time is faster.\u003c\/p\u003e\n\n\u003cp\u003eThe 90 CFM heat-activated blower is what gets the heat into the room. Because most of the insert's firebox sits inside the masonry cavity, the radiant heat that would otherwise reach the room from a freestanding stove is partly absorbed by the surrounding brick. The convection jacket around the firebox captures that heat and the blower pushes it out into the room. With the switch in AUTO, the blower starts automatically once the insert is hot enough and stops when it cools — set the position and forget about it. With the switch in MANUAL, the blower runs continuously regardless of insert temperature.\u003c\/p\u003e\n\n\u003cp\u003ePer the manual, the blower can provide up to a 2% efficiency gain when used regularly, but it is not a way to gain more output from an undersized insert. Allow the insert to reach operating temperature (approximately one hour from a cold start) before turning the blower to MANUAL — increased airflow during start-up pulls heat away from the firebox and slows the build-up to clean combustion. AUTO mode handles this timing automatically.\u003c\/p\u003e\n\n\u003cp\u003eAir-wash glass stays largely clear during proper hot burns at moderate-to-high air settings. At low burn rates with marginally seasoned wood, the glass will tar. This is universal to non-catalytic inserts, not specific to Osburn.\u003c\/p\u003e\n\n\u003cp\u003ePower-failure operation: the insert continues to burn safely without electricity — only the blower stops. Heat distribution drops noticeably without the blower because the masonry cavity absorbs most of the firebox radiation. Plan accordingly if you're buying this insert specifically as a power-outage heat source.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eTrade-offs to know\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eInsert, not a freestanding stove.\u003c\/strong\u003e The Matrix Insert requires an existing masonry fireplace plus a full stainless-steel chimney liner — there's no other approved installation path. Buyers without a masonry fireplace should look at the Osburn 2000 or Osburn Matrix freestanding stove instead.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSame platform as the Destination 2.3 Insert; choose by aesthetic and brand.\u003c\/strong\u003e The Matrix Insert and the Enerzone Destination 2.3 Insert share the same SBI medium-large insert chassis — same 2.4 ft³ firebox, same 1.95 ft³ EPA loading volume, same combustion chamber dimensions, same 20-inch log capacity, same 75,000 BTU\/hr maximum, same 14,200–44,500 BTU\/hr tested range, same 2.3 g\/hr emissions, same 72% HHV \/ 77% LHV efficiency, same 90 CFM blower, same 8-hour maximum burn, same warranty schedule. The Matrix is the Osburn-branded version with a contemporary cast-iron flush-mount surround; the Destination 2.3 is the Enerzone-branded version at a different price point with different faceplate styling options. Choose between them by aesthetic preference, dealer relationship, and price — the underlying appliance is the same.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlower noise is the most consistent owner complaint.\u003c\/strong\u003e The 90 CFM tangential blower is single-speed with a thermodisc heat sensor for AUTO operation — there is no variable-speed control or rheostat. Owner reviews on the manufacturer's site consistently flag the blower as louder than expected for an appliance in this price range. AUTO mode reduces total run time but does not change the volume when it's running. If quiet operation matters more than maximum heat transfer, the Enerzone Solution 2.3-I (different blower system) or a higher-tier insert with variable-speed blower may be a better fit.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoor handle has a known issue.\u003c\/strong\u003e Owner reports include the door handle ball-bearing screw working loose over time, and SBI publishes a model-specific door handle replacement instruction sheet (separate document 46372AF). Not a deal-breaker — the replacement is straightforward and the part is available through SBI dealers — but worth knowing before purchase. Periodic inspection of the door handle hardware is a reasonable maintenance habit.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMedium-large firebox, medium-long burn time.\u003c\/strong\u003e A 2.4 ft³ non-cat insert gives you meaningful primary-heat capability across 1,200–1,800 sq ft, with realistic 6–7 hour burn cycles. If you want true 10+ hour overnight burns, step up to a 3.0+ ft³ insert (like the Pacific Energy Summit Insert LE) or to a catalytic insert with a real low-output mode.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe 2,100 sq ft figure is aspirational.\u003c\/strong\u003e The most consistent owner regret across medium-large inserts is buying for the high end of the manufacturer's heating range. If you need to reliably heat more than ~1,800 sq ft as primary winter heat in a cold climate or older home, step up a firebox size.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe blower is essential, not optional.\u003c\/strong\u003e Unlike a freestanding stove where the blower meaningfully improves heat distribution, on an insert the blower is what gets the heat into the room at all. Most of the firebox sits inside the masonry cavity, which absorbs radiant heat. The insert will run safely without the blower (useful in a power outage), but day-to-day heat into the room depends on the blower being on and working.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eExisting fireplace dimensions are non-negotiable.\u003c\/strong\u003e The masonry opening must meet the manual's minimum dimensions (23 3\/8\" H × 28 7\/8\" W × 19 5\/8\" D). Backing plates can cover a larger opening but cannot compensate for an undersized one. The projection kit can extend the insert forward by 2 or 4 inches if depth is short — and requires a faceplate backing plate kit to secure to — but not enough to fit a substantially shallow fireplace. Measure before purchase.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood quality is not negotiable.\u003c\/strong\u003e The most common \"the insert doesn't heat\" complaint comes from owners running marginally seasoned wood. Secondary combustion works best with dry, properly seasoned fuel, ideally around 15–20% moisture. A pin-type moisture meter is the single best accessory for this insert.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eContemporary, not traditional.\u003c\/strong\u003e The cast-iron flush-mount surround is intentionally clean and modern. Buyers wanting heavy decorative cast iron, louvered faceplates, or visible-grille traditional styling should look at the Enerzone Solution 2.3-I (traditional faceplate option) or premium-tier alternatives.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eOperating reality\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eFirst burns.\u003c\/strong\u003e The first few fires cure the high-temperature paint and condition the internal components. Burn two or three small fires first, then build bigger, hotter fires until the paint smell is gone. The smell can be strong; ventilate the room well and avoid prolonged exposure during cure-in. Fresh paint fumes can also trigger false alarms in smoke detectors.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLighting.\u003c\/strong\u003e The manual describes the top-down method as the preferred ignition technique: small kindling on top, medium pieces below, light from the top so the fire burns downward. Place two small pieces on each side of the firebox, crumple 5–10 sheets of newspaper between them, cross the remaining small pieces over the newspaper, then place five larger pieces on top crossing them in two layers. Open the air control fully, light the paper, leave the door slightly ajar for about 5 minutes, then close the door with the air still fully open. Close gradually only when the firebox is full of bright turbulent flames and the wood edges are glowing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAir control.\u003c\/strong\u003e Single lever located underneath the ash shelf. Push the handle completely to the left for high (open), completely to the right for low (closed). Full open at light-off; gradually closed only after the load is fully engaged and stable secondary flames are established. The manual specifies closing the primary air control gradually — too fast and the fire smolders. If flames diminish to the point of disappearing, the air was closed too early or the wood is too wet. This wood heater has a manufacturer-set minimum low burn rate that must not be altered — it is against federal regulations to alter this setting.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlower switch positions.\u003c\/strong\u003e The 90 CFM blower assembly has a three-position switch: AUTO (position 1, heat-sensor-controlled, starts when insert is hot and stops when cool), OFF (position 2, prevents the blower from starting automatically), and MANUAL (position 3, runs continuously). Use AUTO for normal operation. Allow the insert to reach operating temperature before turning the blower to MANUAL from a cold start.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eReload cadence.\u003c\/strong\u003e 3–4 hours between reloads in active heating use; up to 7 hours for a final overnight pack with the air shut hard. Rake remaining charcoal toward the front of the firebox before loading — this concentrates the coals near where most of the combustion air enters and helps ignite the new load. Open the air for a minute or two before opening the door, open the door slowly to avoid smoke rollout, load with the new pieces toward the rear on top of the embers, close the door, and run the air open until the load is fully engaged before reducing gradually. Do not elevate the fire by using a grate or andirons.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBurn in cycles, not single-log feeds.\u003c\/strong\u003e The manual is explicit: do not attempt to produce steady heat output by placing a single log on the fire at regular intervals. Always place at least three (preferably more) pieces on the fire at a time so the heat radiated from one piece helps ignite the pieces next to it. Each load should provide several hours of heating.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAsh management.\u003c\/strong\u003e Empty ash every 2–3 days during full-time heating. The best time to remove ash is in the morning after an overnight fire when the insert is relatively cool but there is still some chimney draft to draw ash dust into the insert rather than into the room. Always dispose of ash in a tightly covered metal container on a non-combustible surface, well away from combustible materials — ash retains hot embers for days. Never store ashes indoors, in a non-metallic container, or on a wooden deck.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGlass cleaning.\u003c\/strong\u003e Damp newspaper dipped in cold ash, or a dedicated ceramic-glass cleaner. A whitish dusty deposit forms on the inner glass during normal operation and wipes off easily when the insert is cold. Light brown stains in the lower corners mean smoky combustion at low burn rates — usually wet wood or air closed too early. Brown streaks from the edge of the glass means the glass gasket needs replacement. Do not clean the glass when the insert is hot, and do not strike or slam the glass door shut.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoor and glass gaskets.\u003c\/strong\u003e Per the manual, the door gasket needs replacement when the paper-strip test fails: close the door on a strip of paper and try to pull it out; firm resistance means the gasket is sealing, easy pull means it's time to replace. Test all the way around the door. The latch mechanism is adjustable via the top and bottom bolts (depth and gasket tension) and the left and right bolts (handle angle) on the door pressure plate. Glass gasket is flat, adhesive-backed, woven fibreglass — must be centered on the edge of the glass during replacement and not stretched. Plan on every 3–5 seasons in regular use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAnnual chimney sweep.\u003c\/strong\u003e Per the manual, the chimney liner should be cleaned and inspected at least once each year. Inspect every two months during the heating season until you know your creosote-formation rate; weekly cleaning may be necessary in mild-weather low-burn conditions. If buildup reaches 1\/8 inch, sweep immediately. The baffle lifts out for sweep access. Insert installations make sweeping more involved than freestanding stoves — many owners hire a CSIA-certified sweep rather than doing it themselves.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood seasoning.\u003c\/strong\u003e Hardwood needs 12–24 months split, stacked off the ground, top-covered, with sun and wind on the sides. Don't trust supplier \"seasoned\" claims — use a pin-type moisture meter, split a piece in half, measure the fresh face. Manual target: 15–20% moisture. Wood above 25% will smolder, soot the glass, line the chimney with creosote, and undercut every published efficiency and emissions number on this page.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlower maintenance.\u003c\/strong\u003e Keep the blower intake and fins free of dust. Vacuum dust accumulation annually. Do not oil the blower unless the blower manual specifically calls for lubrication. Owner reports note that bearings can develop a squeak after a season or two; pulling, cleaning, and adjusting the bearings typically resolves it. Replacement blowers and related service parts are available through Osburn\/SBI dealers and parts channels if needed years out.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoor handle inspection.\u003c\/strong\u003e Periodically check the door handle hardware for looseness. SBI publishes a separate door handle replacement instruction sheet (document 46372AF) — keep the model and serial numbers handy when ordering replacement parts. The handle assembly is a normal wear item across the SBI medium-large insert platform.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat never to burn.\u003c\/strong\u003e Per the manual and EPA fuel rules: no coal, garbage, yard waste, materials containing rubber or plastic, waste petroleum products, paint or paint thinners, asphalt products, painted or pressure-treated wood, railroad ties, manure or animal remains, plywood, particle board, paper products, asbestos materials, construction or demolition debris, salt-water driftwood, or unseasoned wood. This does not prohibit normal fire starters made from paper, cardboard, sawdust, wax, or similar substances when used only to start a fire. Burning prohibited materials destroys the firebox, voids the warranty, and releases toxic compounds into your home and the chimney. Do not burn manufactured logs made of wax-impregnated sawdust or logs with chemical additives; 100% compressed-sawdust logs can be used with caution but never more than the manufacturer-recommended quantity.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWarranty and service\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe Osburn limited lifetime warranty applies to the original retail purchaser only and is non-transferable. The warranty applies to normal residential use only. Proof of purchase (dated bill of sale), model name, and serial number are required for any warranty claim. Online registration is recommended at osburn-mfg.com but not required if a dated invoice is retained.\u003c\/p\u003e\n\n\u003ch3\u003eCoverage by component\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eComponent\u003c\/span\u003e\u003cspan\u003eParts\u003c\/span\u003e\u003cspan\u003eLabor\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustion chamber welds, cast-iron door frame\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCeramic glass, plating manufacturing defects\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eSurrounds, heat shields, trims, C-Cast baffle, secondary air tubes\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e7 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHandle assembly, glass retainers, air control mechanism\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e3 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCarbon-steel firebox components\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eBlower, heat sensors, switches, wiring, electronics\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e2 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePaint (peeling), gaskets, insulation, ceramic fiber blankets, and other options\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eReplacement parts under warranty\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e90 d\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eA one-time replacement limit applies to all parts with lifetime coverage. Warranty is void if the unit is used to burn anything other than seasoned cordwood, or if it is not operated according to the owner's manual. Damage caused by misuse, improper installation, lack of maintenance, overfiring, downdrafts, venting problems, or under-estimated heating area is not covered. Improper installation by anyone other than an authorized qualified technician voids the warranty.\u003c\/p\u003e\n\n\u003cp\u003eWarranty claims are made through your Osburn dealer and remain subject to SBI\/Osburn inspection, approval, and the current written warranty. Kaminos is the retailer for this insert and supports buyers through purchase; final warranty approval rests with SBI as the manufacturer.\u003c\/p\u003e\n\n\u003cp class=\"warranty-note\"\u003eOsburn may require photos or returned parts to support a claim; repair work covered by warranty requires prior manufacturer approval.\u003c\/p\u003e\n\n\u003cp class=\"warranty-note\"\u003eCoverage details can change by component and warranty revision; the current Osburn warranty controls.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCompare with\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eEnerzone Destination 2.3 Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eSame SBI medium-large insert chassis as the Matrix — same 2.4 ft³ firebox, same 1.95 ft³ EPA loading, same combustion chamber, same 20\" log capacity, same 75,000 BTU\/hr maximum, same 14,200–44,500 BTU\/hr tested range, same 2.3 g\/hr emissions, same 72% HHV \/ 77% LHV efficiency, same 90 CFM blower, same 8-hour maximum burn, same warranty schedule. The Destination is the Enerzone-branded version at a different price point with different faceplate styling options. Choose between them by aesthetic preference, dealer relationship, and price — the underlying appliance is identical.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eEnerzone Solution 2.3-I Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eSame SBI 2.4 ft³ firebox class but with traditional keystone-style faceplate options (multiple sizes including cuttable for irregular openings) and a stronger 144 CFM blower system. The Solution 2.3-I is the more traditional aesthetic alternative on the same firebox platform with more aggressive heat distribution. Choose the Solution 2.3-I if you want a traditional look and a higher-CFM blower; choose the Matrix for the contemporary cast-iron flush-mount aesthetic.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eOsburn 2000 Wood Stove\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eThe freestanding equivalent on the same firebox platform — same 2.4 ft³ firebox, same 75,000 BTU\/hr maximum, same 20\" log capacity, larger 130 CFM included blower (the freestanding doesn't have a masonry cavity absorbing radiant heat, so it benefits from more CFM). Choose the Osburn 2000 if you don't have an existing masonry fireplace, or if you want a freestanding stove for visual presence and full radiant heat in the room; choose the Matrix Insert if you have a masonry fireplace to convert.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003ePacific Energy Summit Insert LE\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eStep-up cross-brand competitor in the larger-firebox insert class. 3.0 ft³ firebox, 99,000 BTU\/hr maximum, 1.8 g\/hr emissions, 20\" log capacity, and Pacific Energy's Extended Burn Technology rated for up to 10 hours of controlled burning. Premium build, higher price, meaningfully larger firebox. Choose the Summit Insert LE if you need a bigger firebox, longer burn times, and don't mind the higher cost; choose the Matrix Insert for a smaller footprint and the Osburn brand at a more accessible price point.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cp class=\"pull\"\u003eThe Matrix Insert is the contemporary cast-iron wood insert in the Osburn line — the Osburn-tier counterpart to the Enerzone Destination 2.3 on the same proven SBI chassis. Built to turn an existing masonry fireplace into a clean-burning serious heat source, with one of the largest near-square viewing glasses in its class, 20-inch logs, an 8-hour burn cycle, and the 90 CFM heat-activated blower included as standard. Measure the opening, install it right, burn good wood, and it carries you through winter.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Osburn","offers":[{"title":"Default Title","offer_id":49276983017665,"sku":"OB02028","price":3949.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/osburn-matrix-i-wood-insert-front-ob02028.webp?v=1748288915"},{"product_id":"osburn-3500-i-wood-insert","title":"Osburn 3500-I Wood Insert","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #231F20; line-height: 1.55; width: 100%; max-width: 100%; box-sizing: border-box; margin: 0; padding: 0; font-size: 16px; overflow-wrap: break-word; word-wrap: break-word; word-break: normal;\"\u003e\n\n\u003cstyle\u003e\n  .km-desc, .km-desc * { box-sizing: border-box; max-width: 100%; }\n  .km-desc { width: 100%; }\n  .km-desc p { margin: 0 0 14px; }\n  .km-desc h3 { font-size: 11px; 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}\n  .km-desc ul li:before { content: \"—\"; position: absolute; left: 0; color: #9B774D; font-weight: 500; }\n  .km-desc .compare-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .compare-row:last-child { border-bottom: 0; }\n  .km-desc .compare-name { font-weight: 600; color: #231F20; display: inline-block; padding-bottom: 1px; }\n  .km-desc .compare-orient { color: #4B484B; margin-top: 4px; font-size: 13px; line-height: 1.5; }\n  .km-desc .pull { font-style: italic; font-size: clamp(16px, 4.2vw, 22px); line-height: 1.4; color: #231F20; border-left: 2px solid #9B774D; padding: 0 0 0 16px; margin: 32px 0 16px; }\n  .km-desc .lede { font-size: clamp(16px, 4vw, 22px); line-height: 1.4; letter-spacing: -0.2px; font-weight: 400; color: #231F20; margin: 0 0 24px; }\n  .km-desc .warranty-note { font-size: 12px; color: #4B484B; font-style: italic; margin-top: 14px; }\n  .km-desc details { border-top: 1px solid rgba(75,72,75,0.18); margin: 0; padding: 0; }\n  .km-desc details:last-of-type { border-bottom: 1px solid rgba(75,72,75,0.18); }\n  .km-desc details \u003e summary { list-style: none; cursor: pointer; padding: 18px 32px 18px 0; position: relative; font-size: clamp(16px, 4.2vw, 20px); line-height: 1.3; font-weight: 500; color: #231F20; letter-spacing: -0.2px; }\n  .km-desc details \u003e summary::-webkit-details-marker { display: none; }\n  .km-desc details \u003e summary::after { content: \"+\"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-size: 22px; font-weight: 300; color: #9B774D; line-height: 1; }\n  .km-desc details[open] \u003e summary::after { content: \"−\"; }\n  .km-desc details \u003e summary:focus-visible { outline: 2px solid #9B774D; outline-offset: 4px; }\n  .km-desc details \u003e .acc-body { padding: 0 0 28px 0; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"km-desc\"\u003e\n\n\u003cp class=\"lede\"\u003eA 3.5 ft³ non-catalytic steel wood insert built for large existing masonry fireplaces with a 26 1\/4\" × 31\" × 18 3\/8\" minimum opening — the powerhouse of the Osburn insert line. EPA 2020 cordwood certified at 71% HHV efficiency and 1.6 g\/hr emissions, with a 22-inch maximum log capacity, up to 2,700 sq ft of heating area, a 10-hour maximum burn time, 110,000 BTU\/hr maximum output, and a powerful 144 CFM heat-activated blower included as standard. Cast-iron arched door with configurable Black or Brushed Nickel door overlay, Medium 32\" × 44\" or Large 32\" × 50\" faceplate, and matching trim in Black or Brushed Nickel.\u003c\/p\u003e\n\n\u003cdetails open\u003e\n\u003csummary\u003eWho this is for\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003ch3\u003eRight buyer\u003c\/h3\u003e\n\u003cp\u003eOwners of a large existing masonry fireplace who want serious primary heat output instead of a decorative open fire — single-family homes, well-insulated cabins, or open-plan spaces of roughly 1,500–2,400 sq ft, with reasonable insulation and access to seasoned hardwood at 15–20% moisture content.\u003c\/p\u003e\n\n\u003cp\u003eSuited to homeowners whose existing masonry opening is large enough to accept a 26 1\/4\" tall × 31\" wide × 18 3\/8\" deep minimum footprint — meaningfully larger than what most small inserts require. The 22-inch maximum log capacity, 144 CFM included blower, and 3.5 ft³ firebox put this in serious primary-heat territory, not supplemental.\u003c\/p\u003e\n\n\u003cp\u003eBuyers who want comprehensive visual configurability: cast-iron arched door with Black or Brushed Nickel door overlay, Medium 32\" × 44\" or Large 32\" × 50\" faceplate, and matching faceplate trim in Black or Brushed Nickel — eight finished-look combinations to match home decor. Door overlay, faceplate size, and trim are all configured at order, not field-swappable.\u003c\/p\u003e\n\n\u003cp\u003eBuyers who prefer the Osburn premium-tier finish detailing — the cast-iron door overlay specifically — over the plainer Enerzone Solution 3.5 Insert, which uses the same chassis at a lower price.\u003c\/p\u003e\n\n\u003ch3\u003eWrong buyer\u003c\/h3\u003e\n\u003cp\u003eNot for buyers with smaller hearths. The 31-inch minimum width alone excludes a substantial percentage of older masonry fireplaces — measure before buying. If your opening is borderline, the smaller Osburn Matrix 2700 or Osburn 1700-I is the right tool.\u003c\/p\u003e\n\n\u003cp\u003eNot for buyers expecting 14–20+ hour overnight burns. Non-catalytic inserts can leave usable coals after an overnight load, but meaningful heat output is front-loaded. Expect roughly 6–9 hours of useful heat from a packed load of dense hardwood, occasionally approaching the 10-hour manufacturer maximum in favorable conditions; for longer low-output burns, a catalytic or hybrid insert is the right tool.\u003c\/p\u003e\n\n\u003cp\u003eNot for small spaces under 1,200 sq ft — at this firebox volume the insert can easily overheat the room at any meaningful burn rate, forcing low burns that smolder, blacken the glass, and produce creosote.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eAt a glance\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cdiv class=\"spec-list\"\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion technology\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNon-catalytic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eSecondary-air tubes reignite smoke gases. No catalyst to replace; one air-control lever; simpler operation than a cat insert but shorter low-and-slow burn times.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eInstallation type\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMasonry insert\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInstalls inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. Not approved for factory-built fireplaces, mobile homes, alcoves, or freestanding installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFirebox volume\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e3.5 ft³ overall \/ 2.88 ft³ EPA\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Among the larger non-catalytic insert fireboxes on the market. Loads up to 50 lb of cordwood when packed. The overall figure includes a buffer zone above the EPA loading line; the 2.88 ft³ figure is the usable loading volume used during EPA emissions certification.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum heat output\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e110,000 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePeak output on dry cordwood, transient. Sustained output across a burn cycle is substantially lower.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eTested output range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e17,200–57,800 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer CSA B415.1-10 stack-loss method. The realistic operating band buyers should plan around.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eHeating range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e1,000–2,700 sq ft\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer's stated range. Real-world comfort sizing for primary heat is roughly 1,500–2,400 sq ft in moderate climates and lower in cold climates or older homes — depends on insulation, layout, climate, ceiling height, fuel quality, and installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eAverage efficiency\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e71% HHV \/ 76% LHV\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003e77% optimum overall efficiency at low burn rate; 75% optimum heat transfer efficiency. HHV is the federal standard. Government incentives may apply by jurisdiction and installation date.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eParticulate emissions\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e1.6 g\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. EPA 2020 limits are 2.0 g\/hr crib-wood or 2.5 g\/hr cordwood. The insert is listed as compliant with the 2020 cordwood standard.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum burn time\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUp to 10 hours\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer maximum from a packed load of dry hardwood with the air shut down hard. Useful heat through a burn cycle is realistically 6–9 hours.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eRecommended log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e16 in\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Most firewood suppliers cut to this length.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e22 in\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Loading over width and over depth — the 3500-I accepts logs east-west across the 22 7\/8\" firebox width, and shorter splits load north-south across the 20 1\/8\" firebox depth. Owners regularly fit 8–10 medium splits N-S for overnight burns.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eConstruction\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eCarbon steel, cast-iron door\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eWelded carbon-steel firebox with a cast-iron arched glazed door. 3\/16\" body, 5\/16\" top. Lifetime warranty on the combustion-chamber welds.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eGlass\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e18 7\/8\" × 11 3\/4\", ceramic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eLarge arched ceramic glass with air-wash, 5\/32\" (4 mm) thick, tested to 1,400 °F per manual. One of the larger viewing windows in the SBI insert lineup. Replacement must be SCHOTT ceramic with the same specification — tempered or ordinary glass will not withstand the operating temperatures.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBlower\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eIncluded, up to 144 CFM\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Variable-speed tangential blower (HI \/ LO \/ OFF) with thermodisc heat sensor for automatic on\/off based on insert temperature. For an insert, where most of the firebox sits inside the masonry cavity, the blower is what gets the heat into the room.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBaffle\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eC-Cast\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eRigid aluminosilicate fiber baffle rated above 2,000 °F.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFlue connection\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e6 in (insert liner)\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eTop of the unit. Requires a continuous stainless-steel chimney liner running the full height of the masonry chimney. Liner must conform to UL 1777 (USA), CAN\/ULC-S635, or CAN\/ULC-S640 (Canada). Per manual, minimum liner height 15 feet. Sold separately.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion chamber\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e22 7\/8\" W × 20 1\/8\" D × 12 7\/8\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInside firebox dimensions per manual. Designed for loading over both width and depth — the 20 1\/8\" depth is the deepest in the Osburn insert line, which is what makes practical N-S loading possible at this firebox size.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDoor opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e19\" W × 9 7\/8\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eLoading door opening per manufacturer's official spec. Accommodates 22-inch logs loaded east-west.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eOverall dimensions\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e30 3\/8\" W × 29\" D × 24 7\/8\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eOverall appliance dimensions excluding the faceplate.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMinimum masonry opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e26 1\/4\" H × 31\" W × 18 3\/8\" D\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. The 31\" width is the most common reason this insert does not fit a given hearth. Measure carefully before ordering. See \"Where it can go\" for faceplate options.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eShipping weight\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e540 lb\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePlan for multi-person handling — three-person minimum is reasonable for this weight class. Remove loose internal components as appropriate during installation to reduce handling weight.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCountry of origin\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMade in Canada\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufactured by Stove Builder International (SBI) in Saint-Augustin-de-Desmaures, Quebec.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhere it can go\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe Osburn 3500-I is designed to slide into an existing code-compliant masonry fireplace with a connected and inspected masonry chimney. It is not approved for installation in a factory-built (prefab) metal fireplace, in a mobile home, in any outdoor or unconditioned space, or as a freestanding stove.\u003c\/p\u003e\n\n\u003ch3\u003eMinimum masonry opening\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eDimension\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHeight\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e26 1\/4\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eWidth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e31\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eDepth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e18 3\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eIf a fresh-air intake is being installed, add at least 4 inches to the width. Plan for a small installation margin above the insert to seat the liner adapter — an opening exactly at the minimum will be a tight install. Borderline openings frequently require removal of the masonry damper assembly and an offset liner adapter at the insert flue collar. The 31-inch minimum width is the most common reason this insert does not fit a given hearth — measure carefully before purchase.\u003c\/p\u003e\n\n\u003ch3\u003eFaceplate options\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eFaceplate size\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eFinish\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eMedium (32\" × 44\")\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eBlack or Brushed Nickel\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eLarge (32\" × 50\")\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eBlack or Brushed Nickel\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eTrim color matches the faceplate finish. The cast-iron door overlay is selected separately in Black or Brushed Nickel — most buyers match both. Selected at order, not field-swappable.\u003c\/p\u003e\n\n\u003ch3\u003eClearances to combustibles\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eSurface\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eAdjacent combustible side wall\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e19\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eFaceplate to combustible side mantel\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e9\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eFaceplate to combustible top mantel\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eTop of insert to combustible shelf\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePlatform \/ floor protection to ceiling\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e84\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eThe certification label on the back of the insert always overrides clearance figures published elsewhere. Reduced clearances are not available by means of heat shields on this insert — the figures above are the binding minimums.\u003c\/p\u003e\n\n\u003ch3\u003eFloor protection\u003c\/h3\u003e\n\u003cp\u003eFloor protection requirements depend on whether the existing masonry hearth is raised 4 inches or more above the surrounding combustible floor. If the hearth is raised 4 inches or more, a non-combustible floor protector with no R-value is required and must extend at least 16 inches in front of the unit in the USA, 18 inches in Canada. If the hearth is raised less than 4 inches, a non-combustible floor protector with an R-value of at least 1.00 is required and must extend at least the same distance in front of the unit. The manual includes a thermal-resistance lookup table for common floor protection materials (brick, cement board, ceramic tile, marble) to calculate the required R-value combination. Tile alone is not sufficient — the manual requires a continuous non-combustible sheet beneath any tile installation. Final hearth protection must be calculated from the manual's floor-protection worksheet and approved by the installer\/AHJ.\u003c\/p\u003e\n\n\u003ch3\u003eChimney and liner\u003c\/h3\u003e\n\u003cp\u003eThe Osburn 3500-I requires a continuous 6-inch stainless-steel chimney liner extending from the insert flue collar to the top of the chimney. The liner must conform to ULC S635 or CAN\/ULC-S640 (Canada) or UL 1777 (USA) and be rated for solid fuel. The minimum liner height is 15 feet, subject to installer verification, certification label, draft conditions, and local code. The chimney must extend at least 3 feet above the highest point of contact with the roof and at least 2 feet above any roof line or obstacle within 10 feet horizontally.\u003c\/p\u003e\n\n\u003cp\u003eThe insert is not approved for a \"positive flue connection\" to clay tile — a continuous stainless liner is required. If the existing fireplace's throat damper is to remain, it must be locked open to clear the liner; otherwise the damper plate must be removed. A sheet-metal block-off plate sealed at the damper level (or, in Canada per CSA B365, mineral wool packing around the liner) is recommended at the throat to reduce cold-air backdraft and to allow the insert to deliver rated performance — without it, jacket-recovered heat is lost into the smoke chamber. An insulated liner (or pre-insulated liner with a wrap) improves draft and reduces creosote, and is required by code in some jurisdictions for clearance reasons.\u003c\/p\u003e\n\n\u003ch3\u003eOutside air\u003c\/h3\u003e\n\u003cp\u003eAn optional fresh-air intake kit is available for code jurisdictions requiring outside combustion air or for tight new-construction homes with mechanical ventilation. In conventional homes the manual identifies room air as the safest and most reliable supply for combustion; almost all houses have enough natural leakage to provide what the insert needs. A smoke detector and carbon monoxide detector are required in the room where the insert is installed.\u003c\/p\u003e\n\n\u003ch3\u003eCode compliance\u003c\/h3\u003e\n\u003cp\u003eCode compliance for any specific installation is determined by the local Authority Having Jurisdiction. Manufacturer listings cover what the insert is approved for; the AHJ approves what is permitted at your address. A WETT (Canada), NFI, or CSIA (USA) certified installer is strongly recommended and frequently required by code, permit, or insurance. In Canada the CSA B365 standard applies; in the USA, ANSI NFPA 211 applies. Confirm local requirements before purchasing — particularly in EPA non-attainment counties and in HOA jurisdictions where new wood-burning installs may be restricted.\u003c\/p\u003e\n\n\u003ch3\u003eCalifornia Proposition 65\u003c\/h3\u003e\n\u003cp\u003eThis product can expose you to chemicals including carbon monoxide, which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.P65warnings.ca.gov.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat's in the box, what you'll add\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003ch3\u003eShips with the insert\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOsburn 3500-I wood insert (OB03510) with welded carbon-steel firebox and cast-iron arched glazed door\u003c\/li\u003e\n\u003cli\u003eConfigured at order with required door overlay and faceplate\/trim selections — see \"Where it can go\" for the options\u003c\/li\u003e\n\u003cli\u003e144 CFM variable-speed tangential blower with included thermodisc heat sensor for automatic on\/off\u003c\/li\u003e\n\u003cli\u003eAsh lip\u003c\/li\u003e\n\u003cli\u003eC-Cast baffle and stainless-steel secondary-air tube assembly\u003c\/li\u003e\n\u003cli\u003eRefractory firebrick lining\u003c\/li\u003e\n\u003cli\u003eRemovable wood-grip air-control handle\u003c\/li\u003e\n\u003cli\u003eLiner fixation brackets and hardware\u003c\/li\u003e\n\u003cli\u003eOwner's manual and product documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSold separately\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e6-inch continuous stainless-steel chimney liner kit (UL 1777, CAN\/ULC-S635, or CAN\/ULC-S640) — required for installation, sized to the chimney height\u003c\/li\u003e\n\u003cli\u003eHearth extension or floor protector sized per manual specifications, with R-value of at least 1.00 if hearth is raised less than 4 inches\u003c\/li\u003e\n\u003cli\u003eSheet-metal block-off plate, high-temp silicone, and mineral wool insulation — effectively required in practice for the insert to deliver rated performance\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch fresh-air intake kit (SBI AC01298) — for code jurisdictions requiring outside combustion air or for tight new-construction homes\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch × 4' insulated flex pipe for fresh-air intake (SBI AC02090) — HVAC type, ULC S110 or UL 181 class 0 or class 1\u003c\/li\u003e\n\u003cli\u003eOptional liner hook-up system (SBI AC02006) — simplifies liner-to-flue-collar connection\u003c\/li\u003e\n\u003cli\u003eOptional offset liner adapter (SBI AC01214) — for installations where the chimney throat geometry requires offset connection\u003c\/li\u003e\n\u003cli\u003eOptional rigid fire screen (SBI AC01281) — not permitted for open-door use in the United States or in Canadian provinces\/jurisdictions with particulate-emission limits; never leave the insert unattended when used with a fire screen\u003c\/li\u003e\n\u003cli\u003eOptional tempered glass hearth pad 10mm 18\" × 50\" (SBI AC02760)\u003c\/li\u003e\n\u003cli\u003ePin-type wood moisture meter — not optional in practice\u003c\/li\u003e\n\u003cli\u003eFlue thermometer — strongly recommended for insert installations since stove-top temperature isn't accessible\u003c\/li\u003e\n\u003cli\u003eInstallation by an authorized qualified technician (WETT, NFI, or CSIA certified) — required for warranty coverage and often required by code, permit, or insurance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow it actually performs\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe 110,000 BTU\/hr figure is a maximum-output rating based on dry cordwood at high loading density and short reload intervals. It is real, but it is a peak rating, not the average output across a full burn cycle of normal operation. The figure that matters for daily life is the sustained output across a full burn cycle, which lands in the 17,200–57,800 BTU\/hr band per the CSA B415.1-10 stack-loss method.\u003c\/p\u003e\n\n\u003cp\u003eA realistic burn cycle from a packed load of well-seasoned hardwood produces a fast warm-up, 2–3 hours of strong sustained heat, then a gradual decline over the next several hours with a heavy coal bed remaining. Total useful heat from one full pack is realistically 6–9 hours in normal heating use, occasionally approaching the 10-hour manufacturer maximum with dense hardwood, mild weather, and a full coal bed.\u003c\/p\u003e\n\n\u003cp\u003eThe 22-inch maximum log capacity is a practical advantage. Most firewood suppliers cut to 16 inches, which is also the manual's recommended length. An insert that takes up to 22 inches lets you load larger splits with less labor when your supplier cuts longer. The firebox accommodates loading over both width (E-W) and depth (N-S) — the 20 1\/8\" firebox depth is the deepest in the Osburn insert line and makes N-S loading practical for overnight loads. Owners regularly fit 8–10 medium splits N-S for full overnight burns.\u003c\/p\u003e\n\n\u003cp\u003eThe masonry around the insert acts as a thermal mass. Once the surrounding brick or stone is up to temperature, it continues radiating heat into the room well after the active fire has died down. This is one of the underappreciated benefits of an insert versus a freestanding stove — the masonry stores and releases heat on its own cycle. The first hour from a cold start is the slowest because that mass has to come up to temperature; once it's hot, response time is faster.\u003c\/p\u003e\n\n\u003cp\u003eThe included 144 CFM tangential blower meaningfully improves heat transfer from the air jacket into the room. There are two controls: a manual rheostat marked HI \/ LO \/ OFF that you set, and an automatic heat sensor (thermodisc) that decides when the blower actually runs. Set the rheostat to LO or HI, and the sensor handles the rest — the insert takes about an hour to reach blower-activation temperature from a cold start, then the sensor starts the blower automatically and shuts it off when the insert cools at the end of a burn. At lower settings the blower is unobtrusive; at higher settings it is audible.\u003c\/p\u003e\n\n\u003cp\u003eAllow the insert to reach operating temperature (approximately one hour from a cold start) before turning the blower to high speed. Per the manual, turning the blower on too early during start-up pulls heat away from the firebox and slows the build-up to clean combustion.\u003c\/p\u003e\n\n\u003cp\u003eAir-wash glass stays largely clear during proper hot burns at moderate-to-high air settings. At low burn rates with marginally seasoned wood, the glass will tar — universal to non-catalytic tube inserts, not specific to Osburn.\u003c\/p\u003e\n\n\u003cp\u003ePower-failure operation: the insert continues to burn safely without electricity — only the blower stops. Heat distribution drops noticeably without the blower because the masonry cavity absorbs most of the firebox radiation. Plan accordingly if you're buying this insert specifically as a power-outage heat source.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eTrade-offs to know\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe opening is the gating factor.\u003c\/strong\u003e The 26 1\/4\" × 31\" × 18 3\/8\" minimum masonry opening is meaningfully larger than the smaller Osburn inserts. The 31-inch minimum width in particular excludes a substantial percentage of older masonry fireplaces. Measure carefully before buying — and if the opening is borderline, the Osburn Matrix 2700 (31 3\/4\" minimum width but with different depth requirements) or the Osburn 1700-I (27 1\/2\" minimum width) is the right tool.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNon-catalytic burn time.\u003c\/strong\u003e A non-cat insert gives you simpler operation and no catalyst to replace, but you pay for it with shorter burns than a catalytic equivalent. If you want to load at 9 PM and have meaningful heat at 6 AM, this is not the right tool — that's what a catalytic or hybrid-catalytic insert is built for. Plan on reloading every 4–6 hours during active heating and accepting that overnight will end at coals.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood loading is a daily activity.\u003c\/strong\u003e A full load of dense hardwood is heavy and physically involved; in cold-climate primary-use patterns, wood handling becomes a daily chore, not an occasional task. Wood has to be split, stacked off the ground, top-covered, and seasoned to 15–20% moisture before use. Most local firewood suppliers can deliver hardwood by the cord; confirm whether they sell genuinely seasoned wood or plan to season it yourself.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eReload technique matters.\u003c\/strong\u003e Reload onto an active coal bed, open the air fully before opening the door, and open the door slowly to avoid smoke rollout. After reloading, run the air open until the new load is fully engaged, then reduce the air gradually. Owners on this platform consistently report that E-W loading is more sensitive to this than N-S — closing the door too soon when loading E-W causes the load to smolder. Do not leave the insert unattended with the door partly open.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGlass blackens at low burn rates.\u003c\/strong\u003e This is the non-cat tube design — secondary combustion only burns clean at higher temperatures. The fix is a daily hot burn cycle to clean off accumulated tar, dry wood at 20% moisture or below, and tolerance for a brief cleaning every few days during low-and-slow weather.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLiner, block-off plate, and labor are not in the appliance price.\u003c\/strong\u003e The insert is the appliance; the chimney liner, the block-off plate, the insulation wrap, and the professional installation are separate purchases that need to be planned for. Older or taller chimneys, offset flues, and damper-frame removal add to install complexity. Skipping the liner, the block-off plate, or the insulation wrap saves money up front and costs measurable performance and creosote durability after.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e540 lb shipping weight is heavy.\u003c\/strong\u003e Plan for three-person handling minimum and verify the installation route — stairs, narrow doorways, and tight masonry access make the install meaningfully harder than for smaller inserts. Several owner reports cite installation difficulty as the single hardest part of owning this insert.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlower auto-activation can be finicky.\u003c\/strong\u003e Owner reports occasionally cite blower thermodisc activation issues — the blower failing to engage automatically when the insert reaches operating temperature, or running constantly regardless of switch position. The issue is usually improper thermodisc seating against the insert body during installation; have the installer verify the sensor mounting before sign-off. Some owners report waiting over an hour for the blower to engage from a cold start, which is within manufacturer expectations but feels slow if you're used to a faster-responding insert.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePlain styling, finished by configuration.\u003c\/strong\u003e The Osburn 3500-I has clean, simple lines: a cast-iron arched door, a steel jacket, and a faceplate that flashes around the masonry opening. The eight visual configurations available through door overlay × faceplate size × trim finish dress it up considerably, but it is fundamentally a working appliance, not an ornate cast-iron showpiece. Buyers used to Vermont Castings, Jotul, or Woodstock decorative cast-iron inserts may find the styling honest rather than decorative.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eConfiguration is a one-time decision.\u003c\/strong\u003e Door overlay color, faceplate size, and trim finish are all configured at order, not field-swappable. The combinations let the insert fit many room layouts and aesthetics, but choose the configuration that matches the fireplace you're installing into — measure the opening and confirm the look before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood quality is not negotiable.\u003c\/strong\u003e The most common \"the insert doesn't heat\" complaint comes from owners running marginally seasoned wood. Secondary combustion works best with dry, properly seasoned fuel, ideally around 15–20% moisture. A pin-type moisture meter is the single best accessory for this insert.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHeavy-duty internals, functional finish.\u003c\/strong\u003e The welded carbon-steel firebox, C-Cast baffle, lifetime weld warranty, and 144 CFM blower are strong points for the category. The overall fit-and-finish is practical rather than luxury: this is a heating appliance first.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eOperating reality\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eFirst burns.\u003c\/strong\u003e The first three to six fires release paint VOCs as the high-temperature stove paint cures. The smell can be strong; ventilate the room well and avoid prolonged exposure during cure-in. Run the insert hot and expect the smell to disappear permanently after the cure-in.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLighting.\u003c\/strong\u003e The manual describes a top-down conventional method as effective on the Osburn 3500-I — small splits at the base, smaller splits crossed over, kindling on top, fire starter at the very top, light the top. Cleaner ignition, less smoke, faster to operating temperature. Leave the door slightly ajar for a few minutes during light-off; close once the fire is well established.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAir control.\u003c\/strong\u003e Single-lever, full open at light-off, then gradually closed only after the load is fully engaged and stable secondary flames are established. A flue thermometer is strongly recommended; without one, you are guessing at draft, burn rate, and overfire risk. Do not elevate the fire by using a grate.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eReload cadence.\u003c\/strong\u003e 4–6 hours between reloads in active high-output use; 6–8 hours for a final overnight pack with the air shut hard. Open the air, wait briefly, open the door slowly to avoid smoke rollout, rake coals forward, load onto the coal bed, close the door, and run the air open until the new load is fully engaged before reducing the air gradually. Turn the blower OFF before opening the door fully to reduce ash disturbance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBurn in cycles, not single-log feeds.\u003c\/strong\u003e The manual is explicit: do not attempt to produce steady heat output by placing a single log on the fire at regular intervals. Always place at least three (preferably more) pieces on the fire at a time so the heat radiated from one piece helps ignite the pieces next to it. Each load should provide several hours of heating.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAsh management.\u003c\/strong\u003e The Osburn 3500-I uses a hollow-bottom firebox; ash is scooped manually from the front. Empty ash every 2–3 days during full-time heating. The best time to remove ash is in the morning after an overnight fire when the insert is relatively cool but there is still some chimney draft to draw ash dust into the insert rather than into the room. Always dispose of ash in a tightly covered metal container on a non-combustible surface, well away from combustible materials — ash retains hot embers for days and releases carbon monoxide. Never store ashes indoors, in a non-metallic container, or on a wooden deck.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGlass cleaning.\u003c\/strong\u003e Damp newspaper dipped in cold ash, or a dedicated ceramic-glass cleaner. Daily wipe during low-burn weather; weekly during high-burn. Black streaks at the lower edge mean wet wood; black uniformly across the glass means burns are running too cool. Brown stains at the lower corners mean smoky combustion. Do not clean the glass when the insert is hot, and do not strike or slam the glass door shut.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoor and glass gaskets.\u003c\/strong\u003e Per the manual, the door gasket needs replacement when the paper-strip test fails: close the door on a strip of paper and try to pull it out; firm resistance means the gasket is sealing, easy pull means it's time to replace. Test all the way around the door, not just at the latch. The latch mechanism is adjustable — remove the split pin with pliers and turn the handle one counterclockwise turn to increase pressure. Plan on every 3–5 seasons in regular use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAnnual chimney sweep.\u003c\/strong\u003e Per the manual, the chimney and liner should be cleaned and inspected at least once each year. Inspect every two months during the heating season until you know your creosote-formation rate; monthly is safer for new burners. If buildup reaches 1\/8 inch, sweep immediately. The baffle and secondary tubes lift out for sweep access. Insert installations make sweeping more involved than freestanding stoves — many owners hire a CSIA-certified sweep rather than doing it themselves.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood seasoning.\u003c\/strong\u003e Hardwood needs 12–24 months split, stacked off the ground, top-covered, with sun and wind on the sides. Don't trust supplier \"seasoned\" claims — use a pin-type moisture meter, split a piece in half, measure the fresh face. Manual target: 15–20% moisture. Wood above 25% will smolder, soot the glass, line the chimney with creosote, and undercut every published efficiency and emissions number on this page.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlower maintenance.\u003c\/strong\u003e Keep the blower intake and fins free of dust. Vacuum dust accumulation annually. Do not oil the blower unless the manual specifically calls for lubrication. If the blower fails to engage automatically when the insert reaches operating temperature, have the installer or dealer inspect the thermodisc mounting and contact with the insert body — improper seating is the most common cause of auto-activation issues on this insert. Replacement blowers and related service parts are available through Osburn\/SBI dealers and parts channels if needed years out.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRefractory bricks and baffle.\u003c\/strong\u003e The intense heat of the fire can cause slight cracks in the refractory bricks — minor cracks do not reduce effectiveness. Inspect periodically and replace any wider cracks. The baffle and secondary tubes can be removed for sweep access and inspection. Operation with a cracked or missing baffle may cause unsafe temperatures and voids the warranty.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eChimney fire response.\u003c\/strong\u003e If a chimney fire occurs: close the insert door and the air-intake control, alert occupants, contact the fire department if assistance is needed, use a dry chemical fire extinguisher or baking soda or sand to control the fire (never water — it causes a dangerous steam explosion), and do not use the appliance again until the insert and chimney have been inspected by a qualified chimney sweep or fire-department inspector.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat never to burn.\u003c\/strong\u003e Per the manual and EPA fuel rules: no coal, garbage, yard waste, materials containing rubber or plastic, waste petroleum products, paint or paint thinners, asphalt products, painted or pressure-treated wood, railroad ties, manure or animal remains, plywood, particle board, paper products, asbestos materials, construction or demolition debris, salt-water driftwood, or unseasoned wood. This does not prohibit normal fire starters made from paper, cardboard, sawdust, wax, or similar substances when used only to start a fire. Burning prohibited materials destroys the firebox, voids the warranty, and releases toxic compounds into your home and the chimney.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWarranty and service\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe Osburn limited lifetime warranty applies to the original retail purchaser only and is non-transferable. The warranty applies to normal residential use only. Proof of purchase (dated bill of sale), model name, and serial number are required for any warranty claim. Online registration is recommended at osburn-mfg.com but not required if a dated invoice is retained.\u003c\/p\u003e\n\n\u003ch3\u003eCoverage by component\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eComponent\u003c\/span\u003e\u003cspan\u003eParts\u003c\/span\u003e\u003cspan\u003eLabor\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustion chamber welds, cast-iron door frame\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCeramic glass, plating manufacturing defects, convector air-mate\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eSurrounds, heat shields, trims, C-Cast baffle, secondary air tubes\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e7 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHandle assembly, glass retainers, air control mechanism\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e3 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eRemovable carbon-steel firebox components\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eBlower, heat sensors, switches, rheostat, wiring, electronics\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e2 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePaint (peeling), gaskets, insulation, ceramic fiber blankets, and other options\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eReplacement parts under warranty\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e90 d\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eA one-time replacement limit applies to all parts with lifetime coverage. Warranty is void if the unit is used to burn anything other than seasoned cordwood, or if it is not operated according to the owner's manual. Damage caused by misuse, improper installation, lack of maintenance, overfiring, downdrafts, venting problems, or under-estimated heating area is not covered. Improper installation by anyone other than an authorized qualified technician voids the warranty.\u003c\/p\u003e\n\n\u003cp\u003eWarranty claims are made through your Osburn dealer and remain subject to SBI\/Osburn inspection, approval, and the current written warranty. Kaminos is the retailer for this insert and supports buyers through purchase; final warranty approval rests with SBI as the manufacturer. SBI's parts network is well-stocked — replacement bricks, baffle, secondary tubes, glass, gaskets, and blower are openly available at fair prices through multiple parts vendors.\u003c\/p\u003e\n\n\u003cp class=\"warranty-note\"\u003eOsburn may require photos or returned parts to support a claim; repair work covered by warranty requires prior manufacturer approval.\u003c\/p\u003e\n\n\u003cp class=\"warranty-note\"\u003eCoverage details can change by component and warranty revision; the current Osburn warranty controls.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCompare with\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eEnerzone Solution 3.5 Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eEnerzone-branded sibling on the same SBI 3500 chassis. Same 3.5 ft³ firebox, same 110,000 BTU\/hr maximum, same 22-inch log capacity, same 144 CFM blower, same 71% HHV efficiency, same 1.6 g\/hr emissions, same 10-hour burn time, same minimum masonry opening, same warranty schedule. The difference is aesthetic and brand tier: the Osburn 3500-I adds the configurable cast-iron door overlay (Black or Brushed Nickel) on top of the faceplate\/trim choices; the Enerzone has the silver-grooved styling without the door-overlay configurability. Choose the Osburn 3500-I for the door-overlay customization and the premium Osburn positioning; choose the Enerzone for the silver-grooved styling at the Enerzone price point.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eOsburn Matrix 2700 Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eStep-down sibling in the Osburn insert line. Smaller 2.5 ft³ firebox, 80,000 BTU\/hr maximum, 750–2,200 sq ft heating range, 20-inch log capacity, 8-hour maximum burn, 64% HHV efficiency, 1.2 g\/hr emissions (class-leading for Osburn), 176 CFM blower. Contemporary flush-mount cast-iron faceplate with the largest viewing window in the Osburn line. Different masonry depth requirement (22 1\/8\" vs the 3500-I's 18 3\/8\"). Choose the Matrix 2700 for the contemporary flush-mount aesthetic, the cleaner-burning 1.2 g\/hr emissions, and the larger viewing window; choose the 3500-I for the larger firebox, longer burn cycles, and primary-heat capacity above 2,200 sq ft.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eOsburn 1700-I Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eSmaller step-down sibling in the Osburn insert line. 1.86 ft³ firebox, 65,000 BTU\/hr maximum, 500–1,800 sq ft heating range, 18-inch log capacity, 7-hour maximum burn, 144 CFM blower. Configurable Regular\/Large faceplate in Black or Brushed Nickel plus configurable door overlay. Much smaller masonry opening required (21 1\/2\" × 27 1\/2\" × 12 7\/8\"). Choose the 1700-I for shallower masonry openings, smaller spaces, or as a step-down from the 3500-I when 1,800+ sq ft heating isn't needed.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003ePacific Energy Summit Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eCross-brand competitor in the large insert class. Comparable firebox volume and heating capacity, Pacific Energy's well-regarded sealed-firebox technology with single-lever non-cat operation, premium build, higher price. The most common cross-shop with the Osburn 3500-I for buyers weighing premium Pacific Energy fit-and-finish against the SBI dealer\/parts accessibility and the Osburn price point.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eBlaze King Princess Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eDifferent category — catalytic technology, thermostatic air control, and 12–30 hour low-output burn potential. Choose this if your priority is overnight burn time, controllability, or off-grid heating with fewer reloads. Higher price, requires catalyst monitoring and eventual replacement, longer learning curve. The 3500-I wins on simplicity, peak heat output, and dealer\/parts accessibility.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cp class=\"pull\"\u003eThe Osburn 3500-I is the dressed-up sibling of the Enerzone Solution 3.5 Insert and the powerhouse of the Osburn insert line. Same firebox, same heat, same install — what you're buying is the configurable cast-iron door overlay, the faceplate sizing and trim choices, and the Osburn premium-tier finish. If those matter to the room, and the masonry opening is big enough to take it, this is the right one.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Osburn","offers":[{"title":"Black \/ Black","offer_id":49276992848065,"sku":"OB03510+OA10163+OA10032+OA10125","price":4279.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Brushed Nickel","offer_id":49276992913601,"sku":"OB03510+OA10163+OA10032+OA10126","price":4279.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Large Black","offer_id":49276993241281,"sku":"OB03510+OA10163+OA10033+OA10128","price":4279.0,"currency_code":"USD","in_stock":true},{"title":"Black \/ Large Brushed Nickel","offer_id":49276993306817,"sku":"OB03510+OA10163+OA10033+OA10129","price":4279.0,"currency_code":"USD","in_stock":true},{"title":"Brushed nickel \/ Black","offer_id":49276992880833,"sku":"OB03510+OA10164+OA10032+OA10125","price":4499.0,"currency_code":"USD","in_stock":true},{"title":"Brushed nickel \/ Brushed Nickel","offer_id":49276992946369,"sku":"OB03510+OA10164+OA10032+OA10126","price":4499.0,"currency_code":"USD","in_stock":true},{"title":"Brushed nickel \/ Large Black","offer_id":49276993274049,"sku":"OB03510+OA10164+OA10033+OA10128","price":4499.0,"currency_code":"USD","in_stock":true},{"title":"Brushed nickel \/ Large Brushed Nickel","offer_id":49276993339585,"sku":"OB03510+OA10164+OA10033+OA10129","price":4499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/osburn-3500-i-wood-insert-front-ob03510_b6e29d4f-90d0-41d8-be2a-035b93d56a69.webp?v=1748291614"},{"product_id":"osburn-matrix-2700-wood-insert","title":"Osburn Matrix 2700 Wood Insert","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #231F20; line-height: 1.55; width: 100%; max-width: 100%; box-sizing: border-box; margin: 0; padding: 0; font-size: 16px; overflow-wrap: break-word; word-wrap: break-word; word-break: normal;\"\u003e\n\n\u003cstyle\u003e\n  .km-desc, .km-desc * { box-sizing: border-box; max-width: 100%; }\n  .km-desc { width: 100%; }\n  .km-desc p { margin: 0 0 14px; }\n  .km-desc h3 { font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px; font-weight: 600; color: #9B774D; margin: 22px 0 10px; }\n  .km-desc .spec-list { margin: 12px 0 0; }\n  .km-desc .spec-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .spec-row:first-child { border-top: 1px solid rgba(75,72,75,0.35); padding-top: 14px; }\n  .km-desc .spec-label { font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px; font-weight: 600; color: #4B484B; margin-bottom: 6px; }\n  .km-desc .spec-value { font-weight: 600; font-size: 15px; color: #231F20; margin-bottom: 6px; line-height: 1.35; }\n  .km-desc .spec-meaning { color: #4B484B; font-size: 13px; line-height: 1.55; }\n  @media (min-width: 720px) {\n    .km-desc .spec-row { display: grid; grid-template-columns: 38% 30% 1fr; gap: 16px; align-items: start; padding: 12px 0; }\n    .km-desc .spec-label { margin-bottom: 0; align-self: center; }\n    .km-desc .spec-value { margin-bottom: 0; font-size: 14px; align-self: center; }\n    .km-desc .spec-meaning { font-size: 13px; }\n    .km-desc .spec-row:first-child { padding-top: 12px; }\n  }\n  .km-desc .data-row { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; padding: 12px 0; border-bottom: 1px solid rgba(75,72,75,0.12); align-items: baseline; font-size: 13px; }\n  .km-desc .data-head + .data-row { border-top: 1px solid rgba(75,72,75,0.35); }\n  .km-desc .data-row .data-label { color: #4B484B; line-height: 1.4; }\n  .km-desc .data-row .data-val { font-weight: 600; color: #231F20; text-align: right; min-width: 56px; }\n  .km-desc .data-head { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; padding-bottom: 8px; font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px; font-weight: 600; color: #4B484B; }\n  .km-desc .data-head span:nth-child(2), .km-desc .data-head span:nth-child(3) { text-align: right; min-width: 56px; }\n  .km-desc ul { list-style: none; padding: 0; margin: 10px 0 14px; }\n  .km-desc ul li { padding: 4px 0 4px 18px; position: relative; line-height: 1.55; }\n  .km-desc ul li:before { content: \"—\"; position: absolute; left: 0; color: #9B774D; font-weight: 500; }\n  .km-desc .compare-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .compare-row:last-child { border-bottom: 0; }\n  .km-desc .compare-name { font-weight: 600; color: #231F20; display: inline-block; padding-bottom: 1px; }\n  .km-desc .compare-orient { color: #4B484B; margin-top: 4px; font-size: 13px; line-height: 1.5; }\n  .km-desc .pull { font-style: italic; font-size: clamp(16px, 4.2vw, 22px); line-height: 1.4; color: #231F20; border-left: 2px solid #9B774D; padding: 0 0 0 16px; margin: 32px 0 16px; }\n  .km-desc .lede { font-size: clamp(16px, 4vw, 22px); line-height: 1.4; letter-spacing: -0.2px; font-weight: 400; color: #231F20; margin: 0 0 24px; }\n  .km-desc .warranty-note { font-size: 12px; color: #4B484B; font-style: italic; margin-top: 14px; }\n  .km-desc details { border-top: 1px solid rgba(75,72,75,0.18); margin: 0; padding: 0; }\n  .km-desc details:last-of-type { border-bottom: 1px solid rgba(75,72,75,0.18); }\n  .km-desc details \u003e summary { list-style: none; cursor: pointer; padding: 18px 32px 18px 0; position: relative; font-size: clamp(16px, 4.2vw, 20px); line-height: 1.3; font-weight: 500; color: #231F20; letter-spacing: -0.2px; }\n  .km-desc details \u003e summary::-webkit-details-marker { display: none; }\n  .km-desc details \u003e summary::after { content: \"+\"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-size: 22px; font-weight: 300; color: #9B774D; line-height: 1; }\n  .km-desc details[open] \u003e summary::after { content: \"−\"; }\n  .km-desc details \u003e summary:focus-visible { outline: 2px solid #9B774D; outline-offset: 4px; }\n  .km-desc details \u003e .acc-body { padding: 0 0 28px 0; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"km-desc\"\u003e\n\n\u003cp class=\"lede\"\u003eA 2.5 ft³ non-catalytic large wood insert built around a contemporary cast-iron faceplate with the largest viewing window in the Osburn insert line — 24 3\/8\" × 12 5\/8\" of ceramic glass set flush into a masonry fireplace. EPA 2020 cordwood certified at 1.2 g\/hr published average particulate emissions (well below the 2.5 g\/hr cordwood limit), with a 20-inch maximum east-west log capacity, up to 2,200 sq ft of heating area, an 8-hour maximum burn time, 80,000 BTU\/hr maximum output, and a powerful 176 CFM heat-activated blower included as standard. Configurable Black or Brushed Nickel cast-iron door overlay.\u003c\/p\u003e\n\n\u003cdetails open\u003e\n\u003csummary\u003eWho this is for\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003ch3\u003eRight buyer\u003c\/h3\u003e\n\u003cp\u003eOwners of a working masonry fireplace with a large opening who want to convert an inefficient open hearth into a serious primary heat source — up to 2,200 sq ft of zone heating capability with a 2.5 ft³ firebox, 20-inch log capacity, and an 8-hour maximum burn cycle. Reasonable insulation, access to seasoned hardwood at 15–20% moisture, and an existing masonry fireplace that meets the minimum opening dimensions (27 1\/8\" H × 31 3\/4\" W × 22 1\/8\" D per manual) are the basic requirements.\u003c\/p\u003e\n\n\u003cp\u003eBuyers heating 1,500–2,000 sq ft as primary winter heat in moderate climates, or 1,200–1,500 sq ft in cold climates and older homes. The Matrix 2700 sits in the upper-middle of the Osburn insert line — meaningfully more firebox than the 1700-I, with a different aesthetic and heat-distribution profile from the larger 3500-I.\u003c\/p\u003e\n\n\u003cp\u003eBuyers prioritizing low emissions. At 1.2 g\/hr published average particulate emissions, the Matrix 2700 is class-leading among Osburn wood inserts and well below the EPA 2020 cordwood limit (2.5 g\/hr). For EPA non-attainment counties, jurisdictions with stricter local emission rules, or buyers who simply want the cleanest-burning insert available in this size class, this is the right tool.\u003c\/p\u003e\n\n\u003cp\u003eBuyers who want a contemporary aesthetic and the largest viewing window. The 24 3\/8\" × 12 5\/8\" wide-format ceramic glass is the largest in the Osburn insert line, set into a flush-mount cast-iron faceplate that sits cleanly inside the existing masonry opening rather than projecting forward. Wide picture-frame proportions, configurable cast-iron door overlay in Black or Brushed Nickel.\u003c\/p\u003e\n\n\u003cp\u003eBuyers who want the most powerful blower in the Osburn insert lineup. The 176 CFM heat-activated double-cage blower meaningfully outperforms the 144 CFM blowers used in the smaller and larger Osburn inserts. For an insert — where most of the firebox sits inside the masonry cavity — blower CFM is what gets the heat into the room.\u003c\/p\u003e\n\n\u003ch3\u003eWrong buyer\u003c\/h3\u003e\n\u003cp\u003eNot for buyers without an existing code-compliant masonry fireplace with a large opening. Wood inserts must be installed inside a lined masonry fireplace with a continuous stainless-steel chimney liner running the full height. This insert requires a substantial opening (27 1\/8\" H × 31 3\/4\" W × 22 1\/8\" D per manual) — many older or smaller fireplaces will not accept it. Not approved for factory-built (prefab) metal fireplaces, mobile homes, alcoves, or freestanding installation.\u003c\/p\u003e\n\n\u003cp\u003eNot for buyers heating under 1,200 sq ft. The 2.5 ft³ firebox will overheat a smaller space and force you to run it inefficiently. For smaller spaces, step down to the Osburn 1700-I.\u003c\/p\u003e\n\n\u003cp\u003eNot for buyers expecting 10+ hour overnight burns. The 8-hour manufacturer maximum is achievable on a packed load of dense hardwood with the air shut down hard, but useful heat from a packed load is realistically 6–7 hours. For longer burns, consider a catalytic insert in this size class.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eAt a glance\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cdiv class=\"spec-list\"\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion technology\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNon-catalytic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eSecondary-air tubes reignite smoke gases. No catalyst to replace; one air-control lever; simpler operation than a cat insert but shorter low-and-slow burn times.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eInstallation type\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMasonry insert\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInstalls inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. Not approved for factory-built fireplaces, mobile homes, alcoves, or freestanding installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFirebox volume\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e2.5 ft³ overall \/ 1.94 ft³ EPA\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Large firebox sized for primary zone heating across 750–2,200 sq ft. The overall figure includes a buffer zone above the EPA loading line; the 1.94 ft³ figure is the usable loading volume used during EPA emissions certification.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum heat output\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e80,000 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePeak output on dry cordwood, transient. Sustained output across a burn cycle is substantially lower.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eTested output range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e12,700–60,700 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer CSA B415.1-10 stack-loss method. A wide tested range — the Matrix 2700 delivers usable heat from very low burn rates suitable for shoulder-season heating up through strong sustained output for cold-snap heating.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eHeating range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e750–2,200 sq ft\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer's stated range. Real-world comfort sizing for primary heat is roughly 1,500–2,000 sq ft in moderate climates and lower in cold climates or older homes — depends on insulation, layout, climate, ceiling height, fuel quality, and installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eAverage efficiency\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e64% HHV \/ 68% LHV\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003e70% optimum overall efficiency at low burn rate; 68% optimum heat transfer efficiency. HHV is the federal standard. Lower than smaller inserts in the Osburn line — the 2700 trades efficiency for class-leading emissions performance and higher BTU capacity. Government incentives may apply by jurisdiction and installation date.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eParticulate emissions\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e1.2 g\/hr (published average)\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manufacturer's published spec table. EPA 2020 limits are 2.0 g\/hr crib-wood or 2.5 g\/hr cordwood. The Matrix 2700's published rate is class-leading among Osburn wood inserts and well below the federal limit — a meaningful advantage in EPA non-attainment counties and jurisdictions with stricter local rules.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum burn time\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUp to 8 hours\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer maximum at the lowest air setting. Useful heat through a burn cycle is realistically 6–7 hours.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eRecommended log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e16 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Most firewood suppliers cut to this length.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e20 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003e4-inch margin over the recommended length — meaningful for buyers with access to longer-cut firewood. Logs load across the width of the firebox, sides visible from the door.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eConstruction\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eCarbon steel, cast-iron faceplate and door\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eWelded carbon-steel firebox with a flush-mount cast-iron faceplate and a glazed cast-iron door. 3\/16\" body, 3\/16\" top. Lifetime warranty on the combustion-chamber welds.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDoor overlay\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eBlack or Brushed Nickel\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eCast-iron door overlay across the front of the door. Configurable at order — one overlay is required to complete the unit. The signature Osburn finish detail that distinguishes the Matrix 2700 from the louvered Enerzone Destination 2.7.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eGlass\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e24 3\/8\" × 12 5\/8\", ceramic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eLargest viewing window in the Osburn insert line. Wide-format ceramic glass with air-wash, 5\/32\" (4 mm) thick, tested to 1,400 °F per manual. The horizontal picture-frame proportions make the glass the visual focus of the unit. Replacement glass must be SCHOTT ceramic with the same specification — tempered or ordinary glass will not withstand the operating temperatures.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBlower\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eIncluded, up to 176 CFM\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Powerful double-cage heat-activated blower with rheostat speed control and thermodisc auto-on. The most powerful blower in the Osburn insert line. Three-position switch: AUTO (starts when insert is hot, stops when cool), MANUAL (runs continuously), or OFF.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBaffle\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eC-Cast\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eRigid aluminosilicate fiber baffle rated above 2,000 °F.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFlue connection\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e6 in (insert liner)\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eTop of the unit. Requires a continuous stainless-steel chimney liner running the full height of the masonry chimney. Liner must conform to UL 1777 (USA), CAN\/ULC-S635, or CAN\/ULC-S640 (Canada). Per manual, minimum chimney height 15 feet. Sold separately.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion chamber\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e22 5\/8\" W × 12 7\/8\" D × 12 3\/8\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInside firebox dimensions per manufacturer spec. Designed for east-west loading across the width of the firebox. North-south loading is not practical at this depth.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDoor opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e25 3\/8\" W × 10 1\/2\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eWide horizontal loading door opening — significantly wider than smaller inserts in the line. Accommodates 20-inch logs loaded east-west with room to spare.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eOverall dimensions\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e43 5\/8\" W × 27 1\/4\" D × 30 1\/8\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eOverall appliance dimensions including the cast-iron faceplate.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMinimum masonry opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e27 1\/8\" H × 31 3\/4\" W × 22 1\/8\" D\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Substantial opening required — measure carefully before ordering. See \"Where it can go\" for projection kit and cuttable faceplate options.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eShipping weight\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e535 lb\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePlan for multi-person handling — three-person minimum is reasonable for this weight class. Remove loose internal components as appropriate during installation to reduce handling weight.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMobile home approved\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNo\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eNot certified for mobile-home installation under any configuration.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCountry of origin\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMade in Canada\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufactured by Stove Builder International (SBI) in Saint-Augustin-de-Desmaures, Quebec.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhere it can go\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe Matrix 2700 is approved only for installation inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. It is not approved for installation in factory-built (prefab) metal fireplaces, in mobile or manufactured homes, in alcoves, or as a freestanding unit. The masonry fireplace and chimney must be inspected before installation for cracks, loose mortar, creosote, blockage, or other signs of deterioration.\u003c\/p\u003e\n\n\u003ch3\u003eMinimum masonry opening\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eDimension\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHeight\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27 1\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eWidth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e31 3\/4\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eDepth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e22 1\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eIf a fresh-air intake is being installed, add at least 4 inches to the width. Plan for a small installation margin above the insert to seat the liner adapter — an opening exactly at the minimum will be a tight install. Measure carefully before ordering. The 22 1\/8\" minimum depth is meaningfully deeper than smaller Osburn inserts and is the most common reason this insert does not fit a shallower hearth.\u003c\/p\u003e\n\n\u003ch3\u003eProjection kit (optional)\u003c\/h3\u003e\n\u003cp\u003eIf the fireplace depth is less than the minimum 22 1\/8\", the optional projection kit (SBI AC01263) extends the insert 2 or 4 inches forward of the fireplace facing. With the kit installed, the depth requirement reduces to 20 1\/8\" (2\" projection) or 18 1\/8\" (4\" projection). Ordered as a separate accessory.\u003c\/p\u003e\n\n\u003ch3\u003eFaceplate options\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eConfiguration\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eSize\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eStandard faceplate (included)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e30 1\/8\" × 43 5\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCuttable faceplate (optional, SBI AC01277)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e34\" × 50\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eThe standard cast-iron faceplate covers most masonry openings. For larger openings, the optional 18-gauge cuttable faceplate extends the cover area — the edges can be trimmed to contour an arched fireplace or to minimize visible flashing. The door overlay (Black or Brushed Nickel) is configured at order — one overlay is required to complete the unit.\u003c\/p\u003e\n\n\u003ch3\u003eClearances to combustibles\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eSurface\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eAdjacent combustible side wall\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e19\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eFaceplate to combustible side mantel\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e9 1\/2\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eFaceplate to combustible top mantel\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e12\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eTop of insert to combustible shelf\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e12\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePlatform \/ floor protection to ceiling\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e84\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eThe certification label on the back of the insert always overrides clearance figures published elsewhere. Reduced clearances are not available by means of heat shields on this insert — the figures above are the binding minimums.\u003c\/p\u003e\n\n\u003ch3\u003eFloor protection\u003c\/h3\u003e\n\u003cp\u003eFloor protection requirements depend on whether the projection kit is installed and whether the existing masonry hearth is raised above the surrounding combustible floor. Without the projection kit, the manual requires a non-combustible floor protector extending at least 18 inches in front of the unit in Canada or 16 inches in the USA, measured from the door opening. If the masonry hearth is level with or only slightly raised above the surrounding combustible floor, an R-value floor protector may be required per the manual's floor-protection worksheet. With the projection kit installed, the forward extension threshold increases. The manual includes a thermal-resistance lookup table for common floor protection materials (brick, cement board, ceramic tile, marble) to calculate the required R-value combination. Tile alone is not sufficient — the manual requires a continuous non-combustible sheet beneath any tile installation. Final hearth protection must be calculated from the manual's floor-protection worksheet and approved by the installer\/AHJ.\u003c\/p\u003e\n\n\u003ch3\u003eChimney and liner\u003c\/h3\u003e\n\u003cp\u003eThe Matrix 2700 requires a continuous 6-inch stainless-steel chimney liner extending from the insert flue collar to the top of the chimney. The liner must conform to ULC S635, CAN\/ULC-S640 (Canada) or UL 1777 (USA) and be rated for solid fuel. The minimum liner height is 15 feet, subject to installer verification, certification label, draft conditions, and local code. The chimney must extend at least 3 feet above the highest point of contact with the roof and at least 2 feet above any roof line or obstacle within 10 feet horizontally.\u003c\/p\u003e\n\n\u003cp\u003eThe Matrix 2700 performs best with a 6-inch stainless-steel chimney liner. In the USA, use a 6-inch liner listed to UL 1777. In Canada only, connection to a chimney liner of at least 5 inches may be permitted if it properly vents combustion gases, the total masonry chimney height is greater than 20 feet, and the application is verified and authorized by a qualified installer. The insert is not approved for a positive flue connection to clay tile — a continuous stainless liner is required.\u003c\/p\u003e\n\n\u003cp\u003eIf the existing fireplace's throat damper is to remain, it must be locked open to clear the liner; otherwise the damper plate must be removed. A sheet-metal block-off plate sealed at the damper level (or, in Canada per CSA B365, mineral wool packing around the liner) is recommended at the throat to reduce cold-air backdraft and to allow the insert to deliver rated performance — without it, jacket-recovered heat is lost into the smoke chamber. An insulated liner (or pre-insulated liner with a wrap) improves draft and reduces creosote, and is required by code in some jurisdictions for clearance reasons.\u003c\/p\u003e\n\n\u003ch3\u003eOutside air\u003c\/h3\u003e\n\u003cp\u003eAn optional fresh-air intake kit is available for code jurisdictions requiring outside combustion air or for tight new-construction homes with mechanical ventilation. In conventional homes the manual identifies room air as the safest and most reliable supply for combustion; almost all houses have enough natural leakage to provide what the insert needs. A smoke detector and carbon monoxide detector are required in the room where the insert is installed.\u003c\/p\u003e\n\n\u003ch3\u003eCode compliance\u003c\/h3\u003e\n\u003cp\u003eCode compliance for any specific installation is determined by the local Authority Having Jurisdiction. Manufacturer listings cover what the insert is approved for; the AHJ approves what is permitted at your address. A WETT (Canada), NFI, or CSIA (USA) certified installer is strongly recommended and frequently required by code, permit, or insurance. In Canada the CSA B365 standard applies; in the USA, ANSI NFPA 211 applies. Confirm local requirements before purchasing — particularly in EPA non-attainment counties and in HOA jurisdictions where new wood-burning installs may be restricted.\u003c\/p\u003e\n\n\u003ch3\u003eCalifornia Proposition 65\u003c\/h3\u003e\n\u003cp\u003eThis product can expose you to chemicals including carbon monoxide, which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.P65warnings.ca.gov.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat's in the box, what you'll add\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003ch3\u003eShips with the insert\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOsburn Matrix 2700 wood insert (OB02700) with welded carbon-steel firebox and cast-iron glazed door\u003c\/li\u003e\n\u003cli\u003eStandard cast-iron faceplate (30 1\/8\" × 43 5\/8\")\u003c\/li\u003e\n\u003cli\u003eConfigured at order with required door overlay selection — see \"Where it can go\" for the options\u003c\/li\u003e\n\u003cli\u003e176 CFM heat-activated double-cage blower assembly with rheostat speed control and three-position switch (AUTO \/ OFF \/ MANUAL)\u003c\/li\u003e\n\u003cli\u003eC-Cast baffle and stainless-steel secondary-air tube assembly\u003c\/li\u003e\n\u003cli\u003eMoulded refractory bricks lining (floor, sides, back)\u003c\/li\u003e\n\u003cli\u003eAdjustable threaded legs\u003c\/li\u003e\n\u003cli\u003eRemovable air-control handle\u003c\/li\u003e\n\u003cli\u003eLiner fixation brackets and hardware\u003c\/li\u003e\n\u003cli\u003eOwner's manual and product documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSold separately\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e6-inch continuous stainless-steel chimney liner kit (UL 1777, CAN\/ULC-S635, or CAN\/ULC-S640) — required for installation, sized to the chimney height\u003c\/li\u003e\n\u003cli\u003eHearth extension or floor protector sized per manual specifications, extending at least 16 inches in front of the unit in the USA, 18 inches in Canada\u003c\/li\u003e\n\u003cli\u003eSheet-metal block-off plate, high-temp silicone, and mineral wool insulation — effectively required in practice for the insert to deliver rated performance\u003c\/li\u003e\n\u003cli\u003eOptional projection kit, 2\" or 4\" (SBI AC01263) — for installations where the fireplace depth is less than the 22 1\/8\" minimum\u003c\/li\u003e\n\u003cli\u003eOptional 34\" × 50\" cuttable faceplate, 18 GA (SBI AC01277) — for masonry openings larger than the standard faceplate covers\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch fresh-air intake kit (SBI AC01298) — for code jurisdictions requiring outside combustion air or for tight new-construction homes\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch × 4' insulated flex pipe for fresh-air intake (SBI AC02090) — HVAC type, ULC S110 or UL 181 class 0 or class 1\u003c\/li\u003e\n\u003cli\u003eOptional firescreen door (SBI AC01275) — for occasional attended fire viewing only where permitted by local code and only when used exactly as instructed in the fire screen manual; never leave the insert unattended when used with a fire screen\u003c\/li\u003e\n\u003cli\u003eOptional liner hook-up system (SBI AC02006) — simplifies liner-to-flue-collar connection\u003c\/li\u003e\n\u003cli\u003eOptional offset liner adapter (SBI AC01214) — for installations where the chimney throat geometry requires offset connection\u003c\/li\u003e\n\u003cli\u003eOptional tempered glass hearth pad 10mm 18\" × 50\" (SBI AC02760)\u003c\/li\u003e\n\u003cli\u003ePin-type wood moisture meter — not optional in practice\u003c\/li\u003e\n\u003cli\u003eFlue thermometer — strongly recommended for insert installations since stove-top temperature isn't accessible\u003c\/li\u003e\n\u003cli\u003eInstallation by an authorized qualified technician (WETT, NFI, or CSIA certified) — required for warranty coverage and often required by code, permit, or insurance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow it actually performs\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe 80,000 BTU\/hr maximum is a peak rating, transient, achieved on dry cordwood at high loading density and short reload intervals. It is real, but it is a peak rating, not the average output across a full burn cycle of normal operation. The figure that matters for daily life is the sustained output across a full burn cycle, which lands in the 12,700–60,700 BTU\/hr band per the CSA B415.1-10 stack-loss method — a wide range covering shoulder-season heating on the low end and serious cold-snap output on the high end.\u003c\/p\u003e\n\n\u003cp\u003eA realistic burn cycle from a packed load of well-seasoned hardwood produces a 30–45 minute warm-up, 2–3 hours of strong sustained heat once the firebox and surrounding masonry come up to temperature, then a gradual decline over the next 3–4 hours with a coal bed remaining. Total useful heat from one full pack is realistically 6–7 hours, occasionally approaching the 8-hour manufacturer maximum with dense hardwood, mild weather, and a packed coal bed.\u003c\/p\u003e\n\n\u003cp\u003eThe masonry around the insert acts as a thermal mass. Once the surrounding brick or stone is up to temperature, it continues radiating heat into the room well after the active fire has died down. This is one of the underappreciated benefits of an insert versus a freestanding stove — the masonry stores and releases heat on its own cycle. The first hour from a cold start is the slowest because that mass has to come up to temperature; once it's hot, response time is faster.\u003c\/p\u003e\n\n\u003cp\u003eThe 176 CFM heat-activated double-cage blower is what gets the heat into the room. Because most of the insert's firebox sits inside the masonry cavity, the radiant heat that would otherwise reach the room from a freestanding stove is partly absorbed by the surrounding brick. The convection jacket around the firebox captures that heat and the blower pushes it out into the room. The 176 CFM rating is the strongest in the Osburn insert line — meaningful for an insert in this size class. The rheostat lets you dial speed down for quieter operation once the room is up to temperature.\u003c\/p\u003e\n\n\u003cp\u003eWith the switch in AUTO, the blower starts automatically once the insert is hot enough and stops when it cools — set the position and forget about it. With the switch in MANUAL, the blower runs continuously regardless of insert temperature. Allow the insert to reach operating temperature (approximately one hour from a cold start) before turning the blower to MANUAL. Per the manual, turning the blower on too early during start-up pulls heat away from the firebox and slows the build-up to clean combustion.\u003c\/p\u003e\n\n\u003cp\u003eAir-wash glass stays largely clear during proper hot burns at moderate-to-high air settings. At low burn rates with marginally seasoned wood, the glass will tar. This is universal to non-catalytic inserts, not specific to Osburn. The wide-format glass — largest in the Osburn insert line — makes glass cleanliness more visually important than on smaller inserts.\u003c\/p\u003e\n\n\u003cp\u003ePower-failure operation: the insert continues to burn safely without electricity — only the blower stops. Heat distribution drops noticeably without the blower because the masonry cavity absorbs most of the firebox radiation. Plan accordingly if you're buying this insert specifically as a power-outage heat source.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eTrade-offs to know\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eLarge appliance, large masonry opening required.\u003c\/strong\u003e The 2700's minimum opening of 27 1\/8\" H × 31 3\/4\" W × 22 1\/8\" D is substantial. Many older or smaller fireplaces will not accept it — particularly the 22 1\/8\" depth requirement, which is deeper than most other inserts in the Osburn line. Measure carefully before ordering — this is the most common reason a Matrix 2700 purchase falls apart at the installation stage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eEfficiency is lower than smaller siblings.\u003c\/strong\u003e 64% HHV is lower than the 68% HHV on the Osburn 1700-I and 71% HHV on the 3500-I. The Matrix 2700's standout numbers are the class-leading published emissions rate and the 80,000 BTU\/hr output, not efficiency. Buyers comparing efficiency numbers across the line should know this going in — it's a real trade-off.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLow published emissions is the headline.\u003c\/strong\u003e If emissions matter for your jurisdiction (EPA non-attainment counties, stricter local rules, future regulatory changes), the Matrix 2700's 1.2 g\/hr published average particulate emissions are class-leading among Osburn wood inserts. For many buyers this is the single best reason to pick the 2700 over the 3500-I.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePowerful blower, audible blower.\u003c\/strong\u003e The 176 CFM blower delivers strong heat distribution but is more audible than the smaller blowers on other inserts in the line. The rheostat lets you dial speed down for quieter operation when the room is up to temperature; high speed is most useful during the active heat-output phase of the burn cycle. Multiple owner reports describe the blower as noticeably loud at higher settings.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlower auto-activation can be finicky.\u003c\/strong\u003e A meaningful number of owner reports cite blower thermodisc activation issues — the blower failing to engage in AUTO when the insert reaches operating temperature, or running constantly regardless of switch position. The issue is usually improper thermodisc seating against the insert body during installation; have the installer verify the sensor mounting before sign-off and test all three switch positions (AUTO \/ OFF \/ MANUAL) before the installer leaves.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e8-hour maximum burn is large-class, not long-burn class.\u003c\/strong\u003e A 2.5 ft³ non-cat insert gives you meaningful primary-heat capability across 1,500–2,000 sq ft, with realistic 6–7 hour burn cycles. If you want true 10+ hour overnight burns, consider a catalytic insert in this size class with a real low-output mode.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe 2,200 sq ft figure is aspirational.\u003c\/strong\u003e The most consistent owner regret across large inserts is buying for the high end of the manufacturer's heating range. If you need to reliably heat more than ~2,000 sq ft as primary winter heat in a cold climate or older home, this insert is at its limit — supplemental heat in the coldest part of winter may still be needed.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe blower is essential, not optional.\u003c\/strong\u003e Unlike a freestanding stove where the blower meaningfully improves heat distribution, on an insert the blower is what gets the heat into the room at all. Most of the firebox sits inside the masonry cavity, which absorbs radiant heat. The insert will run safely without the blower (useful in a power outage), but day-to-day heat into the room depends on the blower being on and working.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e535 lb shipping weight is heavy.\u003c\/strong\u003e Plan for three-person handling minimum and verify the installation route — stairs, narrow doorways, and tight masonry access make the install meaningfully harder than for smaller inserts. Several owner reports cite installation difficulty as the single hardest part of owning this insert.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLiner, block-off plate, and labor are not in the appliance price.\u003c\/strong\u003e The insert is the appliance; the chimney liner, the block-off plate, the insulation wrap, and the professional installation are separate purchases that need to be planned for. Older or taller chimneys, offset flues, and damper-frame removal add to install complexity. Skipping the liner, the block-off plate, or the insulation wrap saves money up front and costs measurable performance and creosote durability after.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLarge window makes glass cleaning visible.\u003c\/strong\u003e The wide-format 24 3\/8\" × 12 5\/8\" ceramic glass is the largest in the Osburn insert line, which is a major selling point but also means low-burn glass tarring is more visually noticeable. Daily wipe during low-burn weather; weekly during high-burn.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eEast-west loading only.\u003c\/strong\u003e The 12 7\/8\" firebox depth is too shallow for north-south log loading. All loading is across the width of the firebox, sides visible from the door. Less flexibility than the deeper-firebox Osburn 3500-I.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood quality is not negotiable.\u003c\/strong\u003e The most common \"the insert doesn't heat\" complaint comes from owners running marginally seasoned wood. Secondary combustion works best with dry, properly seasoned fuel, ideally around 15–20% moisture. A pin-type moisture meter is the single best accessory for this insert.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eConfiguration is a one-time decision.\u003c\/strong\u003e Door overlay color (Black or Brushed Nickel) is configured at order, not field-swappable. Choose the configuration that matches the fireplace you're installing into.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eOperating reality\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eFirst burns.\u003c\/strong\u003e The first three to six fires release paint VOCs as the high-temperature stove paint cures. The smell can be strong; ventilate the room well and avoid prolonged exposure during cure-in. Run the insert hot and expect the smell to disappear permanently after the cure-in.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLighting.\u003c\/strong\u003e Per the manual, the recommended method is the EPA loading procedure for cleanest combustion: place two small pieces (about 3\" × 3\") in the bottom in a reverse-V shape, two medium-size pieces (about 4\" × 4\") in an east-west orientation in the back over the reverse V, and a big piece (about 5\" × 5\") in the front over the reverse V. Leave air space between pieces. Light, leave the door open for three minutes or until the fire is fully established, then close with the air control fully open. The manual also describes alternative methods (conventional bottom-up, top-down, two-parallel-logs).\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAir control.\u003c\/strong\u003e Single-lever, located below the ash shelf. Push the handle to one position for HIGH (full air) and the opposite position for LOW (minimal air). Full open at light-off; gradually closed only after the load is fully engaged and stable secondary flames are established. Closing too fast and the fire smolders. Do not elevate the fire by using a grate.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlower switch positions.\u003c\/strong\u003e The 176 CFM blower assembly has a three-position switch: (1) AUTO — blower starts when the insert is hot enough and stops when it cools down (thermodisc-controlled); (2) OFF — blower stopped, prevented from starting automatically; (3) MANUAL — runs continuously regardless of insert temperature. Use AUTO for normal operation; use MANUAL only when you want continuous airflow regardless of temperature. Allow the insert to reach operating temperature (approximately one hour from cold start) before turning the blower to MANUAL.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eReload cadence.\u003c\/strong\u003e 3–4 hours between reloads in active heating use; up to 7 hours for a final overnight pack with the air shut hard. Rake remaining charcoal toward the front of the firebox before loading — this concentrates the coals near where most of the combustion air enters and helps ignite the new load. Place the new load on and at the back of the embers. Open the air for a minute or two before opening the door, open the door slowly to avoid smoke rollout, load, close the door, and run the air open until the load is fully engaged before reducing gradually. Turn the blower OFF before opening the door fully to reduce ash disturbance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBurn in cycles, not single-log feeds.\u003c\/strong\u003e The manual is explicit: do not attempt to produce steady heat output by placing a single log on the fire at regular intervals. Always place at least three (preferably more) pieces on the fire at a time so the heat radiated from one piece helps ignite the pieces next to it. Each load should provide several hours of heating.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCarbon monoxide watch.\u003c\/strong\u003e Per the manual, if the firebox no longer shows flame but still contains unburned logs, check outside for smoke from the chimney. Smoke without flame means the fire is air-starved and CO levels are rising. Open the door slightly, move the logs with a poker, create a passage for air by making a trench in the ember bed, and add small kindling-size pieces to restart combustion.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAsh management.\u003c\/strong\u003e The Matrix 2700 uses a hollow-bottom firebox; ash is scooped manually from the front. Empty ash every 2–3 days during full-time heating. The best time to remove ash is in the morning after an overnight fire when the insert is relatively cool but there is still some chimney draft to draw ash dust into the insert rather than into the room. Always dispose of ash in a tightly covered metal container on a non-combustible surface, well away from combustible materials — ash retains hot embers for days and releases carbon monoxide. Never store ashes indoors, in a non-metallic container, or on a wooden deck.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGlass cleaning.\u003c\/strong\u003e Damp newspaper dipped in cold ash, or a dedicated ceramic-glass cleaner. Daily wipe during low-burn weather; weekly during high-burn. Black streaks at the lower edge mean wet wood; black uniformly across the glass means burns are running too cool. Brown stains at the lower corners mean smoky combustion. Do not clean the glass when the insert is hot, and do not strike or slam the glass door shut.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoor and glass gaskets.\u003c\/strong\u003e Per the manual, the door gasket needs replacement when the paper-strip test fails: close the door on a strip of paper and try to pull it out; firm resistance means the gasket is sealing, easy pull means it's time to replace. Test all the way around the door. The latch mechanism is adjustable — remove the split pin with pliers and turn the handle one counterclockwise turn to increase pressure. Plan on every 3–5 seasons in regular use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAnnual chimney sweep.\u003c\/strong\u003e Per the manual, the chimney and liner should be cleaned and inspected at least once each year. Inspect every two months during the heating season until you know your creosote-formation rate; monthly is safer for new burners. If buildup reaches 1\/8 inch, sweep immediately. The baffle and secondary tubes lift out for sweep access. Insert installations make sweeping more involved than freestanding stoves — many owners hire a CSIA-certified sweep rather than doing it themselves.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood seasoning.\u003c\/strong\u003e Hardwood needs 12–24 months split, stacked off the ground, top-covered, with sun and wind on the sides. Don't trust supplier \"seasoned\" claims — use a pin-type moisture meter, split a piece in half, measure the fresh face. Manual target: 15–20% moisture. Wood above 25% will smolder, soot the glass, line the chimney with creosote, and undercut every published efficiency and emissions number on this page.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlower maintenance.\u003c\/strong\u003e Keep the blower intake and fins free of dust. Vacuum dust accumulation annually. Do not oil the blower unless the manual specifically calls for lubrication. If the blower fails to engage automatically when the insert reaches operating temperature in AUTO, have the installer or dealer inspect the thermodisc mounting and contact with the insert body — improper seating is the most common cause of auto-activation issues on this insert. Replacement blowers and related service parts are available through Osburn\/SBI dealers and parts channels if needed years out.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRefractory bricks and baffle.\u003c\/strong\u003e The intense heat of the fire can cause slight cracks in the refractory bricks — minor cracks do not reduce effectiveness. Inspect periodically and replace any wider cracks. The baffle and secondary tubes can be removed for sweep access and inspection. Operation with a cracked or missing baffle may cause unsafe temperatures and voids the warranty.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eChimney fire response.\u003c\/strong\u003e If a chimney fire occurs: close the insert door and the air-intake control, alert occupants, contact the fire department if assistance is needed, use a dry chemical fire extinguisher or baking soda or sand to control the fire (never water — it causes a dangerous steam explosion), and do not use the appliance again until the insert and chimney have been inspected by a qualified chimney sweep or fire-department inspector.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat never to burn.\u003c\/strong\u003e Per the manual and EPA fuel rules: no coal, garbage, yard waste, materials containing rubber or plastic, waste petroleum products, paint or paint thinners, asphalt products, painted or pressure-treated wood, railroad ties, manure or animal remains, plywood, particle board, paper products, asbestos materials, construction or demolition debris, salt-water driftwood, or unseasoned wood. This does not prohibit normal fire starters made from paper, cardboard, sawdust, wax, or similar substances when used only to start a fire. Burning prohibited materials destroys the firebox, voids the warranty, and releases toxic compounds into your home and the chimney. Do not burn compressed logs made of wax-impregnated sawdust or logs with chemical additives; 100% compressed-sawdust logs can be used with caution.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWarranty and service\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe Osburn limited lifetime warranty applies to the original retail purchaser only and is non-transferable. The warranty applies to normal residential use only. Proof of purchase (dated bill of sale), model name, and serial number are required for any warranty claim. Online registration is recommended at osburn-mfg.com but not required if a dated invoice is retained.\u003c\/p\u003e\n\n\u003ch3\u003eCoverage by component\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eComponent\u003c\/span\u003e\u003cspan\u003eParts\u003c\/span\u003e\u003cspan\u003eLabor\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustion chamber welds, cast-iron door frame\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCeramic glass, plating manufacturing defects, convector air-mate\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eSurrounds, heat shields, trims, C-Cast baffle, secondary air tubes\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e7 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHandle assembly, glass retainers, air control mechanism\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e3 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eRemovable carbon-steel firebox components\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eBlower, heat sensors, switches, rheostat, wiring, electronics\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e2 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePaint (peeling), gaskets, insulation, ceramic fiber blankets, and other options\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eReplacement parts under warranty\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e90 d\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eA one-time replacement limit applies to all parts with lifetime coverage. Warranty is void if the unit is used to burn anything other than seasoned cordwood, or if it is not operated according to the owner's manual. Damage caused by misuse, improper installation, lack of maintenance, overfiring, downdrafts, venting problems, or under-estimated heating area is not covered. Improper installation by anyone other than an authorized qualified technician voids the warranty.\u003c\/p\u003e\n\n\u003cp\u003eWarranty claims are made through your Osburn dealer and remain subject to SBI\/Osburn inspection, approval, and the current written warranty. Kaminos is the retailer for this insert and supports buyers through purchase; final warranty approval rests with SBI as the manufacturer. SBI's parts network is well-stocked — replacement bricks, baffle, secondary tubes, glass, gaskets, and blower are openly available at fair prices through multiple parts vendors.\u003c\/p\u003e\n\n\u003cp class=\"warranty-note\"\u003eOsburn may require photos or returned parts to support a claim; repair work covered by warranty requires prior manufacturer approval.\u003c\/p\u003e\n\n\u003cp class=\"warranty-note\"\u003eCoverage details can change by component and warranty revision; the current Osburn warranty controls.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCompare with\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eEnerzone Destination 2.7 Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eEnerzone-branded sibling on the same SBI 2700 chassis. Same 2.5 ft³ firebox, same 80,000 BTU\/hr maximum, same 20-inch log capacity, same 176 CFM blower, same 64% HHV efficiency, same 1.2 g\/hr published emissions, same 8-hour burn time, same minimum masonry opening, same warranty schedule. The difference is aesthetic and brand tier: the Matrix 2700 carries the Osburn cast-iron finish with the configurable door overlay (Black or Brushed Nickel); the Destination 2.7 features the Enerzone louvered cast-iron faceplate without the door-overlay configurability. Choose the Matrix 2700 for the Osburn finish detailing and door-overlay customization; choose the Destination 2.7 for the louvered Enerzone styling at the Enerzone price point.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eOsburn 1700-I Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eStep-down sibling in the Osburn insert line. 1.86 ft³ firebox, 65,000 BTU\/hr maximum, 500–1,800 sq ft heating range, 18-inch log capacity, 7-hour maximum burn, 144 CFM blower, 68% HHV efficiency. Much smaller masonry opening required (21 1\/2\" × 27 1\/2\" × 12 7\/8\") — fits openings the Matrix 2700 won't. Configurable Regular\/Large faceplate in Black or Brushed Nickel plus configurable door overlay. Choose the 1700-I for shallower masonry openings, smaller spaces, or higher efficiency in a smaller insert; choose the Matrix 2700 for the larger firebox, more powerful blower, larger viewing window, and class-leading emissions.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eOsburn 3500-I Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eStep-up sibling in the Osburn insert line. Larger 3.5 ft³ firebox, 110,000 BTU\/hr maximum, 1,000–2,700 sq ft heating range, 22-inch log capacity, 10-hour maximum burn, 71% HHV efficiency, 1.6 g\/hr emissions, 144 CFM blower. Loads over both width and depth (the deepest firebox in the Osburn insert line at 20 1\/8\"). Smaller minimum masonry depth (18 3\/8\" vs the Matrix 2700's 22 1\/8\") but larger width requirement (31\"). Choose the 3500-I for primary heat above 2,200 sq ft, longer log capacity, north-south loading flexibility, and longer burn cycles; choose the Matrix 2700 for the larger viewing window, cleaner-burning emissions, and more powerful blower in a slightly smaller firebox class.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003ePacific Energy Summit Insert LE\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eCross-brand competitor in the same size class. Comparable firebox volume and heating capacity, Pacific Energy's well-regarded sealed-firebox technology with single-lever non-cat operation, premium build, higher price. The most common cross-shop with the Matrix 2700 for buyers weighing premium Pacific Energy fit-and-finish against the SBI dealer\/parts accessibility and the Osburn price point.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cp class=\"pull\"\u003eThe Matrix 2700 is the Osburn cast-iron sibling of the Enerzone Destination 2.7 — same chassis, same heat output, same install, same class-leading published emissions. What you're buying is the Osburn finish detailing, the configurable cast-iron door overlay, and the largest viewing window in the Osburn insert line. If those matter to the room, and the masonry opening is big enough to take it, this is the right one.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Osburn","offers":[{"title":"Black","offer_id":49277073850561,"sku":"OB02700+OA10253","price":4729.0,"currency_code":"USD","in_stock":true},{"title":"Brushed Nickel","offer_id":49277073883329,"sku":"OB02700+OA10254","price":5004.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/osburn-matrix-2700-wood-insert-front-ob02700.webp?v=1748289625"},{"product_id":"modern-flames-orion-traditional-electric-fireplace-insert","title":"Modern Flames Orion Traditional Electric Fireplace Insert","description":"\u003cp\u003eThe Modern Flames Orion Traditional is a premium electric fireplace that combines classic design with advanced Heliovision flame technology. It offers ultra-realistic, customizable flames in multiple styles and colors. Available in various sizes, it can be built-in or used as an insert. With smart home compatibility, touch and remote controls, and heating for up to 800 sq ft, it delivers both ambiance and comfort in a sleek, modern package. \u003c\/p\u003e","brand":"Modern Flames","offers":[{"title":"26 inch \/ Standard \/ None","offer_id":49278598414529,"sku":"OR26-TRAD","price":2149.0,"currency_code":"USD","in_stock":true},{"title":"26 inch \/ Standard \/ 26 inch","offer_id":49278530650305,"sku":"OR26-TRAD+TWL-26\/30-SP","price":2399.0,"currency_code":"USD","in_stock":true},{"title":"26 inch \/ 5 inch \/ None","offer_id":49278598447297,"sku":"OR26-TRAD+OTK-OR26-SM","price":2324.0,"currency_code":"USD","in_stock":true},{"title":"26 inch \/ 5 inch \/ 26 inch","offer_id":49278393876673,"sku":"OR26-TRAD+OTK-OR26-SM+TWL-26\/30-SP","price":2574.0,"currency_code":"USD","in_stock":true},{"title":"26 inch \/ 7 inch \/ None","offer_id":49278598480065,"sku":"OR26-TRAD+OTK-OR26-LG","price":2399.0,"currency_code":"USD","in_stock":true},{"title":"26 inch \/ 7 inch \/ 26 inch","offer_id":49278399250625,"sku":"OR26-TRAD+OTK-OR26-LG+TWL-26\/30-SP","price":2649.0,"currency_code":"USD","in_stock":true},{"title":"30 inch \/ Standard \/ None","offer_id":49278598512833,"sku":"OR30-TRAD","price":2649.0,"currency_code":"USD","in_stock":true},{"title":"30 inch \/ Standard \/ 30 inch","offer_id":49278541955265,"sku":"OR30-TRAD+TWL-26\/30-SP","price":2899.0,"currency_code":"USD","in_stock":true},{"title":"30 inch \/ 5 inch \/ None","offer_id":49278598545601,"sku":"OR30-TRAD+OTK-OR30-SM","price":2824.0,"currency_code":"USD","in_stock":true},{"title":"30 inch \/ 5 inch \/ 26 inch","offer_id":49278393909441,"sku":"OR30-TRAD+OTK-OR30-SM+TWL-26\/30-SP","price":3074.0,"currency_code":"USD","in_stock":true},{"title":"30 inch \/ 8 inch \/ None","offer_id":49278598578369,"sku":"OR30-TRAD+OTK-OR30-LG","price":2899.0,"currency_code":"USD","in_stock":true},{"title":"30 inch \/ 8 inch \/ 26 inch","offer_id":49278399316161,"sku":"OR30-TRAD+OTK-OR30-LG+TWL-26\/30-SP","price":3149.0,"currency_code":"USD","in_stock":true},{"title":"36 inch \/ Standard \/ None","offer_id":49278598611137,"sku":"OR36-TRAD","price":3199.0,"currency_code":"USD","in_stock":true},{"title":"36 inch \/ Standard \/ 36 inch","offer_id":49278542381249,"sku":"OR36-TRAD+TWL-36-SP","price":3499.0,"currency_code":"USD","in_stock":true},{"title":"36 inch \/ 4 inch \/ None","offer_id":49278598643905,"sku":"OR36-TRAD+OTK-OR36-SM","price":3374.0,"currency_code":"USD","in_stock":true},{"title":"36 inch \/ 4 inch \/ 36 inch","offer_id":49278542512321,"sku":"OR36-TRAD+OTK-OR36-SM+TWL-36-SP","price":3674.0,"currency_code":"USD","in_stock":true},{"title":"36 inch \/ 6 inch \/ None","offer_id":49278598676673,"sku":"OR36-TRAD+OTK-OR36-LG","price":3449.0,"currency_code":"USD","in_stock":true},{"title":"36 inch \/ 6 inch \/ 36 inch","offer_id":49278542643393,"sku":"OR36-TRAD+OTK-OR36-LG+TWL-36-SP","price":3749.0,"currency_code":"USD","in_stock":true},{"title":"42 inch \/ Standard \/ None","offer_id":49278598709441,"sku":"OR42-TRAD","price":3799.0,"currency_code":"USD","in_stock":true},{"title":"42 inch \/ Standard \/ 42 inch","offer_id":49278542807233,"sku":"OR42-TRAD+TWL-42\/44-SP","price":4149.0,"currency_code":"USD","in_stock":true},{"title":"54 inch \/ Standard \/ None","offer_id":49278598742209,"sku":"OR54-TRAD","price":6399.0,"currency_code":"USD","in_stock":true},{"title":"54 inch \/ Standard \/ 54 inch","offer_id":49278542971073,"sku":"OR54-TRAD+TWL-52\/60-SP","price":6799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/modern-flames-orion-traditional-heliovision-fireplace-or54-trad_5c502ca6-4ae1-44c8-809a-f0c579147777.webp?v=1750100512"},{"product_id":"redstone-traditional-electric-insert","title":"Redstone electric insert","description":"\u003ch3 style=\"font-size: 18px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; margin: 0 0 15px;\"\u003e4. Fitment \u0026amp; Product Details\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 20px;\"\u003e\u003cstrong\u003ePro Sizing Tip:\u003c\/strong\u003e Measure the finished opening where the RedStone will sit: width, height, and depth. The surround can help cover the face, but the fireplace body still needs the correct opening behind it.\u003c\/p\u003e\n\n\u003cdiv style=\"width: 100%; max-width: 100%; box-sizing: border-box; margin-bottom: 10px;\"\u003e\n  \u003ctable style=\"width: 100%; max-width: 100%; border-collapse: collapse; font-size: 12px; table-layout: fixed; box-sizing: border-box;\"\u003e\n    \u003ccolgroup\u003e\n      \u003ccol style=\"width: 16%;\"\u003e\n      \u003ccol style=\"width: 21%;\"\u003e\n      \u003ccol style=\"width: 21%;\"\u003e\n      \u003ccol style=\"width: 20%;\"\u003e\n      \u003ccol style=\"width: 22%;\"\u003e\n    \u003c\/colgroup\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #231120;\"\u003e\n        \u003cth style=\"padding: 9px 4px; text-align: left; vertical-align: bottom; overflow-wrap: break-word;\"\u003eSize\u003c\/th\u003e\n        \u003cth style=\"padding: 9px 4px; text-align: left; vertical-align: bottom; overflow-wrap: break-word;\"\u003eOpening Width\u003c\/th\u003e\n        \u003cth style=\"padding: 9px 4px; text-align: left; vertical-align: bottom; overflow-wrap: break-word;\"\u003eOpening Height\u003c\/th\u003e\n        \u003cth style=\"padding: 9px 4px; text-align: left; vertical-align: bottom; overflow-wrap: break-word;\"\u003eOpening Depth\u003c\/th\u003e\n        \u003cth style=\"padding: 9px 4px; text-align: left; vertical-align: bottom; overflow-wrap: break-word;\"\u003eHeating Area\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #f0eee9;\"\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e\u003cstrong\u003e26\"\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e23\"\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e18-3\/4\"\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e10\"\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003eUp to 400 sq. ft.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #f0eee9;\"\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e\u003cstrong\u003e30\"\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e28-1\/4\"\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e18-3\/4\"\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e10\"\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003eUp to 400 sq. ft.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #f0eee9;\"\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e\u003cstrong\u003e36\"\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e32-5\/8\"\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e23-7\/8\"\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e10\"\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003eUp to 800 sq. ft.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #f0eee9;\"\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e\u003cstrong\u003e42\"\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e38-3\/4\"\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e26-3\/4\"\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e10\"\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003eUp to 800 sq. ft.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #f0eee9;\"\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e\u003cstrong\u003e54\"\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e50-15\/16\"\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e32-3\/4\"\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e12\"\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003eUp to 800 sq. ft.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #f0eee9;\"\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\" colspan=\"4\"\u003eTraditional electric fireplace insert\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #f0eee9;\"\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e\u003cstrong\u003eElectrical\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\" colspan=\"4\"\u003e120V on a dedicated 15A or higher circuit\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #f0eee9;\"\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e\u003cstrong\u003eHeat Output\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\" colspan=\"4\"\u003e5,000 BTU supplemental heater\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #f0eee9;\"\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e\u003cstrong\u003eIncluded Media\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\" colspan=\"4\"\u003eDriftwood log set and Glacier glass crystals\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #f0eee9;\"\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\"\u003e\u003cstrong\u003eUse\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd style=\"padding: 9px 4px; vertical-align: top;\" colspan=\"4\"\u003eIndoor electric fireplace use only\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"font-size: 11px; color: #484848; margin: 8px 0 0;\"\u003e*Confirm your finished opening and selected surround option before ordering.\u003c\/p\u003e","brand":"Modern Flames","offers":[{"title":"26 inch \/ Standard \/ None","offer_id":49280157057217,"sku":"RS-2621","price":999.0,"currency_code":"USD","in_stock":true},{"title":"26 inch \/ Standard \/ 26 inch","offer_id":49280157089985,"sku":"RS-2621 +TWL-26\/30-SP","price":1249.0,"currency_code":"USD","in_stock":true},{"title":"26 inch \/ 5 inch \/ None","offer_id":49280157122753,"sku":"RS-2621 +TK-RS26-3324","price":1174.0,"currency_code":"USD","in_stock":true},{"title":"26 inch \/ 5 inch \/ 26 inch","offer_id":49280157155521,"sku":"RS-2621 +TK-RS26-3324+TWL-26\/30-SP","price":1424.0,"currency_code":"USD","in_stock":true},{"title":"26 inch \/ 7 inch \/ None","offer_id":49280157188289,"sku":"RS-2621 +TK-RS26-3726","price":1249.0,"currency_code":"USD","in_stock":true},{"title":"26 inch \/ 7 inch \/ 26 inch","offer_id":49280157221057,"sku":"RS-2621 +TK-RS26-3726+TWL-26\/30-SP","price":1499.0,"currency_code":"USD","in_stock":true},{"title":"30 inch \/ Standard \/ None","offer_id":49280157253825,"sku":"RS-3021","price":1179.0,"currency_code":"USD","in_stock":true},{"title":"30 inch \/ Standard \/ 30 inch","offer_id":49280157286593,"sku":"RS-3021+TWL-36-SP","price":1479.0,"currency_code":"USD","in_stock":true},{"title":"30 inch \/ 5 inch \/ None","offer_id":49280157319361,"sku":"RS-3021+TK-RS30-3824","price":1354.0,"currency_code":"USD","in_stock":true},{"title":"30 inch \/ 5 inch \/ 26 inch","offer_id":49280157352129,"sku":"RS-3021+TK-RS30-3824+TWL-36-SP","price":1654.0,"currency_code":"USD","in_stock":true},{"title":"30 inch \/ 8 inch \/ None","offer_id":49280157384897,"sku":"RS-3021+TK-RS30-4427","price":1429.0,"currency_code":"USD","in_stock":true},{"title":"30 inch \/ 8 inch \/ 26 inch","offer_id":49280157417665,"sku":"RS-3021+TK-RS30-4427+TWL-26\/30-SP","price":1679.0,"currency_code":"USD","in_stock":true},{"title":"36 inch \/ Standard \/ None","offer_id":49280157450433,"sku":"RS-3626","price":1499.0,"currency_code":"USD","in_stock":true},{"title":"36 inch \/ Standard \/ 36 inch","offer_id":49280157483201,"sku":"RS-3626+TWL-36-SP","price":1799.0,"currency_code":"USD","in_stock":true},{"title":"36 inch \/ 4 inch \/ None","offer_id":49280157515969,"sku":"RS-3626+TK-RS36-4128","price":1674.0,"currency_code":"USD","in_stock":true},{"title":"36 inch \/ 4 inch \/ 36 inch","offer_id":49280157548737,"sku":"RS-3626+TK-RS36-4128+TWL-36-SP","price":1974.0,"currency_code":"USD","in_stock":true},{"title":"36 inch \/ 6 inch \/ None","offer_id":49280157581505,"sku":"RS-3626+TK-RS36-4530","price":1749.0,"currency_code":"USD","in_stock":true},{"title":"36 inch \/ 6 inch \/ 36 inch","offer_id":49280157614273,"sku":"RS-3626+TK-RS36-4530+TWL-36-SP","price":2049.0,"currency_code":"USD","in_stock":true},{"title":"42 inch \/ Standard \/ None","offer_id":49280157647041,"sku":"RS-4229","price":1699.0,"currency_code":"USD","in_stock":true},{"title":"42 inch \/ Standard \/ 42 inch","offer_id":49280157679809,"sku":"RS-4229+TWL-42\/44-SP","price":2049.0,"currency_code":"USD","in_stock":true},{"title":"54 inch \/ Standard \/ None","offer_id":49280157712577,"sku":"RS-5435","price":3149.0,"currency_code":"USD","in_stock":true},{"title":"54 inch \/ Standard \/ 54 inch","offer_id":49280157745345,"sku":"RS-5435+TWL-52\/60-SP","price":3549.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/Redstone_electric_insert_Kaminos.webp?v=1779742872"},{"product_id":"majestic-trilliant-gas-insert","title":"Majestic Trilliant Gas Insert","description":"\u003ch2\u003eMajestic Trilliant Gas Insert — Homeowner Guide\u003c\/h2\u003e\n\n\u003ch3\u003eQuick Overview\u003c\/h3\u003e\n\u003cp\u003e\nThe Majestic Trilliant is a direct vent gas insert made to turn an existing fireplace into a cleaner, more efficient gas system without rebuilding the whole structure around it. It is built for homeowners who want stronger everyday heat, easier operation, and a more finished look inside the fireplace they already have.\n\u003c\/p\u003e\n\n\u003ch3\u003eWhat’s included\u003c\/h3\u003e\n\u003cp\u003e\nThis package is built around the Trilliant insert and the required finishing components needed for a complete installation.\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003egas insert unit in natural gas, also available in propane if needed\u003c\/li\u003e\n  \u003cli\u003eselected front\u003c\/li\u003e\n  \u003cli\u003eselected surround\u003c\/li\u003e\n  \u003cli\u003erequired direct vent liner kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\nThe insert itself includes the core features homeowners usually want to know are already there:\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eIntelliFire Touch ignition system\u003c\/li\u003e\n  \u003cli\u003eRC400 remote control\u003c\/li\u003e\n  \u003cli\u003eGFK-160A variable fan\u003c\/li\u003e\n  \u003cli\u003eheat exchanger tubes\u003c\/li\u003e\n  \u003cli\u003eceramic glass\u003c\/li\u003e\n  \u003cli\u003eglowing embers\u003c\/li\u003e\n  \u003cli\u003ebattery backup\u003c\/li\u003e\n  \u003cli\u003egas flex connector\u003c\/li\u003e\n  \u003cli\u003eCanyon Brown brick interior\u003c\/li\u003e\n  \u003cli\u003edecorative brick base\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Quick Truth (and quick specs)\u003c\/h3\u003e\n\u003cp\u003e\nTrilliant is available in three insert sizes:\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e25 — 27,000 max BTU in natural gas \/ 25,000 max BTU in propane\u003c\/li\u003e\n  \u003cli\u003e30 — 32,700 max BTU in natural gas \/ 32,000 max BTU in propane\u003c\/li\u003e\n  \u003cli\u003e35 — 35,000 max BTU in natural gas \/ 35,000 max BTU in propane\u003c\/li\u003e\n  \u003cli\u003eall three use a direct vent liner system\u003c\/li\u003e\n  \u003cli\u003eall three use IntelliFire Touch and include a blower\u003c\/li\u003e\n  \u003cli\u003eall three are designed for existing solid-fuel masonry fireplaces or UL127 factory-built fireplaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill it fit my fireplace?\u003c\/h3\u003e\n\u003cp\u003e\nTrilliant is made for existing fireplace openings, not new framed cavities. The minimum inside opening needed for the insert to fit is:\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e25 — front width 26-5\/8, front height 17-5\/16, depth 15\u003c\/li\u003e\n  \u003cli\u003e30 — front width 31-5\/8, front height 21, depth 15\u003c\/li\u003e\n  \u003cli\u003e35 — front width 36-5\/8, front height 24-1\/4, depth 15\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\nThe back of the firebox can taper smaller, and if the damper area and vent path do not line up cleanly, extra height may be needed for vent bends.\n\u003c\/p\u003e\n\n\u003ch3\u003eDoes it cover the opening?\u003c\/h3\u003e\n\u003cp\u003e\nYes. The surround is the trim that covers the space between the insert and your fireplace opening. It does not decide whether the unit fits. It decides how much of the opening gets covered and how finished the final result looks.\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e25 small: 35 x 23\u003c\/li\u003e\n  \u003cli\u003e25 medium: 37 x 26\u003c\/li\u003e\n  \u003cli\u003e25 large: 39 x 28\u003c\/li\u003e\n  \u003cli\u003e30 small: 40 x 27\u003c\/li\u003e\n  \u003cli\u003e30 medium: 42 x 30\u003c\/li\u003e\n  \u003cli\u003e30 large: 44 x 32\u003c\/li\u003e\n  \u003cli\u003e35 small: 42 x 29\u003c\/li\u003e\n  \u003cli\u003e35 medium: 44 x 32\u003c\/li\u003e\n  \u003cli\u003e35 large: 48 x 32\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\nNew bronze surround options are available if needed, and medium deep black surrounds are also available for the 30 and 35.\n\u003c\/p\u003e\n\n\u003ch3\u003eClearances (simple)\u003c\/h3\u003e\n\u003cp\u003e\nThis is the part that matters in real life: if you want a mantel or a TV above the insert, that needs to be planned before installation.\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003edeeper mantels need more space above the unit\u003c\/li\u003e\n  \u003cli\u003eTVs above fireplaces can work, but heat management matters\u003c\/li\u003e\n  \u003cli\u003ethe front and surround you choose affect the final spacing\u003c\/li\u003e\n  \u003cli\u003eif your goal is a TV-above-fireplace setup, confirm that layout before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat installation typically includes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ecleaning and preparing the existing fireplace\u003c\/li\u003e\n  \u003cli\u003erunning the direct vent liners through the chimney\u003c\/li\u003e\n  \u003cli\u003etermination cap installation at the top of the chimney\u003c\/li\u003e\n  \u003cli\u003egas line connection\u003c\/li\u003e\n  \u003cli\u003eelectrical hookup or power routing\u003c\/li\u003e\n  \u003cli\u003einsert placement and leveling\u003c\/li\u003e\n  \u003cli\u003efront and surround installation\u003c\/li\u003e\n  \u003cli\u003estartup, leak check, and testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOptional upgrades\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003einterior upgrades such as reflective black glass liner\u003c\/li\u003e\n  \u003cli\u003efinish upgrades such as new bronze front and surround options\u003c\/li\u003e\n  \u003cli\u003ecomfort and control upgrades such as Wi-Fi module and wall switch controls\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBottom line\u003c\/h3\u003e\n\u003cp\u003e\nThe Majestic Trilliant is a strong gas insert upgrade when you want more heat, a more finished fireplace, and a broader range of front styles than the simpler insert lines. The 25 works well for smaller openings, the 30 is the middle ground, and the 35 is the best fit when you want a larger viewing area and a bigger visual upgrade.\n\u003c\/p\u003e","brand":"Majestic","offers":[{"title":"25 inch \/ Clean Screen \/ Small","offer_id":50125045989569,"sku":"TRILLIANT25IN+CSFI25BK+MI25-3523-BK+LINK-DV4-30B","price":4590.0,"currency_code":"USD","in_stock":true},{"title":"25 inch \/ Clean Screen \/ Medium","offer_id":50125046022337,"sku":"TRILLIANT25IN+CSFI25BK+MI25-3726-BK+LINK-DV4-30B","price":4610.0,"currency_code":"USD","in_stock":true},{"title":"25 inch \/ Clean Screen \/ Large","offer_id":50125046055105,"sku":"TRILLIANT25IN+CSFI25BK+MI25-3928-BK+LINK-DV4-30B","price":4650.0,"currency_code":"USD","in_stock":true},{"title":"25 inch \/ Forged Arch \/ Small","offer_id":50125046087873,"sku":"TRILLIANT25IN+FA-TRI25-BK+MI25-3523-BK+LINK-DV4-30B","price":5580.0,"currency_code":"USD","in_stock":true},{"title":"25 inch \/ Forged Arch \/ 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Large","offer_id":50125047431361,"sku":"TRILLIANT35IN+TA-TRI35-BK+MI35-4832-BK+LINK-DV4-30B","price":5390.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/majestic-trilliant-series-gas-fireplace-insert.webp?v=1775509271"},{"product_id":"majestic-ruby-gas-fireplace-insert","title":"Majestic Ruby Gas Fireplace Insert","description":"\u003ch2\u003eMajestic Ruby Gas Fireplace Insert — Homeowner Guide\u003c\/h2\u003e\n\n\u003cp\u003e\nThe Majestic Ruby Gas Fireplace Insert is made to turn an existing wood-burning fireplace into a cleaner, easier, everyday gas fireplace. It is a direct vent insert, so it is built to vent through liners run inside the existing chimney, and it is designed for use in a solid-fuel masonry fireplace or a UL127-listed factory-built fireplace.\n\u003c\/p\u003e\n\n\u003ch3\u003eWhat’s Included in This Package\u003c\/h3\u003e\n\n\u003cp\u003e\nThis product is sold as a complete standard insert package.\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMajestic Ruby gas fireplace insert\u003c\/li\u003e\n  \u003cli\u003eRequired front\u003c\/li\u003e\n  \u003cli\u003eRequired surround\u003c\/li\u003e\n  \u003cli\u003eApproved venting kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\nThe insert itself also comes with the main built-in features already included from the factory:\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eIFT-RC400 remote control\u003c\/li\u003e\n  \u003cli\u003eFactory-installed variable fan\u003c\/li\u003e\n  \u003cli\u003eBattery backup system\u003c\/li\u003e\n  \u003cli\u003eIntelliFire Touch ignition system\u003c\/li\u003e\n  \u003cli\u003eCeramic glass\u003c\/li\u003e\n  \u003cli\u003eGas flex connector\u003c\/li\u003e\n  \u003cli\u003eDecorative brick base \/ refractory base\u003c\/li\u003e\n  \u003cli\u003eStandard log set and ember media\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Quick Truth\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eThis is for upgrading an existing fireplace to gas\u003c\/li\u003e\n  \u003cli\u003eYou choose the size, the front, and the surround\u003c\/li\u003e\n  \u003cli\u003eThe package includes the insert, front, surround, and venting kit\u003c\/li\u003e\n  \u003cli\u003eThe remote and fan are already included with the insert\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\nAvailable size and input ranges:\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRuby 25:\u003c\/strong\u003e 18,900 to 27,000 BTU\/hr (NG) or 17,500 to 25,000 BTU\/hr (LP)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRuby 30:\u003c\/strong\u003e 22,890 to 32,700 BTU\/hr (NG) or 22,400 to 32,000 BTU\/hr (LP)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRuby 35:\u003c\/strong\u003e 24,500 to 35,000 BTU\/hr (NG or LP)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill It Fit My Fireplace?\u003c\/h3\u003e\n\n\u003cp\u003e\nThe first question is whether the insert itself fits inside your existing firebox. For a standard surround setup, the minimum firebox opening requirements are:\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRuby 25 minimum firebox opening:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRear width: 15 1\/8\"\u003c\/li\u003e\n  \u003cli\u003eFront width: 26 5\/8\"\u003c\/li\u003e\n  \u003cli\u003eFront opening height: 17 5\/16\"\u003c\/li\u003e\n  \u003cli\u003eRear opening height: 15 1\/4\"\u003c\/li\u003e\n  \u003cli\u003eUnit opening depth: 15\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eRuby 30 minimum firebox opening:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRear width: 20 1\/8\"\u003c\/li\u003e\n  \u003cli\u003eFront width: 31 5\/8\"\u003c\/li\u003e\n  \u003cli\u003eFront opening height: 21\"\u003c\/li\u003e\n  \u003cli\u003eRear opening height: 19 3\/16\"\u003c\/li\u003e\n  \u003cli\u003eUnit opening depth: 15\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eRuby 35 minimum firebox opening:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRear width: 25 1\/8\"\u003c\/li\u003e\n  \u003cli\u003eFront width: 36 5\/8\"\u003c\/li\u003e\n  \u003cli\u003eFront opening height: 24 1\/4\"\u003c\/li\u003e\n  \u003cli\u003eRear opening height: 21 11\/16\"\u003c\/li\u003e\n  \u003cli\u003eUnit opening depth: 15\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\nIf the exhaust collar on the insert and the fireplace damper do not line up, Majestic says to add 4\" to the minimum fireplace height for vent-pipe bends.\n\u003c\/p\u003e\n\n\u003ch3\u003eDoes It Cover the Opening?\u003c\/h3\u003e\n\n\u003cp\u003e\nOnce the insert fits inside the fireplace, the surround is what closes the visible gap and finishes the opening.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRuby 25 surround sizes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSmall: 35\" x 23\"\u003c\/li\u003e\n  \u003cli\u003eMedium: 37\" x 26\"\u003c\/li\u003e\n  \u003cli\u003eLarge: 39\" x 28\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eRuby 30 surround sizes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSmall: 40\" x 27\"\u003c\/li\u003e\n  \u003cli\u003eMedium: 42\" x 30\"\u003c\/li\u003e\n  \u003cli\u003eLarge: 44\" x 32\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eRuby 35 surround sizes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSmall: 42\" x 29\"\u003c\/li\u003e\n  \u003cli\u003eMedium: 44\" x 32\"\u003c\/li\u003e\n  \u003cli\u003eLarge: 48\" x 32\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\nFor tighter openings or special situations, custom surrounds are available. Majestic also lists medium deep black surrounds for Ruby 30 and Ruby 35.\n\u003c\/p\u003e\n\n\u003ch3\u003eChoose Your Look\u003c\/h3\u003e\n\n\u003cp\u003e\nThe overall look comes down to the front style and the surround size.\n\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFront styles:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInside Fit\u003c\/strong\u003e – the most tucked-in and minimal look\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClean Screen\u003c\/strong\u003e – a cleaner, more open face\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eArch\u003c\/strong\u003e – a softer, more classic look\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eStandard surround sizes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSmall\u003c\/li\u003e\n  \u003cli\u003eMedium\u003c\/li\u003e\n  \u003cli\u003eLarge\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat Installation Typically Includes\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eInsert placement inside the existing fireplace\u003c\/li\u003e\n  \u003cli\u003eInstallation of the venting liner system\u003c\/li\u003e\n  \u003cli\u003eConnection to the gas supply\u003c\/li\u003e\n  \u003cli\u003eFront and surround installation\u003c\/li\u003e\n  \u003cli\u003eFinal fitment and testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\nSome fireplaces may also need additional finish work depending on the firebox shape, chimney path, and surround choice.\n\u003c\/p\u003e\n\n\u003ch3\u003eOptional Upgrades\u003c\/h3\u003e\n\n\u003cp\u003e\nIf you want to customize the final look further, Majestic also offers additional options depending on model and setup.\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eReflective black glass liner\u003c\/li\u003e\n  \u003cli\u003eOptional interior panels\u003c\/li\u003e\n  \u003cli\u003eDecorative media such as stones or glass\u003c\/li\u003e\n  \u003cli\u003eDriftwood styling on supported configurations\u003c\/li\u003e\n  \u003cli\u003eWi-Fi module for app control\u003c\/li\u003e\n  \u003cli\u003eWall switch options\u003c\/li\u003e\n  \u003cli\u003eCustom or on-site surround solutions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBottom Line\u003c\/h3\u003e\n\n\u003cp\u003e\nThe Majestic Ruby Gas Fireplace Insert is a strong option if you want a real fireplace upgrade with clear sizing, a finished look, and everyday convenience already built in. The standard package keeps the ordering process simple, while still leaving room for finish and design upgrades if you want a more tailored result.\n\u003c\/p\u003e","brand":"Majestic","offers":[{"title":"25 inch \/ Inside Fit \/ Small","offer_id":50111615271105,"sku":"RUBY25IN+INFIT-25-BK+MI25-3523-BK+LINK-DV30B","price":4262.0,"currency_code":"USD","in_stock":true},{"title":"25 inch \/ Inside Fit \/ Medium","offer_id":50111615303873,"sku":"RUBY25IN+INFIT-25-BK+MI25-3726-BK+LINK-DV30B","price":4282.0,"currency_code":"USD","in_stock":true},{"title":"25 inch \/ Inside Fit \/ Large","offer_id":50111615336641,"sku":"RUBY25IN+INFIT-25-BK+MI25-3928-BK+LINK-DV30B","price":4322.0,"currency_code":"USD","in_stock":true},{"title":"25 inch \/ Arch \/ Small","offer_id":50111615467713,"sku":"RUBY25IN+CASFI25BK+MI25-3523-BK+LINK-DV30B","price":4352.0,"currency_code":"USD","in_stock":true},{"title":"25 inch \/ Arch \/ 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Medium","offer_id":50111615992001,"sku":"RUBY35IN+CSFI35BK+MI35-4432-BK+LINK-DV30B","price":4732.0,"currency_code":"USD","in_stock":true},{"title":"35 inch \/ Clean Screen \/ Large","offer_id":50111616024769,"sku":"RUBY35IN+CSFI35BK+MI35-4832-BK+LINK-DV30B","price":4772.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/majestic-ruby-series-direct-vent-gas-insert.webp?v=1751838542"},{"product_id":"majestic-jasper-gas-insert","title":"Majestic Jasper Gas Insert","description":"\u003ch2\u003eMajestic Jasper Gas Insert — Homeowner Guide\u003c\/h2\u003e\n\n\u003ch3\u003eQuick Overview\u003c\/h3\u003e\n\u003cp\u003e\nThe Majestic Jasper is built to upgrade an existing fireplace into a cleaner, easier gas system without rebuilding the structure around it. It gives you direct vent performance, a finished look, and everyday gas convenience while still using the fireplace you already have.\n\u003c\/p\u003e\n\n\u003ch3\u003eWhat’s included\u003c\/h3\u003e\n\u003cp\u003e\nThis package includes the core components required for a complete installation:\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003egas insert unit in natural gas, also available in propane if needed\u003c\/li\u003e\n  \u003cli\u003eselected front\u003c\/li\u003e\n  \u003cli\u003eselected surround\u003c\/li\u003e\n  \u003cli\u003erequired direct vent liner kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\nThe insert itself includes:\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e6 ceramic fiber split logs\u003c\/li\u003e\n  \u003cli\u003elava rock and glowing embers\u003c\/li\u003e\n  \u003cli\u003eIntelliFire ignition system\u003c\/li\u003e\n  \u003cli\u003eRC300 remote control\u003c\/li\u003e\n  \u003cli\u003eceramic glass\u003c\/li\u003e\n  \u003cli\u003ebattery backup\u003c\/li\u003e\n  \u003cli\u003epower cord assembly\u003c\/li\u003e\n  \u003cli\u003egas flex connector\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eThe Quick Truth (and quick specs)\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eup to 30,000 BTU in natural gas\u003c\/li\u003e\n  \u003cli\u003eup to 28,000 BTU in propane\u003c\/li\u003e\n  \u003cli\u003eactual unit size: 31-1\/8 wide x 20-3\/4 high x 14-1\/2 deep\u003c\/li\u003e\n  \u003cli\u003evisible glass area: 27-1\/4 wide x 15-11\/16 high\u003c\/li\u003e\n  \u003cli\u003eventing: 3-inch exhaust and 3-inch intake liner system\u003c\/li\u003e\n  \u003cli\u003event height: 10 feet minimum, 50 feet maximum\u003c\/li\u003e\n  \u003cli\u003estandard household power for normal operation\u003c\/li\u003e\n  \u003cli\u003ebattery backup for outage use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill it fit my fireplace?\u003c\/h3\u003e\n\u003cp\u003e\nJasper is designed for an existing solid-fuel masonry fireplace or a UL127 listed factory-built fireplace.\n\u003c\/p\u003e\n\n\u003cp\u003e\nThe minimum inside fireplace opening needed for the insert to fit is:\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003efront width: 31-5\/8\u003c\/li\u003e\n  \u003cli\u003efront height: 21\u003c\/li\u003e\n  \u003cli\u003edepth: 15\u003c\/li\u003e\n  \u003cli\u003erear width: 20-1\/8\u003c\/li\u003e\n  \u003cli\u003erear height: 19-3\/16\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\nIf your damper area and vent path do not line up cleanly, additional height may be needed to allow proper venting.\n\u003c\/p\u003e\n\n\u003ch3\u003eDoes it cover the opening?\u003c\/h3\u003e\n\u003cp\u003e\nYes. The surround is the trim that covers the space between the insert and your fireplace opening. It does not affect fit — it determines how clean and finished the final result looks.\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003esmall surround: 40 wide x 27 high\u003c\/li\u003e\n  \u003cli\u003emedium surround: 42 wide x 30 high\u003c\/li\u003e\n  \u003cli\u003elarge surround: 44 wide x 32 high\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\nMost installations use the medium surround. Larger surrounds are used when the fireplace opening needs more coverage.\n\u003c\/p\u003e\n\n\u003ch3\u003eOptional upgrades\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eblower (fan) — not included by default, helps push heat into the room\u003c\/li\u003e\n  \u003cli\u003einterior upgrades such as reflective black glass liner, Tavern Brown interior panels, or Cottage Red interior panels\u003c\/li\u003e\n  \u003cli\u003efinish upgrades such as new bronze front and surround options\u003c\/li\u003e\n  \u003cli\u003epropane conversion kit\u003c\/li\u003e\n  \u003cli\u003ewall switch or thermostat controls\u003c\/li\u003e\n  \u003cli\u003eWi-Fi or remote-related accessories\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eClearances (simple)\u003c\/h3\u003e\n\u003cp\u003e\nThis is the part that matters in real life: if you want a mantel or a TV above the insert, that needs to be planned before installation.\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003edeeper mantels need more space above the unit\u003c\/li\u003e\n  \u003cli\u003eTVs above fireplaces can work, but heat management matters\u003c\/li\u003e\n  \u003cli\u003ethe front and surround you choose affect the final spacing\u003c\/li\u003e\n  \u003cli\u003eif your goal is a TV-above-fireplace setup, confirm that layout before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat installation typically includes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003epreparing and cleaning the existing fireplace\u003c\/li\u003e\n  \u003cli\u003erunning direct vent liners through the chimney\u003c\/li\u003e\n  \u003cli\u003etermination cap installation at the top\u003c\/li\u003e\n  \u003cli\u003egas line connection\u003c\/li\u003e\n  \u003cli\u003eelectrical hookup or power routing\u003c\/li\u003e\n  \u003cli\u003einsert placement and leveling\u003c\/li\u003e\n  \u003cli\u003efront and surround installation\u003c\/li\u003e\n  \u003cli\u003estartup, testing, and safety check\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBottom line\u003c\/h3\u003e\n\u003cp\u003e\nIf your fireplace meets the minimum opening size, Jasper will fit. From there, the surround and optional upgrades like the blower and design features determine how the fireplace looks and how effectively it heats your space.\n\u003c\/p\u003e","brand":"Majestic","offers":[{"title":"Clean Screen \/ Small","offer_id":50123020665025,"sku":"JASPER30IN+CSFI30BK+MI30-4027-BK+LINK-DV4-30B","price":3650.0,"currency_code":"USD","in_stock":true},{"title":"Clean Screen \/ Medium","offer_id":50123020697793,"sku":"JASPER30IN+CSFI30BK+MI30-4230-BK+LINK-DV4-30B","price":3680.0,"currency_code":"USD","in_stock":true},{"title":"Clean Screen \/ Large","offer_id":50123020730561,"sku":"JASPER30IN+CSFI30BK+MI30-4432-BK+LINK-DV4-30B","price":3710.0,"currency_code":"USD","in_stock":true},{"title":"Arch \/ Small","offer_id":50123020763329,"sku":"JASPER30IN+CASFI30BK+MI30-4027-BK+LINK-DV4-30B","price":3700.0,"currency_code":"USD","in_stock":true},{"title":"Arch \/ Medium","offer_id":50123020796097,"sku":"JASPER30IN+CASFI30BK+MI30-4230-BK+LINK-DV4-30B","price":3730.0,"currency_code":"USD","in_stock":true},{"title":"Arch \/ Large","offer_id":50123020828865,"sku":"JASPER30IN+CASFI30BK+MI30-4432-BK+LINK-DV4-30B","price":3760.0,"currency_code":"USD","in_stock":true},{"title":"Inside Fit \/ Small","offer_id":50123020861633,"sku":"JASPER30IN+INFIT-30-BK+MI30-4027-BK+LINK-DV4-30B","price":3600.0,"currency_code":"USD","in_stock":true},{"title":"Inside Fit \/ Medium","offer_id":50123020894401,"sku":"JASPER30IN+INFIT-30-BK+MI30-4230-BK+LINK-DV4-30B","price":3630.0,"currency_code":"USD","in_stock":true},{"title":"Inside Fit \/ Large","offer_id":50123020927169,"sku":"JASPER30IN+INFIT-30-BK+MI30-4432-BK+LINK-DV4-30B","price":3660.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/Majestic_Jasper_Gas_Insert.webp?v=1775436231"},{"product_id":"simplifire-electric-fireplace-insert","title":"SimpliFire Electric fireplace insert ","description":"\u003cp\u003eThe SimpliFire Electric Insert is a smart, efficient solution for converting an outdated or drafty wood-burning fireplace into a clean, modern source of warmth and ambience — ideal for renovating older hearths or adding a new fireplace to any room. Designed to fit directly into an existing wood-fireplace opening (with a surround kit) or into a framed wall cavity thanks to its self-trimming design, the insert is available in 25\", 30\", and 35\" widths to match different fireplace openings. It features realistic LED flame effects and a textured log set that replicate the look of a real fire — without soot, venting, or messy maintenance. You can enjoy cozy, supplemental heat with its built-in fan-forced heater producing up to ~5,000 BTU, or simply use flame-only mode for year-round ambience. With intuitive remote control, adjustable flame intensity, and optional decorative fronts or surrounds, the SimpliFire Electric Insert delivers traditional fireplace elegance with modern ease — a low-maintenance, plug-in (or hard-wired) solution perfect for living rooms, dens, or any space needing a warm, inviting focal point.\u003c\/p\u003e","brand":"Simplifire","offers":[{"title":"25 inch \/ None \/ None","offer_id":49828942282945,"sku":"SF-INS25","price":919.0,"currency_code":"USD","in_stock":true},{"title":"25 inch \/ None \/ Yes","offer_id":49828942250177,"sku":"SF-INS25+FT-MISSION-25","price":1258.0,"currency_code":"USD","in_stock":true},{"title":"25 inch \/ Large - Black \/ None","offer_id":49828942151873,"sku":"SF-INS25+SF-SI3726-INS25","price":1128.0,"currency_code":"USD","in_stock":true},{"title":"25 inch \/ Large - Black \/ Yes","offer_id":49828942119105,"sku":"SF-INS25+SF-SI3726-INS25 +FT-MISSION-25","price":1467.0,"currency_code":"USD","in_stock":true},{"title":"25 inch \/ Small - Black \/ None","offer_id":49828942217409,"sku":"SF-INS25+SF-SI3523-INS25","price":1088.0,"currency_code":"USD","in_stock":true},{"title":"25 inch \/ Small - Black \/ Yes","offer_id":49828942184641,"sku":"SF-INS25+SF-SI3523-INS25+FT-MISSION-25","price":1427.0,"currency_code":"USD","in_stock":true},{"title":"30 inch \/ None \/ None","offer_id":49828942479553,"sku":"SF-INS30+","price":1019.0,"currency_code":"USD","in_stock":true},{"title":"30 inch \/ None \/ Yes","offer_id":49828942446785,"sku":"SF-INS30+FT-MISSION-30","price":1388.0,"currency_code":"USD","in_stock":true},{"title":"30 inch \/ Large - Black \/ None","offer_id":49828942348481,"sku":"SF-INS30+SF-SI4230-INS30","price":1228.0,"currency_code":"USD","in_stock":true},{"title":"30 inch \/ Large - Black \/ Yes","offer_id":49828942315713,"sku":"SF-INS30+FT-MISSION-30 +SF-SI4230-INS30","price":1597.0,"currency_code":"USD","in_stock":true},{"title":"30 inch \/ Small - Black \/ None","offer_id":49828942414017,"sku":"SF-INS30+SF-SI4027-INS30","price":1188.0,"currency_code":"USD","in_stock":true},{"title":"30 inch \/ Small - Black \/ Yes","offer_id":49828942381249,"sku":"SF-INS30+FT-MISSION-30+SF-SI4027-INS30","price":1557.0,"currency_code":"USD","in_stock":true},{"title":"35 inch \/ None \/ None","offer_id":49828942676161,"sku":"SF-INS35","price":1229.0,"currency_code":"USD","in_stock":true},{"title":"35 inch \/ None \/ Yes","offer_id":49828942643393,"sku":"SF-INS35+FT-MISSION-35","price":1628.0,"currency_code":"USD","in_stock":true},{"title":"35 inch \/ Large - Black \/ None","offer_id":49828942545089,"sku":"SF-INS35+SF-SI4432-INS35","price":1438.0,"currency_code":"USD","in_stock":true},{"title":"35 inch \/ Large - Black \/ Yes","offer_id":49828942512321,"sku":"SF-INS35+FT-MISSION-35 +SF-SI4432-INS35","price":1837.0,"currency_code":"USD","in_stock":true},{"title":"35 inch \/ Small - Black \/ None","offer_id":49828942610625,"sku":"SF-INS35+SF-SI4229-INS35","price":1398.0,"currency_code":"USD","in_stock":true},{"title":"35 inch \/ Small - Black \/ Yes","offer_id":49828942577857,"sku":"SF-INS35+FT-MISSION-35 +SF-SI4229-INS35","price":1797.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/simplifire-electric-fireplace-insert.webp?v=1764882859"},{"product_id":"hudson-river-davenport-pellet-insert","title":"Hudson River Davenport Pellet Insert","description":"\u003cp\u003eThe Hudson River Davenport 22″ Pellet Insert delivers reliable warmth, efficient performance, and timeless design for fireplaces and open spaces. With a large glass door that showcases the vibrant flame, its matte black finish and clean lines complement a wide range of décor. Built with fully automatic controls, remote control capability, and a variable-speed convection fan, it offers intuitive operation and customizable comfort. Capable of heating up to approximately 2,200 sq ft with 10,000–50,000 BTU output and up to 30+ hours of burn time per fill, this insert combines efficiency, performance, and visual appeal. Durable, efficient, and versatile, the Davenport enhances both comfort and style in homes.\u003c\/p\u003e","brand":"Hudson River","offers":[{"title":"Default Title","offer_id":49847580590273,"sku":"HRFPI","price":4116.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/Untitled_design_16_1.webp?v=1774555554"},{"product_id":"ironstrike-montlake-300-wood-insert","title":"IronStrike Montlake 300 Wood Insert","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eThe IronStrike Montlake 300 Wood-Burning Fireplace Insert combines powerful heating performance with classic style, featuring Thermal Fin Technology™ (TFT), a 3.0 cu. ft. firebox, and heating coverage of approximately 2,000–3,000 sq. ft. Built for efficient, dependable warmth, it offers a large ceramic glass viewing area, an air-wash system for a cleaner fire view, and durable heavy-gauge steel construction. This unit is also available with multiple top and surround options, allowing you to customize the final look to best fit your fireplace and style. After purchase, we will contact you to confirm your preferred top and surround selection, or you may contact us directly and we will help you choose the right configuration for your installation.\u003cbr\u003e\u003c\/p\u003e","brand":"IronStrike","offers":[{"title":"Default Title","offer_id":49925599199425,"sku":null,"price":5411.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/iron-strike-montlake-300-wood-burning-fireplace-inserts.webp?v=1769106017"},{"product_id":"ironstrike-montlake-230-wood-insert","title":"IronStrike Montlake 230 Wood Insert","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe IronStrike Montlake 230 Wood-Burning Fireplace Insert delivers efficient, dependable heat with classic lodge-inspired style. Featuring Thermal Fin Technology™ (TFT), a 2.3 cu. ft. firebox, and heating coverage of approximately 1,200–2,200 sq. ft., it is built for strong everyday performance. It also offers a large ceramic glass viewing area, an air-wash system for a cleaner fire view, and durable heavy-gauge steel construction. This unit is available with multiple top and surround options, allowing you to customize the final look to best fit your fireplace and style. After purchase, we will contact you to confirm your preferred top and surround selection, or you may contact us directly and we will help you choose the right configuration for your installation.\u003c\/span\u003e\u003c\/p\u003e","brand":"IronStrike","offers":[{"title":"Default Title","offer_id":49925645304001,"sku":null,"price":4285.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/iron-strike-montlake-230-wood-burning-fireplace-inserts.webp?v=1769108069"},{"product_id":"ironstrike-performer-c210-wood-insert","title":"IronStrike Performer C210 Wood Insert","description":"\u003cp\u003eThe IronStrike Performer C210 Wood-Burning Fireplace Insert brings efficient, dependable heat and timeless style to your existing fireplace. Featuring a 2.1 cu. ft. firebox, heating coverage of approximately 1,000–1,800 sq. ft., and a clear ceramic glass fire view, it is built for reliable everyday performance. Its durable heavy-gauge steel construction, high-density firebrick, and air-wash system help provide lasting comfort and a cleaner view of the flames. This unit is also available with multiple surround panel options, allowing you to customize the finished look to best fit your fireplace. After purchase, we will contact you to confirm your preferred surround configuration, or you may contact us directly and we will help you choose the right option for your installation.\u003c\/p\u003e","brand":"IronStrike","offers":[{"title":"Traditional","offer_id":50050057470145,"sku":null,"price":3584.0,"currency_code":"USD","in_stock":true},{"title":"Arch","offer_id":50050057502913,"sku":null,"price":3584.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/iron-strike-performer-c210-wood-burning-fireplace-inserts.webp?v=1769115054"},{"product_id":"ironstrike-striker-c160-wood-inserts","title":"IronStrike Striker C160 Wood Inserts","description":"\u003cp\u003eThe IronStrike Striker C160 Wood-Burning Fireplace Insert transforms an existing fireplace into an efficient, dependable heat source with classic style and strong everyday performance. Featuring a 1.6 cu. ft. firebox, heating coverage of approximately 600–1,300 sq. ft., and a clear ceramic glass fire view, it is built for reliable comfort in smaller living spaces. Its durable heavy-gauge steel construction, high-density firebrick, and air-wash system help deliver lasting performance and a cleaner view of the flames. This unit is also available with multiple surround panel options, allowing you to customize the finished look to best fit your fireplace. After purchase, we will contact you to confirm your preferred surround configuration, or you may contact us directly and we will help you choose the right option for your installation.\u003c\/p\u003e","brand":"IronStrike","offers":[{"title":"Traditional","offer_id":50050055864513,"sku":null,"price":2947.0,"currency_code":"USD","in_stock":true},{"title":"Arch","offer_id":50050055897281,"sku":null,"price":2947.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/iron-strike-striker-c160-wood-burning-fireplace-inserts.webp?v=1769118580"},{"product_id":"ironstrike-madison-park-34-direct-vent-gas-insert","title":"IronStrike Madison Park 34 Direct Vent Gas Insert","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe IronStrike Madison Park 34 Direct Vent Gas Fireplace Insert transforms your existing wood-burning fireplace into an efficient, stylish heat source with the effortless convenience of gas. Designed to fit zero-clearance factory-built and masonry fireplaces, it delivers up to 38,000 BTUs of warm, cozy comfort with outstanding heating efficiency and lower operating costs. Featuring electronic ignition with battery backup, ceramic glass for optimal heat transfer, a high-definition ceramic fiber log set, and a factory-installed variable-speed blower, this insert combines performance with beautiful fire visuals. 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}\n  .km-desc details \u003e summary::-webkit-details-marker { display: none; }\n  .km-desc details \u003e summary::after { content: \"+\"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-size: 22px; font-weight: 300; color: #9B774D; line-height: 1; }\n  .km-desc details[open] \u003e summary::after { content: \"−\"; }\n  .km-desc details \u003e summary:focus-visible { outline: 2px solid #9B774D; outline-offset: 4px; }\n  .km-desc details \u003e .acc-body { padding: 0 0 28px 0; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"km-desc\"\u003e\n\n\u003cp class=\"lede\"\u003eA 1.1 ft³ non-catalytic steel wood insert designed to slide into an existing masonry fireplace with a 19\" × 25\" × 15.5\" minimum opening. EPA 2020 cordwood certified at 75% HHV efficiency, with a 90 CFM blower and a 17-inch maximum east-west log capacity. Best used as serious zone heat in a single open-plan room of roughly 500–900 sq ft, or as supplemental heat in larger spaces.\u003c\/p\u003e\n\n\u003cdetails open\u003e\n\u003csummary\u003eWho this is for\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003ch3\u003eRight buyer\u003c\/h3\u003e\n\u003cp\u003eOwners of an existing masonry fireplace who want real heat output instead of a decorative open fire, in a single main-floor room, an open-plan small home, a finished basement family room, or a cottage of roughly 500–900 sq ft, with reasonable insulation and access to seasoned hardwood at 15–20% moisture content.\u003c\/p\u003e\n\u003cp\u003eSuited to homeowners whose existing masonry opening is on the smaller side — the Destination 1.9's tapered top and 15.5-inch minimum hearth depth let it fit openings that exclude wider or deeper inserts. The cast-iron arched door, recessed flush-mount blower, and removable air-control handle hidden in the lower louver give it a cleaner finished face than most inserts at the price.\u003c\/p\u003e\n\u003cp\u003eBuyers who want a finished install with a custom mantel, drywall return, or stone face can install the Destination 1.9 without its decorative faceplate — an option that's relatively unusual in the price class.\u003c\/p\u003e\n\n\u003ch3\u003eWrong buyer\u003c\/h3\u003e\n\u003cp\u003eNot for buyers who want set-and-forget heating. Wood-burning inserts require active operation: lighting, monitoring, closing the air at the right moment, deciding when to reload. The 1.1 ft³ firebox can leave usable coals after a long burn, but do not expect steady, high output through an entire night.\u003c\/p\u003e\n\u003cp\u003eNot for buyers expecting 8–14+ hour overnight burns. A 1.1 ft³ non-catalytic firebox gives you 3–4 hours of useful heat from a packed load of dense hardwood, occasionally up to 5 in mild weather; for longer burns, a catalytic or hybrid insert is the right tool.\u003c\/p\u003e\n\u003cp\u003eNot for whole-house primary heat in larger or older homes. The manufacturer's stated 1,200 sq ft upper range is achievable only in well-insulated, open-plan, moderate-climate conditions; in real-world use this is a one-room or one-zone insert, not a whole-house heater.\u003c\/p\u003e\n\u003cp\u003eNot for prefab metal fireplaces — those need a different appliance entirely. Not approved for mobile-home or alcove installation.\u003c\/p\u003e\n\u003cp\u003eNot for buyers without a code-compliant masonry fireplace and chimney. The Destination 1.9 requires a continuous 6-inch listed stainless-steel liner from the insert to the top of the chimney; that liner and its installation are not included in the appliance price.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eAt a glance\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cdiv class=\"spec-list\"\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion technology\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNon-catalytic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eSecondary-air tubes reignite smoke gases. No catalyst to replace; one air-control lever; simpler operation than a cat insert but shorter low-and-slow burn times.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFirebox volume\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e1.1 ft³ overall \/ 1.03 ft³ EPA\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eSmall\/borderline-medium firebox. Sized for one room or one zone, not whole-house heat.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eTested output range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e8,471–31,700 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer CSA B415.1-10 stack-loss method. The realistic operating band buyers should plan around. Dealer pages also cite \"up to 45,000 BTU\/hr\" as a marketing maximum based on a higher loading density.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eHeating range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e250–1,200 sq ft\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer's stated range. Real-world comfort sizing for primary heat is roughly 500–900 sq ft in moderate climates and lower in cold climates or older homes — depends on insulation, layout, climate, ceiling height, fuel quality, and installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eAverage efficiency\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e75% HHV \/ 80% LHV\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003e82% optimum efficiency at low burn rate (LHV). HHV is the federal standard.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eParticulate emissions\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e1.5 g\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eEPA 2020 limits are 2.0 g\/hr crib-wood or 2.5 g\/hr cordwood. The insert is listed as compliant with the 2020 cordwood standard.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum burn time\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUp to 7 hours\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer maximum at the lowest air setting. Useful heat through a burn cycle is realistically 3–4 hours, occasionally up to 5 in mild weather.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eRecommended log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e16 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Most firewood suppliers cut to this length.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e17 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eLimited margin over 16-inch supply cuts. Verify your firewood supply before buying.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eConstruction\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eCarbon steel, cast-iron door\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eWelded carbon-steel firebox with a cast-iron arched door frame. Heavier and flatter-sealing than pressed-steel insert doors.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBaffle\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eC-Cast\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eRigid aluminosilicate fiber baffle rated above 2,000 °F.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eGlass\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e18\" × 8 1\/8\", ceramic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eCeramic glass, 5\/32\" (4 mm) thick, with air-wash. Large viewing area for the firebox class.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBlower\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e90 CFM, included\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eVariable-speed tangential blower (HI \/ LO \/ OFF) with included heat sensor (thermodisc) for automatic on\/off based on insert temperature. Recessed behind the lower louver, flush with the faceplate.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFlue connection\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e6 in\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eTop of the unit. Requires a continuous 6-inch listed stainless-steel chimney liner to the top of the chimney. Sold separately.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMinimum masonry opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e19\" H × 25\" W × 15.5\" D\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eThere is no margin in these figures. Borderline openings will require damper-frame removal and an offset elbow.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eOverall dimensions\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e36\" W × 21\" D × 23 7\/8\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eOverall width includes the standard decorative faceplate. Appliance body width is 28 1\/4\"; minimum masonry opening remains 25\" wide.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eShipping weight\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e336 lb\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePlan for two-person handling. Strip the baffle and secondary tubes (cotter-pin pull) to lighten the chassis during installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMobile home approved\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNo\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eNot certified for mobile-home installation under any configuration.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eAlcove install approved\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNo\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eDesigned for installation in a code-compliant masonry fireplace only.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCountry of origin\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMade in Canada\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufactured by Stove Builder International (SBI) in Saint-Augustin-de-Desmaures, Quebec.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhere it can go\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe Destination 1.9 is designed to slide into an existing code-compliant masonry fireplace with a connected and inspected masonry chimney. It is not approved for installation in a factory-built (prefab) metal fireplace, in a mobile home, in an alcove, in any outdoor or unconditioned space, or as a freestanding stove.\u003c\/p\u003e\n\n\u003ch3\u003eMinimum masonry opening\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eDimension\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHeight\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e19\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eWidth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e25\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eDepth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e15 1\/2\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eIf a fresh-air intake is being installed, add at least 4 inches to the minimum width. Plan for a small installation margin above the insert to seat the liner adapter — an opening exactly at the minimum will be a tight install. Measure carefully before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eFaceplate options\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eConfiguration\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eSize\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eStandard faceplate (included)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e23 7\/8\" × 36\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCuttable extension (optional, SBI AC02082)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e32\" × 44\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eThe standard faceplate covers most masonry openings. For larger openings, the optional cuttable extension attaches to the back of the standard faceplate to cover gaps — the top edge and sides can be trimmed to contour an arched fireplace or to minimize visible flashing. Selected at order if needed.\u003c\/p\u003e\n\n\u003ch3\u003eClearances to combustibles\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eSurface\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eAdjacent combustible side wall\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e16\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible mantel shelf, measured from fireplace base\/platform\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e34\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePlatform \/ floor protection to ceiling\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e72\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eFaceplate to combustible side or top surround\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"data-head\" style=\"margin-top: 18px;\"\u003e\n\u003cspan\u003eSurface\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMax thickness\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible side surround projection \/ thickness\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e3\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible top surround projection \/ thickness\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 1\/2\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible mantel shelf projection \/ thickness\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e12\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eReduced clearances are not available by means of heat shields on this insert — the figures above are the binding minimums.\u003c\/p\u003e\n\n\u003ch3\u003eFloor protection\u003c\/h3\u003e\n\u003cp\u003eThe hearth extension must be a continuous non-combustible surface in front of the door opening. In the USA, 16 inches forward of the door opening and 8 inches of side ember protection; in Canada, 18 inches forward and 8 inches each side. Steel of at least 0.015\" thickness, cement board, brick, or sealed-grout ceramic tiles over a continuous non-combustible sheet may be used. Tile alone is not sufficient — the manual requires a continuous non-combustible sheet beneath any tile installation. The Destination 1.9 includes its own air-jacket bottom protection; floor-protection R-value is calculated only when additional ember protection is needed beyond the existing masonry hearth extension, using the manual's worksheet.\u003c\/p\u003e\n\n\u003ch3\u003eChimney and liner\u003c\/h3\u003e\n\u003cp\u003eThe Destination 1.9 requires a continuous 6-inch stainless-steel chimney liner extending from the insert flue collar to the top of the chimney. The liner must conform to ULC S635 or CAN\/ULC-S640 (Canada) or UL 1777 (USA) and be rated for solid fuel and 2,100 °F operation. The minimum liner height is 12 feet, subject to installer verification, certification label, draft conditions, and local code. The chimney must extend at least 3 feet above the highest point of contact with the roof and at least 2 feet above any roof line or obstacle within 10 feet horizontally.\u003c\/p\u003e\n\u003cp\u003eReduction of the liner diameter below 6 inches is not permitted in the USA — 6 inches is the minimum. In Canada only, a 5-inch liner is permitted if the masonry chimney exceeds 20 feet total height and the application is verified and authorized by a qualified installer. The insert is not approved for a \"positive flue connection\" to clay tile — a continuous stainless liner is required.\u003c\/p\u003e\n\u003cp\u003eAn insulated liner (or pre-insulated liner with a 1\/2-inch wrap) is strongly recommended even for interior chimneys. It improves draft, reduces creosote, and is required by code in some jurisdictions for clearance reasons. A sheet-metal block-off plate sealed at the damper level with high-temp silicone and backed with mineral wool insulation is likewise optional under code but effectively required in practice for the insert to deliver rated performance — without it, jacket-recovered heat is lost into the smoke chamber.\u003c\/p\u003e\n\n\u003ch3\u003eOutside air\u003c\/h3\u003e\n\u003cp\u003eAn optional 5-inch oval fresh-air intake kit is available for code jurisdictions requiring outside combustion air, or for tight new-construction homes with mechanical ventilation. In conventional homes the manual identifies room air as the safest and most reliable supply for combustion; almost all houses have enough natural leakage to provide what the insert needs. A smoke detector and carbon monoxide detector are required in the room where the insert is installed.\u003c\/p\u003e\n\n\u003ch3\u003eCode compliance\u003c\/h3\u003e\n\u003cp\u003eCode compliance for any specific installation is determined by the local Authority Having Jurisdiction. Manufacturer listings cover what the insert is approved for; the AHJ approves what is permitted at your address. A WETT (Canada), NFI, or CSIA (USA) certified installer is strongly recommended and frequently required by code, permit, or insurance. Confirm local requirements before purchasing — particularly in EPA non-attainment counties and in HOA jurisdictions where new wood-burning installs may be restricted.\u003c\/p\u003e\n\n\u003ch3\u003eCalifornia Proposition 65\u003c\/h3\u003e\n\u003cp\u003eThis product can expose you to chemicals including carbon monoxide, which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.P65warnings.ca.gov.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat's in the box, what you'll add\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003ch3\u003eShips with the insert\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDestination 1.9 insert with cast-iron arched door and standard decorative faceplate\u003c\/li\u003e\n\u003cli\u003e90 CFM variable-speed tangential blower with included heat sensor (thermodisc) for automatic on\/off\u003c\/li\u003e\n\u003cli\u003eC-Cast baffle and stainless-steel secondary-air tube assembly\u003c\/li\u003e\n\u003cli\u003eRefractory brick lining\u003c\/li\u003e\n\u003cli\u003eRemovable wood-grip air-control handle\u003c\/li\u003e\n\u003cli\u003eOwner's manual and product documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSold separately\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e6-inch stainless-steel chimney liner sized for the full height of the chimney, with appliance connector, top plate, and rain cap — required, not optional\u003c\/li\u003e\n\u003cli\u003e15° or 30° fixed stainless offset elbow at the insert collar — needed on most installs where the masonry flue is offset from the insert\u003c\/li\u003e\n\u003cli\u003eInsulation wrap for the liner (or a pre-insulated liner) — strongly recommended for all installs, code-required in some\u003c\/li\u003e\n\u003cli\u003eSheet-metal block-off plate, high-temp silicone, and mineral wool insulation — effectively required in practice for the insert to deliver rated performance\u003c\/li\u003e\n\u003cli\u003eHearth pad or hearth extension sized to manual specifications, with continuous non-combustible sheet beneath any tile\u003c\/li\u003e\n\u003cli\u003eOptional cuttable faceplate extension (SBI AC02082) — see \"Where it can go\" for details\u003c\/li\u003e\n\u003cli\u003eOptional rigid fire screen (SBI AC01213) — prohibited for open-door use in the United States or in provinces\/jurisdictions with particulate-emission limits; do not use with the blower or with an offset liner adapter\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch oval fresh-air intake kit for code or mechanical-ventilation requirements\u003c\/li\u003e\n\u003cli\u003ePin-type wood moisture meter — not optional in practice\u003c\/li\u003e\n\u003cli\u003eInstallation by an authorized qualified technician (WETT, NFI, or CSIA certified) — required for warranty coverage and often required by code, permit, or insurance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow it actually performs\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe 31,700 BTU\/hr tested peak is a real number, achieved on dry cordwood with the air control fully open in the first hour or so of a high-burn cycle. The dealer-marketing \"up to 45,000 BTU\/hr\" figure assumes a higher loading density than the EPA test prescribes. The figure that matters for daily life is the sustained output across a full burn cycle, which depends heavily on wood density, moisture, and air setting.\u003c\/p\u003e\n\n\u003cp\u003eA realistic operating day in a well-insulated 600–800 sq ft open-plan room: morning reload on warm coals produces a fast 60-minute warm-up and 2–3 hours of strong output; mid-afternoon reload sustains heat through evening; a final pack at bedtime gives 3–4 hours of useful heat with the air shut down, leaving coals by morning. With seasoned oak, maple, hickory, or beech, expect 3–4 hours of useful heat per packed load; with birch, pine, or softer wood, 2–3.\u003c\/p\u003e\n\n\u003cp\u003eThe 17-inch maximum log capacity has limited margin over the 16-inch standard supplier cut. Confirm your firewood supply before buying — even a half-inch over forces awkward angled loading. The firebox is loaded east-west; north-south loading is not practical at this depth.\u003c\/p\u003e\n\n\u003cp\u003eThe included 90 CFM tangential blower meaningfully improves heat transfer from the air jacket into the room. There are two controls: a manual rheostat marked HI \/ LO \/ OFF that you set, and an automatic heat sensor (thermodisc) that decides when the blower actually runs. Set the rheostat to LO or HI, and the sensor handles the rest — the insert takes about an hour to reach blower-activation temperature from a cold start, then the sensor starts the blower automatically and shuts it off when the insert cools at the end of a burn. No need to remember to start it once the fire is going or shut it off when the fire dies down. At lower settings the blower is unobtrusive; at higher settings it is audible. SBI's design philosophy is deliberately to push slower, hotter air rather than higher CFM cool air; expect to run it at LO most of the time. Without the blower — in a power outage, for example — the insert will still burn safely; the room will receive less convective heat transfer, with most of the available heat being radiant through the glass.\u003c\/p\u003e\n\n\u003cp\u003eAir-wash glass stays largely clear during proper hot burns at moderate-to-high air settings. At low burn rates — particularly overnight loads with the air choked down — the small firebox produces less velocity over the glass than larger inserts, and tar will form on the lower edges and corners. This is universal to non-catalytic small inserts in this class, not specific to Enerzone. The fix is a daily 15–20 minute hot cleanup burn, dry wood at 20% moisture or below, and tolerance for a brief glass wipe more often than larger inserts demand. Cleanest-glass operation comes from running this insert hot-and-fast for 1–3 hours per load rather than slow-and-low.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eTrade-offs to know\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eSmall firebox, short burns.\u003c\/strong\u003e A 1.1 ft³ non-cat insert gives you simpler operation and lower up-front cost than a hybrid or catalytic, but you pay for it with shorter burns. If you want to load at 9 PM and have meaningful heat at 6 AM, this is not the right tool — that is what a Lopi Answer NexGen-Hybrid or a Blaze King Sirocco insert is built for. Plan on reloading every 2–3 hours during active heating and accepting that overnight will end at coals.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe 1,200 sq ft figure is aspirational.\u003c\/strong\u003e The most consistent owner regret across small SBI inserts is buying for the high end of the manufacturer's heating range. If you need to reliably heat more than ~900 sq ft as primary winter heat, step up a firebox size — the larger SBI inserts, the Pacific Energy Super, or the Lopi Answer all give meaningfully more usable heat for the same operational effort.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood quality is not negotiable.\u003c\/strong\u003e The most common \"the insert doesn't heat\" complaint comes from owners running 22–25% moisture wood. The advanced combustion features only work in the 15–20% range. A $25 pin-type moisture meter is the single best accessory for this insert.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGlass blackens at low burn rates.\u003c\/strong\u003e Universal to non-cat tube inserts in this firebox class. Daily hot cleanup burns and tolerance for a periodic wipe are part of operating this insert. Owners chasing always-clear glass on long, slow burns should look at catalytic technology.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLiner, block-off plate, and labor are not in the appliance price.\u003c\/strong\u003e The insert is the appliance; the chimney liner, the block-off plate, the insulation wrap, and the professional installation are separate purchases that need to be planned for. Older or taller chimneys, offset flues, and damper-frame removal add to install complexity. Skipping the liner, the block-off plate, or the insulation wrap saves money up front and costs measurable performance and creosote durability after.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHeavy-duty internals, mid-tier finish.\u003c\/strong\u003e The cast-iron arched door, C-Cast baffle, lifetime weld warranty, and recessed flush blower are strong points for the category. The overall fit-and-finish is practical rather than luxury: this is a heating appliance first, not a furniture-grade cast-iron showpiece. If the insert sits in a high-traffic design space, that matters; in a basement, cottage, or rural living room, it may not.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eOwner's manual is generic.\u003c\/strong\u003e SBI's manual is shared across many of their inserts and stoves and is light on model-specific operating tips. Plan on building burn-rate intuition over the first month of use; the operating section of this page is a useful supplement.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eOperating reality\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eFirst burns.\u003c\/strong\u003e The first three to six fires release paint VOCs as the high-temperature stove paint cures. The smell is strong but not toxic. Open windows, run the insert hot, expect the smell to disappear permanently after the cure-in.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLighting.\u003c\/strong\u003e The manual describes a top-down conventional method as effective on the Destination 1.9 — small splits at the base, smaller splits crossed over them, kindling on top, fire starter at the very top, light the top. Cleaner ignition, less smoke, faster to operating temperature. Leave the door slightly ajar for about 5 minutes during light-off; close once the fire is well established.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAir control.\u003c\/strong\u003e The control is located above the door and uses a removable wood-grip handle that clips into the lower louver. Slide the handle onto the air-control stem only when adjusting; do not leave it on during use, as the metal stem gets very hot. Full open at light-off, gradually closed only after the load is fully engaged and stable secondary flames are established. A flue thermometer is strongly recommended; without one, you are guessing at draft, burn rate, and overfire risk.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eReload cadence.\u003c\/strong\u003e 2–3 hours between reloads in active heating use; up to 4 hours for a final overnight pack with the air shut hard. Open the air, wait 30 seconds, open the door slowly to avoid spilling smoke into the room. Turn the blower OFF before opening the door fully — otherwise it will blow ash out of the firebox.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAsh management.\u003c\/strong\u003e The Destination 1.9 uses a hollow-bottom firebox rather than an external ash drawer; ash is scooped manually from the front. The manual recommends emptying every 2–3 days during full-time heating. Always dispose of ash in a tightly covered metal container on a non-combustible surface, well away from combustible materials — ash retains hot embers for days.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGlass cleaning.\u003c\/strong\u003e Damp newspaper dipped in cold ash, or a dedicated ceramic-glass cleaner. Daily wipe during low-burn weather; weekly during high-burn. Black streaks at the lower edge mean wet wood; black uniformly across the glass means burns are running too cool.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoor and glass gaskets.\u003c\/strong\u003e The door gasket needs replacement when the paper-strip test fails: close the door on a strip of paper and try to pull it out; firm resistance means the gasket is sealing, easy pull means it's time to replace. Test all the way around the door, not just at the latch. Glass gasket replaces likewise. Materials run $20–$40 per gasket; replacement is a 30-minute job. Plan on every 3–5 seasons in regular use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAnnual chimney sweep.\u003c\/strong\u003e Per the manual, the chimney and liner should be cleaned and inspected at least once each year. Inspect every two months during the heating season until you know your creosote-formation rate; monthly is safer for new burners. If buildup reaches 1\/8 inch, sweep immediately. The baffle and secondary tubes lift out for sweep access — cotter-pin pull on the tubes, then drop the baffle.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood seasoning.\u003c\/strong\u003e Hardwood needs 12–24 months split, stacked off the ground, top-covered, with sun and wind on the sides. Don't trust supplier \"seasoned\" claims — use a pin-type moisture meter, split a piece in half, measure the fresh face. Manual target: 15–20% moisture. Wood above 25% will smolder, soot the glass, line the chimney with creosote, and undercut every published efficiency and emissions number on this page.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlower maintenance.\u003c\/strong\u003e Vacuum the blower fins annually. Do not oil the blower unless the manual specifically calls for lubrication. Field-failure rates on the SBI tangential blower are low, and replacement blowers and related service parts are available through SBI's parts network and aftermarket suppliers if needed years out.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat never to burn.\u003c\/strong\u003e Per the manual and EPA fuel rules: no coal, garbage, yard waste, materials containing rubber or plastic, waste petroleum products, paint or paint thinners, asphalt products, painted or pressure-treated wood, railroad ties, pallets, manure or animal remains, plywood, particle board, paper products, asbestos materials, construction or demolition debris, salt-water driftwood, or unseasoned wood. This does not prohibit normal fire starters made from paper, cardboard, sawdust, wax, or similar substances when used only to start a fire. Burning prohibited materials destroys the firebox, voids the warranty, and releases toxic compounds into your home and the chimney.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWarranty and service\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe Enerzone limited lifetime warranty applies to the original retail purchaser only and is non-transferable. The warranty applies to normal residential use only. Proof of purchase (dated bill of sale), model name, and serial number are required for any warranty claim. Online registration is recommended at enerzone-intl.com but not required if a dated invoice is retained.\u003c\/p\u003e\n\n\u003ch3\u003eCoverage by component\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eComponent\u003c\/span\u003e\u003cspan\u003eParts\u003c\/span\u003e\u003cspan\u003eLabor\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustion chamber welds, cast-iron door frame\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCeramic glass, plating manufacturing defects, convector air-mate\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eSurrounds, heat shields, ash shelf, faceplate, C-Cast baffle, secondary air tubes\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e7 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHandle assembly, glass retainers, air control mechanism\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e3 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCarbon-steel firebox components\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eBlower, heat sensors, switches, rheostat, wiring, electronics\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e2 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePaint (peeling), gaskets, insulation, ceramic fiber blankets, and other options\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eReplacement parts under warranty\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e90 d\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eA one-time replacement limit applies to all parts with lifetime coverage. Warranty is void if the unit is used to burn anything other than seasoned cordwood, or if it is not operated according to the owner's manual. Damage caused by misuse, improper installation, lack of maintenance, overfiring, downdrafts, venting problems, or under-estimated heating area is not covered. Improper installation by anyone other than an authorized qualified technician voids the warranty.\u003c\/p\u003e\n\n\u003cp\u003eWarranty claims are made through your Enerzone dealer and remain subject to SBI\/Enerzone inspection, approval, and the current written warranty. Kaminos is the retailer for this insert and supports buyers through purchase; final warranty approval rests with SBI as the manufacturer. SBI's parts network is well-stocked — replacement bricks, baffle, secondary tubes, glass, gaskets, and blower are openly available at fair prices through multiple parts vendors.\u003c\/p\u003e\n\n\u003cp class=\"warranty-note\"\u003eEnerzone may require photos or returned parts to support a claim; repair work covered by warranty requires prior manufacturer approval.\u003c\/p\u003e\n\n\u003cp class=\"warranty-note\"\u003eCoverage details can change by component and warranty revision; the current Enerzone warranty controls.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCompare with\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eOsburn Matrix 1900\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eMechanically identical SBI chassis — same firebox, same blower, same baffle, same minimum opening. Different cast-iron faceplate styling and door overlay options (black or brushed nickel). Choose this if you prefer the Osburn aesthetic; performance is the same.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eDrolet Escape 1500-I\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eBigger 1.9 ft³ overall firebox at a lower price, with the shallowest depth in class (12.75\") and an 18-inch log capacity. Needs a wider 27.5-inch minimum opening, so it won't fit some smaller hearths the Destination 1.9 will. Same SBI parent, same warranty, plainer styling and pressed-steel door framing.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003ePacific Energy Super LE Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eA meaningful step up. 2.0 ft³ firebox, premium build, sealed-firebox technology, longer realistic 6–8 hour burns, better heat retention. Won't fit the smallest hearths and typically costs $1,000–$1,500 more delivered. Choose this if your hearth can take it and primary heat for a larger space is the goal.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eLopi Answer NexGen-Hybrid\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eDifferent category — hybrid catalytic technology, longer low-output burns (cleanly 6–8 hours), USA-made, premium fit and finish. The most-recommended cross-shop on hearth-enthusiast forums for buyers who want primary heat from a small insert. Adds catalytic-stove complexity, catalyst monitoring, and eventual catalyst replacement, with a learning curve the Destination 1.9 avoids.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eRegency I1500 \/ Alterra Small\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eComparable 1.4 ft³ small flush-mount insert, often dealer-recommended for chill-chasing or ambience use. Heat output broadly similar to the Destination 1.9 in practice; choose between them on aesthetics and dealer access.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cp class=\"pull\"\u003eThe Destination 1.9 is a small-room workhorse. If you have a masonry fireplace, seasoned wood, time to feed it, and a code-compliant liner installed, it heats one zone honestly. That is the entire promise.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Enerzone","offers":[{"title":"Default Title","offer_id":50192476963009,"sku":"EB00066","price":3793.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/Enerzone_Destination_1.9_Wood_Insert_kaminos_life_style.webp?v=1778191821"},{"product_id":"enerzone-destination-2-3-wood-insert","title":"Enerzone Destination 2.3 Wood Insert","description":"\u003cstyle\u003e\n  .km-desc, .km-desc * { box-sizing: border-box; max-width: 100%; }\n  .km-desc { width: 100%; }\n  .km-desc p { margin: 0 0 14px; }\n  .km-desc h3 { font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px; font-weight: 600; color: #9B774D; margin: 22px 0 10px; }\n  .km-desc .spec-list { margin: 12px 0 0; }\n  .km-desc .spec-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .spec-row:first-child { border-top: 1px solid rgba(75,72,75,0.35); 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}\n  .km-desc .data-row .data-label { color: #4B484B; line-height: 1.4; }\n  .km-desc .data-row .data-val { font-weight: 600; color: #231F20; text-align: right; min-width: 56px; }\n  .km-desc .data-head { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; padding-bottom: 8px; font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px; font-weight: 600; color: #4B484B; }\n  .km-desc .data-head span:nth-child(2), .km-desc .data-head span:nth-child(3) { text-align: right; min-width: 56px; }\n  .km-desc ul { list-style: none; padding: 0; margin: 10px 0 14px; }\n  .km-desc ul li { padding: 4px 0 4px 18px; position: relative; line-height: 1.55; }\n  .km-desc ul li:before { content: \"—\"; position: absolute; left: 0; color: #9B774D; font-weight: 500; }\n  .km-desc .compare-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .compare-row:last-child { border-bottom: 0; }\n  .km-desc .compare-name { font-weight: 600; color: #231F20; display: inline-block; padding-bottom: 1px; }\n  .km-desc .compare-orient { color: #4B484B; margin-top: 4px; font-size: 13px; line-height: 1.5; }\n  .km-desc .pull { font-style: italic; font-size: clamp(16px, 4.2vw, 22px); line-height: 1.4; color: #231F20; border-left: 2px solid #9B774D; padding: 0 0 0 16px; margin: 32px 0 16px; }\n  .km-desc .lede { font-size: clamp(16px, 4vw, 22px); line-height: 1.4; letter-spacing: -0.2px; font-weight: 400; color: #231F20; margin: 0 0 24px; }\n  .km-desc .warranty-note { font-size: 12px; color: #4B484B; font-style: italic; margin-top: 14px; }\n  .km-desc details { border-top: 1px solid rgba(75,72,75,0.18); margin: 0; padding: 0; }\n  .km-desc details:last-of-type { border-bottom: 1px solid rgba(75,72,75,0.18); }\n  .km-desc details \u003e summary { list-style: none; cursor: pointer; padding: 18px 32px 18px 0; position: relative; font-size: clamp(16px, 4.2vw, 20px); line-height: 1.3; font-weight: 500; color: #231F20; letter-spacing: -0.2px; }\n  .km-desc details \u003e summary::-webkit-details-marker { display: none; }\n  .km-desc details \u003e summary::after { content: \"+\"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-size: 22px; font-weight: 300; color: #9B774D; line-height: 1; }\n  .km-desc details[open] \u003e summary::after { content: \"−\"; }\n  .km-desc details \u003e summary:focus-visible { outline: 2px solid #9B774D; outline-offset: 4px; }\n  .km-desc details \u003e .acc-body { padding: 0 0 28px 0; }\n\u003c\/style\u003e\n\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #231f20; line-height: 1.55; width: 100%; max-width: 100%; box-sizing: border-box; margin: 0; padding: 0; font-size: 16px; overflow-wrap: break-word; word-wrap: break-word; word-break: normal;\"\u003e\n\u003cdiv class=\"km-desc\"\u003e\n\u003cp class=\"lede\"\u003eA 2.4 ft³ non-catalytic medium-large wood insert designed for installation in an existing masonry fireplace — the Enerzone-tier contemporary cast-iron flush-mount option in the Destination line. EPA 2020 cordwood certified at 72% HHV efficiency, with a 20-inch maximum east-west log capacity, up to 2,100 sq ft of heating area, an 8-hour maximum burn time, 75,000 BTU\/hr maximum output, and a heat-activated 90 CFM blower included as standard.\u003c\/p\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eWho this is for\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003ch3\u003eRight buyer\u003c\/h3\u003e\n\u003cp\u003eOwners of a working masonry fireplace who want to convert an inefficient open hearth into a serious heat source — up to 2,100 sq ft of zone heating capability with a 2.4 ft³ firebox, 20-inch log capacity, and an 8-hour maximum burn cycle. Reasonable insulation, access to seasoned hardwood at 15–20% moisture, and an existing masonry fireplace that meets the minimum opening dimensions (23 3\/4\" H × 28 7\/8\" W × 19 5\/8\" D per manual) are the basic requirements.\u003c\/p\u003e\n\u003cp\u003eBuyers who want a contemporary aesthetic. The Destination 2.3 ships with a smooth cast-iron flush-mount surround designed to sit nearly flush with the masonry — a cleaner, more modern look than traditional louvered insert faces. The 35 7\/8\" × 25\" standard surround fits most modern masonry openings; optional backing plates extend the cover area for older or larger openings.\u003c\/p\u003e\n\u003cp\u003eBuyers who want a single appliance to do the work of zone heating across a main living area. The 14,200–44,500 BTU\/hr tested output band covers shoulder-season heating on the low end and serious cold-snap output on the high end. With the heat-activated 90 CFM blower, warm air circulates from the firebox jacket out into the room automatically once the insert is up to temperature.\u003c\/p\u003e\n\u003ch3\u003eWrong buyer\u003c\/h3\u003e\n\u003cp\u003eNot for buyers without an existing code-compliant masonry fireplace. Wood inserts must be installed inside a lined masonry fireplace with a continuous stainless-steel chimney liner running the full height. This insert is not approved for factory-built (prefab) metal fireplaces, mobile homes, or any installation outside a masonry hearth.\u003c\/p\u003e\n\u003cp\u003eNot for buyers expecting 10+ hour overnight burns. The 8-hour manufacturer maximum is achievable on a packed load of dense hardwood with the air shut down hard, but useful heat from a packed load is realistically 6–7 hours. For longer burns, step up to a 3.0+ ft³ firebox or consider catalytic technology.\u003c\/p\u003e\n\u003cp\u003eNot for buyers wanting traditional decorative cast-iron styling. The Destination 2.3 surround is intentionally clean and modern — sleek lines, minimal ornamentation, picture-frame proportions. Buyers wanting heavy decorative cast iron should look at the Osburn Matrix Insert (same platform, more traditional look) or premium-tier alternatives.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAt a glance\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cdiv class=\"spec-list\"\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion technology\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNon-catalytic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eSecondary-air tubes reignite smoke gases. No catalyst to replace; one air-control lever; simpler operation than a cat stove but shorter low-and-slow burn times.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eInstallation type\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMasonry insert\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInstalls inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. Not approved for factory-built fireplaces, mobile homes, or freestanding installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFirebox volume\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e2.4 ft³ overall \/ 1.95 ft³ EPA\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Medium-large firebox sized for zone heating across 500–2,100 sq ft. The overall figure includes a buffer zone above the EPA loading line; the 1.95 ft³ figure is the usable loading volume used during EPA emissions certification.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum heat output\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e75,000 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePeak output on dry cordwood, transient. Sustained output across a burn cycle is substantially lower.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eTested output range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e14,200–44,500 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer CSA B415.1-10 stack-loss method. The realistic operating band buyers should plan around.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eHeating range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e500–2,100 sq ft\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer's stated range. Real-world comfort sizing for primary heat is roughly 1,200–1,800 sq ft in moderate climates and lower in cold climates or older homes — depends on insulation, layout, climate, ceiling height, fuel quality, and installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eAverage efficiency\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e72% HHV \/ 77% LHV\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003e79% optimum overall efficiency at low burn rate; 76% optimum heat transfer efficiency. HHV is the federal standard. Government incentives may apply by jurisdiction and installation date.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eParticulate emissions\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e2.3 g\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eEPA 2020 limits are 2.0 g\/hr crib-wood or 2.5 g\/hr cordwood. The insert is listed as compliant with the 2020 cordwood standard.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum burn time\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUp to 8 hours\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer maximum at the lowest air setting. Useful heat through a burn cycle is realistically 6–7 hours.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eRecommended log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e16 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Most firewood suppliers cut to this length.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e20 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003e4-inch margin over the recommended length — meaningful for buyers with access to longer-cut firewood. Logs load across the width of the firebox, sides visible from the door.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eConstruction\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eCarbon steel, cast-iron surround\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eWelded carbon-steel firebox with a contemporary cast-iron flush-mount surround and arched cast-iron glazed door. Lifetime warranty on the combustion-chamber welds.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eGlass door\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e18\" × 11 7\/8\", ceramic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eLarge arched ceramic glass with air-wash, 5\/32\" (4 mm) thick, tested to 1,400 °F. The picture-frame surround makes the glass the visual focus. Replacement glass must be a SCHOTT ceramic with the same specification — no substitute materials.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBlower\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eIncluded, 90 CFM heat-activated\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Heat-activated assembly with three-position switch: AUTO (starts when insert is hot, stops when cool), MANUAL (runs continuously), or OFF. Mounted on a drawer-style chassis behind the bottom faceplate for service access. Without the blower, heat distribution from an insert relies almost entirely on radiant heat through the glass — most of the firebox is enclosed in the masonry cavity, so the blower is what gets the heat into the room.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBaffle\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eC-Cast\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eRigid aluminosilicate fiber baffle rated above 2,000 °F.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFlue connection\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e6 in (insert liner)\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eTop of the unit. Requires a continuous stainless-steel chimney liner running the full height of the masonry chimney. Liner must conform to UL 1777 (USA), CAN\/ULC-S635, or CAN\/ULC-S640 (Canada). Per manual, minimum chimney height 12 feet. Sold separately.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion chamber\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e21\" W × 16 3\/4\" D × 11 7\/8\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInside firebox dimensions per manufacturer spec. Wider than deep; the 16 3\/4\" depth is generous enough to accept N-S loading for packed cold-weather cycles in addition to the default E-W loading.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDoor opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e17 1\/2\" W × 8 3\/4\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eLoading door opening. The wide door accommodates 20-inch logs loaded east-west.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMinimum masonry opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e23 3\/4\" H × 28 7\/8\" W × 19 5\/8\" D\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Confirm fireplace dimensions before ordering. See \"Where it can go\" for backing plate and projection kit options.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eShipping weight\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e478 lb (without option)\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Appliance weight installed: 422 lb. Plan for professional installation — this is heavy work in a confined space.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCountry of origin\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMade in Canada\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufactured by Stove Builder International (SBI) in Saint-Augustin-de-Desmaures, Quebec.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhere it can go\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cp\u003eThe Destination 2.3 Insert is approved only for installation inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. It is not approved for installation in factory-built (prefab) metal fireplaces, in mobile or manufactured homes, in alcoves, or as a freestanding unit. The masonry fireplace and chimney must be inspected before installation for cracks, loose mortar, creosote, blockage, or other signs of deterioration.\u003c\/p\u003e\n\u003ch3\u003eMinimum masonry opening\u003c\/h3\u003e\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eDimension\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHeight\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e23 3\/4\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eWidth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e28 7\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eDepth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e19 5\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 14px;\"\u003eIf a fresh-air intake is being installed, add a minimum of 4 inches to the width. Plan for a small installation margin above the insert to seat the liner adapter — an opening exactly at the minimum will be a tight install. Measure carefully before ordering.\u003c\/p\u003e\n\u003ch3\u003eProjection kit (optional)\u003c\/h3\u003e\n\u003cp\u003eIf the fireplace depth is less than the minimum 19 5\/8\", the optional projection kit (SBI AC01323) extends the insert 2 or 4 inches forward of the fireplace facing. With the kit installed, the depth requirement reduces to 17 5\/8\" (2\" projection) or 15 5\/8\" (4\" projection). The projection kit requires an optional backing plate (AC01322 or AC01332) to be installed first — the projection kit attaches to the backing plate, not directly to the insert. Ordered as a separate accessory.\u003c\/p\u003e\n\u003ch3\u003eFaceplate options\u003c\/h3\u003e\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eConfiguration\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eSize\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eStandard surround (included)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e35 7\/8\" × 25\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eOptional backing plate (SBI AC01322)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e29\" × 44\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eOptional backing plate (SBI AC01332)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e29\" × 50\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 14px;\"\u003eThe standard cast-iron flush-mount surround covers most masonry openings. For larger openings, an optional backing plate attaches to the back of the standard surround to extend the cover area and seal off the fireplace face. For raised-hearth installations, matching bottom backing plates (AC01321 for 44\" × 6\" or AC01333 for 50\" × 6\") are available. Selected at order if needed.\u003c\/p\u003e\n\u003ch3\u003eClearances to combustibles\u003c\/h3\u003e\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eSurface\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eAdjacent combustible side wall\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e16\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eFaceplate to combustible side or top surround\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e9\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible mantel shelf\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible top surround projection\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePlatform \/ floor protection to ceiling\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e84\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 18px;\" class=\"data-head\"\u003e\n\u003cspan\u003eSurface\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMax thickness\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible side surround\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible mantel shelf projection\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e12\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 14px;\"\u003eReduced clearances are not available by means of heat shields on this insert — the figures above are the binding minimums.\u003c\/p\u003e\n\u003ch3\u003eFloor protection\u003c\/h3\u003e\n\u003cp\u003eFloor protection requirements depend on whether the existing masonry hearth is raised 5 inches or more above the surrounding combustible floor. If the hearth is raised 5 inches or more, a non-combustible floor protector with no R-value is required and must extend at least 16 inches in front of the unit in the USA, 18 inches in Canada. If the hearth is raised less than 5 inches, a non-combustible floor protector with an R-value of at least 1.00 is required and must extend at least 23 inches in front of the unit. The manual includes a thermal-resistance lookup table for common floor protection materials (brick, cement board, ceramic tile, marble) to calculate the required R-value combination.\u003c\/p\u003e\n\u003ch3\u003eChimney and liner\u003c\/h3\u003e\n\u003cp\u003eThe Destination 2.3 requires a continuous 6-inch stainless-steel chimney liner extending from the insert flue collar to the top of the chimney. The liner must conform to ULC S635 or CAN\/ULC-S640 (Canada) or UL 1777 (USA) and be rated for solid fuel. Per the manual, minimum chimney height is 12 feet. The chimney must extend at least 3 feet above the highest point of contact with the roof and at least 2 feet above any roof line or obstacle within 10 feet horizontally, subject to local code and installer verification.\u003c\/p\u003e\n\u003cp\u003eReduction of the liner diameter below 6 inches is not permitted in the USA — 6 inches is the minimum. In Canada only, a 5-inch liner is permitted if the masonry chimney exceeds 20 feet total height and the application is verified and authorized by a qualified installer. The insert is not approved for a \"positive flue connection\" to clay tile — a continuous stainless liner is required.\u003c\/p\u003e\n\u003cp\u003eIf the existing fireplace's throat damper is to remain, it must be locked open to clear the liner; otherwise the damper plate must be removed. A sheet-metal block-off plate (or, in Canada per CSA B365, mineral wool packing around the liner) is recommended at the throat to reduce cold-air backdraft into the room. An insulated liner (or pre-insulated liner with a wrap) improves draft and reduces creosote, and is required by code in some jurisdictions for clearance reasons.\u003c\/p\u003e\n\u003ch3\u003eOutside air\u003c\/h3\u003e\n\u003cp\u003eAn optional fresh-air intake kit is available for code jurisdictions requiring outside combustion air or for tight new-construction homes with mechanical ventilation. A smoke detector and carbon monoxide detector are required in the room where the insert is installed.\u003c\/p\u003e\n\u003ch3\u003eCode compliance\u003c\/h3\u003e\n\u003cp\u003eCode compliance for any specific installation is determined by the local Authority Having Jurisdiction. Manufacturer listings cover what the insert is approved for; the AHJ approves what is permitted at your address. A WETT (Canada), NFI, or CSIA (USA) certified installer is strongly recommended and frequently required by code, permit, or insurance. In Canada the CSA B365 standard applies; in the USA, ANSI NFPA 211 applies. Confirm local requirements before purchasing.\u003c\/p\u003e\n\u003ch3\u003eCalifornia Proposition 65\u003c\/h3\u003e\n\u003cp\u003eThis product can expose you to chemicals including carbon monoxide, which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.P65warnings.ca.gov.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat's in the box, what you'll add\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003ch3\u003eShips with the insert\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDestination 2.3 wood insert (EB00044) with welded carbon-steel firebox, arched cast-iron glazed door, and contemporary cast-iron flush-mount surround\u003c\/li\u003e\n\u003cli\u003eHeat-activated 90 CFM blower assembly with AUTO\/MANUAL\/OFF switch, drawer-mounted for service access\u003c\/li\u003e\n\u003cli\u003eC-Cast baffle and stainless-steel secondary-air tube assembly\u003c\/li\u003e\n\u003cli\u003eHigh-density refractory firebrick lining\u003c\/li\u003e\n\u003cli\u003eLiner starter adapter brackets and hardware\u003c\/li\u003e\n\u003cli\u003eDamper-removal warning plate (for installations where the masonry throat damper is removed)\u003c\/li\u003e\n\u003cli\u003eOwner's manual and product documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSold separately\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e6-inch continuous stainless-steel chimney liner kit (UL 1777, CAN\/ULC-S635, or CAN\/ULC-S640) — required for installation, sized to the chimney height\u003c\/li\u003e\n\u003cli\u003eHearth extension or floor protector sized per manual specifications, with R-value of at least 1.00 if hearth is raised less than 5 inches\u003c\/li\u003e\n\u003cli\u003eOptional faceplate backing plate (SBI AC01322 or AC01332) — see \"Where it can go\" for details\u003c\/li\u003e\n\u003cli\u003eOptional bottom faceplate backing plate (AC01321 or AC01333) — for raised-hearth installations; see \"Where it can go\" for details\u003c\/li\u003e\n\u003cli\u003eOptional projection kit (SBI AC01323) — see \"Where it can go\" for details\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch fresh-air intake kit (SBI AC01298) — for code jurisdictions requiring outside combustion air or for tight new-construction homes\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch insulated flex pipe for fresh-air intake (SBI AC02090) — UL 181 class 0 or class 1 insulated HVAC pipe\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch fresh-air intake register with airtight damper (SBI AC01349) — closable outside-air damper; do not close while the insert is in use\u003c\/li\u003e\n\u003cli\u003eOptional rigid fire screen (SBI AC01315) — not permitted for open-door use in the United States or in Canadian provinces\/jurisdictions with particulate-emission limits; never leave the insert unattended when used with a fire screen\u003c\/li\u003e\n\u003cli\u003eOptional liner offset adapter or liner fastening system (SBI AC02006) — for installations where the chimney throat geometry requires offset connection; restricts flow somewhat and should only be used when no other option is possible and chimney height is at least 20 feet\u003c\/li\u003e\n\u003cli\u003ePin-type wood moisture meter — not optional in practice\u003c\/li\u003e\n\u003cli\u003eFlue thermometer — strongly recommended for insert installations since stove-top temperature isn't accessible\u003c\/li\u003e\n\u003cli\u003eInstallation by an authorized qualified technician (WETT, NFI, or CSIA certified) — required for warranty coverage and often required by code, permit, or insurance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow it actually performs\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cp\u003eThe 75,000 BTU\/hr maximum is a peak rating, transient, achieved on dry cordwood at high loading density and short reload intervals. The figure that matters for daily life is the sustained output across a full burn cycle, which lands in the 14,200–44,500 BTU\/hr band per the CSA B415.1-10 stack-loss method — a usable range that covers shoulder-season heating on the low end and serious cold-snap output on the high end.\u003c\/p\u003e\n\u003cp\u003eA realistic burn cycle from a packed load of well-seasoned hardwood produces a 30–45 minute warm-up, 2–3 hours of strong sustained heat once the firebox and surrounding masonry come up to temperature, then a gradual decline over the next 3–4 hours with a coal bed remaining. Total useful heat from one full pack is realistically 6–7 hours, occasionally approaching the 8-hour manufacturer maximum with dense hardwood, mild weather, and a packed coal bed.\u003c\/p\u003e\n\u003cp\u003eThe masonry around the insert acts as a thermal mass. Once the surrounding brick or stone is up to temperature, it continues radiating heat into the room well after the active fire has died down. This is one of the underappreciated benefits of an insert versus a freestanding stove — the masonry stores and releases heat on its own cycle. The first hour from a cold start is the slowest because that mass has to come up to temperature; once it's hot, response time is faster.\u003c\/p\u003e\n\u003cp\u003eThe 90 CFM heat-activated blower is what gets the heat into the room. Because most of the insert's firebox sits inside the masonry cavity, the radiant heat that would otherwise reach the room from a freestanding stove is partly absorbed by the surrounding brick. The convection jacket around the firebox captures that heat and the blower pushes it out through the bottom of the surround. With the switch in AUTO, the blower starts automatically once the insert is hot enough and stops when it cools — set the position and forget about it. With the switch in MANUAL, the blower runs continuously regardless of insert temperature.\u003c\/p\u003e\n\u003cp\u003eAllow the insert to reach operating temperature (approximately one hour from a cold start) before turning the blower to MANUAL. Per the manual, turning the blower on too early during start-up pulls heat away from the firebox and slows the build-up to clean combustion. AUTO mode handles this timing automatically.\u003c\/p\u003e\n\u003cp\u003eAir-wash glass stays largely clear during proper hot burns at moderate-to-high air settings. At low burn rates with marginally seasoned wood, the glass will tar. This is universal to non-catalytic stoves and inserts, not specific to Enerzone.\u003c\/p\u003e\n\u003cp\u003ePower-failure operation: the insert continues to burn safely without electricity — only the blower stops. Heat distribution drops noticeably without the blower because the masonry cavity absorbs most of the firebox radiation. Plan accordingly if you're buying this insert specifically as a power-outage heat source.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eTrade-offs to know\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cp\u003e\u003cstrong\u003eInsert, not a freestanding stove.\u003c\/strong\u003e The Destination 2.3 requires an existing masonry fireplace plus a full stainless-steel chimney liner — there's no other approved installation path. Buyers without a masonry fireplace should look at a freestanding equivalent (Enerzone Solution 2.3 or Osburn 2000) instead.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSame firebox as the Solution 2.3-I and Osburn Matrix Insert.\u003c\/strong\u003e The Destination 2.3, the Enerzone Solution 2.3-I, and the Osburn Matrix Insert share the same SBI medium-large insert performance platform — same firebox, same combustion chamber, same 20-inch log capacity, same 75,000 BTU\/hr maximum output. The differences are surround style, blower CFM, and emissions tuning. The Destination 2.3 has the contemporary flush-mount surround and a 90 CFM blower; the Solution 2.3-I has a more traditional faceplate and a stronger 144 CFM blower; the Matrix Insert has a similar contemporary look to the Destination but with the Osburn brand finish and lower-emission tuning. Choose by the look and bundling you prefer.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMedium-large firebox, medium-long burn time.\u003c\/strong\u003e A 2.4 ft³ non-cat insert gives you meaningful primary-heat capability across 1,200–1,800 sq ft, with realistic 6–7 hour burn cycles. If you want true 10+ hour overnight burns, step up to a 3.0+ ft³ insert or to a catalytic stove with a real low-output mode.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 2,100 sq ft figure is aspirational.\u003c\/strong\u003e The most consistent owner regret across medium-large inserts is buying for the high end of the manufacturer's heating range. If you need to reliably heat more than ~1,800 sq ft as primary winter heat in a cold climate or older home, step up a firebox size — the Destination 2.7 gives meaningfully more usable heat for the same operational effort.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe blower is essential, not optional.\u003c\/strong\u003e Unlike a freestanding stove where the blower meaningfully improves heat distribution, on an insert the blower is what gets the heat into the room at all. Most of the firebox sits inside the masonry cavity, which absorbs radiant heat. The insert will run safely without the blower (useful in a power outage), but day-to-day heat into the room depends on the blower being on and working.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2.3 g\/hr emissions is mid-pack for the category.\u003c\/strong\u003e The Destination 2.3 is well within the EPA 2020 cordwood limit (2.5 g\/hr) but is not class-leading on emissions. Buyers who specifically want lower emissions for an EPA non-attainment county should compare the Osburn Matrix Insert (same platform, 1.54 g\/hr tuning) or the Destination 2.7 (1.2 g\/hr, larger firebox).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExisting fireplace dimensions are non-negotiable.\u003c\/strong\u003e The masonry opening must meet the manual's minimum dimensions (23 3\/4\" H × 28 7\/8\" W × 19 5\/8\" D). Backing plates can cover a larger opening, but they cannot compensate for an undersized one. The projection kit can extend the insert forward by 2 or 4 inches if depth is short, but not enough to fit a substantially shallow fireplace. Measure before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWood quality is not negotiable.\u003c\/strong\u003e The most common \"the insert doesn't heat\" complaint comes from owners running marginally seasoned wood. Secondary combustion works best with dry, properly seasoned fuel, ideally around 15–20% moisture. A pin-type moisture meter is the single best accessory for this insert.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContemporary, not traditional.\u003c\/strong\u003e The cast-iron flush-mount surround is intentionally clean and modern. Buyers wanting heavy decorative cast iron, louvered faceplates, or visible-grille traditional styling should look at the Solution 2.3-I (more traditional faceplate) or premium-tier alternatives.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eOperating reality\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cp\u003e\u003cstrong\u003eFirst burns.\u003c\/strong\u003e The first few fires cure the high-temperature paint and condition the internal components. Burn two or three small fires first, then build bigger, hotter fires until the paint smell is gone. The smell can be strong; ventilate the room well and avoid prolonged exposure during cure-in.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLighting.\u003c\/strong\u003e The manual describes three methods: conventional (newspaper, kindling, larger pieces from bottom up), top-down (full firewood on bottom, kindling and newspaper on top, burns top down for 2+ hours), or two-parallel-logs (two split logs with newspaper between them, kindling across, log-cabin style). Top-down is the cleanest-burning method for cold starts. Whichever method you use, open the air control fully, light the paper, leave the door slightly ajar until the kindling is fully engaged, then close and latch the door.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAir control.\u003c\/strong\u003e Single-lever, located underneath the ash shelf. Pull the handle completely (HIGH) to open the air; push completely (LOW) to close it. Full open at light-off; gradually closed only after the load is fully engaged and stable secondary flames are established. The manual specifies closing the primary air control gradually from the time the door closes to fully closed — too fast and the fire smolders.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBlower switch positions.\u003c\/strong\u003e The 90 CFM blower assembly has a three-position switch: (1) MANUAL — runs continuously regardless of insert temperature; (2) OFF — blower stopped; (3) AUTO — blower starts when the insert is hot enough and stops when it cools down. Use AUTO for normal operation; use MANUAL only when you want continuous airflow regardless of temperature. Allow the insert to reach operating temperature before turning the blower to MANUAL from a cold start.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReload cadence.\u003c\/strong\u003e 3–4 hours between reloads in active heating use; up to 7 hours for a final overnight pack with the air shut hard. Rake remaining charcoal toward the front of the firebox before loading — this concentrates the coals near where most of the combustion air enters and helps ignite the new load. Load three logs east-west on the coal bed with 1 inch of air space from the rear firebrick, then two more logs angled slightly on top. Open the air for a minute or two before opening the door, open the door slowly to avoid smoke rollout, load, close the door, and run the air open until the load is fully engaged before reducing gradually. Do not elevate the fire by using a grate.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBurn in cycles, not single-log feeds.\u003c\/strong\u003e The manual is explicit: do not attempt to produce steady heat output by placing a single log on the fire at regular intervals. Always place at least three (preferably more) pieces on the fire at a time so the heat radiated from one piece helps ignite the pieces next to it. Each load should provide several hours of heating.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAsh management.\u003c\/strong\u003e Empty ash every 2–3 days during full-time heating. The best time to remove ash is after an overnight fire when the insert is relatively cool but there is still some chimney draft to draw ash dust into the insert rather than into the room. Always dispose of ash in a tightly covered metal container on a non-combustible surface, well away from combustible materials — ash retains hot embers for days. Never store ashes indoors, in a non-metallic container, or on a wooden deck.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGlass cleaning.\u003c\/strong\u003e Damp newspaper dipped in cold ash, or a dedicated ceramic-glass cleaner. Daily wipe during low-burn weather; weekly during high-burn. Black streaks at the lower edge mean wet wood; black uniformly across the glass means burns are running too cool. Brown stains at the lower corners mean smoky combustion. Do not clean the glass when the insert is hot, and do not strike or slam the glass door shut.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoor and glass gaskets.\u003c\/strong\u003e Per the manual, the door gasket needs replacement when the paper-strip test fails: close the door on a strip of paper and try to pull it out; firm resistance means the gasket is sealing, easy pull means it's time to replace. Test all the way around the door, not just at the latch. The latch mechanism is adjustable via the door pressure plate bolts. Plan on every 3–5 seasons in regular use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAnnual chimney sweep.\u003c\/strong\u003e Per the manual, the chimney liner should be cleaned and inspected at least once each year. Inspect every two months during the heating season until you know your creosote-formation rate; monthly is safer for new burners. If buildup reaches 1\/8 inch, sweep immediately. The baffle lifts out for sweep access. Insert installations make sweeping more involved than freestanding stoves — many owners hire a CSIA-certified sweep rather than doing it themselves.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWood seasoning.\u003c\/strong\u003e Hardwood needs 12–24 months split, stacked off the ground, top-covered, with sun and wind on the sides. Don't trust supplier \"seasoned\" claims — use a pin-type moisture meter, split a piece in half, measure the fresh face. Manual target: 15–20% moisture. Wood above 25% will smolder, soot the glass, line the chimney with creosote, and undercut every published efficiency and emissions number on this page.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBlower maintenance.\u003c\/strong\u003e Keep the blower intake and fins free of dust. The drawer-mounted assembly slides out for service access — vacuum dust accumulation annually. Do not oil the blower unless the blower manual specifically calls for lubrication. Replacement blowers and related service parts are available through Enerzone\/SBI dealers and parts channels if needed years out.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat never to burn.\u003c\/strong\u003e Per the manual and EPA fuel rules: no coal, garbage, yard waste, materials containing rubber or plastic, waste petroleum products, paint or paint thinners, asphalt products, painted or pressure-treated wood, railroad ties, manure or animal remains, plywood, particle board, paper products, asbestos materials, construction or demolition debris, salt-water driftwood, or unseasoned wood. This does not prohibit normal fire starters made from paper, cardboard, sawdust, wax, or similar substances when used only to start a fire. Burning prohibited materials destroys the firebox, voids the warranty, and releases toxic compounds into your home and the chimney. Do not burn manufactured logs made of wax-impregnated sawdust or logs with chemical additives; 100% compressed-sawdust logs can be used but never more than two at a time.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWarranty and service\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cp\u003eThe Enerzone limited lifetime warranty applies to the original retail purchaser only and is non-transferable. The warranty applies to normal residential use only. Proof of purchase (dated bill of sale), model name, and serial number are required for any warranty claim. Online registration is recommended at enerzone-intl.com but not required if a dated invoice is retained.\u003c\/p\u003e\n\u003ch3\u003eCoverage by component\u003c\/h3\u003e\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eComponent\u003c\/span\u003e\u003cspan\u003eParts\u003c\/span\u003e\u003cspan\u003eLabor\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustion chamber welds, cast-iron door frame\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCeramic glass, plating manufacturing defects\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eSurrounds, heat shields, trims, C-Cast baffle, secondary air tubes\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e7 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHandle assembly, glass retainers, air control mechanism\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e3 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eRemovable carbon-steel firebox components\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eBlower, heat sensors, switches, wiring, electronics\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e2 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePaint (peeling), gaskets, insulation, ceramic fiber blankets, and other options\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eReplacement parts under warranty\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e90 d\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 14px;\"\u003eA one-time replacement limit applies to all parts with lifetime coverage. Warranty is void if the unit is used to burn anything other than seasoned cordwood, or if it is not operated according to the owner's manual. Damage caused by misuse, improper installation, lack of maintenance, overfiring, downdrafts, venting problems, or under-estimated heating area is not covered. Improper installation by anyone other than an authorized qualified technician voids the warranty.\u003c\/p\u003e\n\u003cp\u003eWarranty claims are made through your Enerzone dealer and remain subject to SBI\/Enerzone inspection, approval, and the current written warranty. Kaminos is the retailer for this insert and supports buyers through purchase; final warranty approval rests with SBI as the manufacturer.\u003c\/p\u003e\n\u003cp class=\"warranty-note\"\u003eEnerzone may require photos or returned parts to support a claim; repair work covered by warranty requires prior manufacturer approval.\u003c\/p\u003e\n\u003cp class=\"warranty-note\"\u003eCoverage details can change by component and warranty revision; the current Enerzone warranty controls.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCompare with\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eEnerzone Solution 2.3-I Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eSame SBI medium-large insert performance platform — same firebox, same combustion chamber, same 20\" log capacity, same 75,000 BTU\/hr maximum, same warranty schedule, same EPA 2020 certification class. The Solution 2.3-I uses a more traditional faceplate with keystone styling (available in 29\" × 44\" or 32\" × 50\" sizes, plus cuttable options for irregular fireplace openings) and ships with a stronger 144 CFM blower vs the Destination's 90 CFM. Choose the Solution 2.3-I if you want a traditional aesthetic and more aggressive heat distribution; choose the Destination 2.3 for the contemporary flush-mount cast-iron look.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eOsburn Matrix Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eSame SBI medium-large insert platform with similar contemporary cast-iron flush-mount styling, but in the Osburn brand. The Matrix Insert has a meaningfully lower published emissions rate (1.54 g\/hr vs 2.3 g\/hr on the Destination) and a slightly larger 19 5\/8\" × 11 7\/8\" glass surface. Same 90 CFM heat-activated blower, same firebox performance. Choose the Matrix if you want the Osburn brand and class-leading emissions; choose the Destination 2.3 if you prefer the Enerzone brand and pricing.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eEnerzone Destination 2.7 Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eStep up in the Destination line. 80,000 BTU\/hr maximum output, 1.2 g\/hr emissions (substantially lower), eloquent cast-iron faceplate with a distinctive louver and larger glass surface. Choose the Destination 2.7 if you need more heat output, want class-leading emissions, and the larger faceplate works in your space; choose the Destination 2.3 for a more compact contemporary surround at a lower price point.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003ePacific Energy Summit Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003ePremium cross-brand competitor in the medium-large insert class. Sealed-firebox technology, premium build, higher price. The most-mentioned cross-shop on hearth-enthusiast forums for buyers comparing mid-to-large wood inserts. Higher price; longer real-world burn potential.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp class=\"pull\"\u003eThe Destination 2.3 is the contemporary cast-iron wood insert in the Enerzone line. Built to turn an existing masonry fireplace into a serious heat source, with 20-inch logs, an 8-hour burn cycle, and the 90 CFM heat-activated blower included as standard. Measure the opening, install it right, burn good wood, and it carries you through winter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Enerzone","offers":[{"title":"Default Title","offer_id":50192706175169,"sku":"EB00044","price":3949.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/Enerzone_Destination_2.3_Wood_Insert_Kaminos.webp?v=1778193129"},{"product_id":"enerzone-destination-2-7-wood-insert","title":"Enerzone Destination 2.7 Wood Insert","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #231F20; line-height: 1.55; width: 100%; max-width: 100%; box-sizing: border-box; margin: 0; padding: 0; font-size: 16px; overflow-wrap: break-word; word-wrap: break-word; word-break: normal;\"\u003e\n\n\u003cstyle\u003e\n  .km-desc, .km-desc * { box-sizing: border-box; max-width: 100%; }\n  .km-desc { width: 100%; }\n  .km-desc p { margin: 0 0 14px; }\n  .km-desc h3 { font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px; font-weight: 600; color: #9B774D; margin: 22px 0 10px; }\n  .km-desc .spec-list { margin: 12px 0 0; }\n  .km-desc .spec-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .spec-row:first-child { border-top: 1px solid rgba(75,72,75,0.35); padding-top: 14px; }\n  .km-desc .spec-label { font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px; font-weight: 600; color: #4B484B; margin-bottom: 6px; }\n  .km-desc .spec-value { font-weight: 600; font-size: 15px; color: #231F20; margin-bottom: 6px; line-height: 1.35; }\n  .km-desc .spec-meaning { color: #4B484B; font-size: 13px; line-height: 1.55; }\n  @media (min-width: 720px) {\n    .km-desc .spec-row { display: grid; grid-template-columns: 38% 30% 1fr; gap: 16px; align-items: start; padding: 12px 0; }\n    .km-desc .spec-label { margin-bottom: 0; align-self: center; }\n    .km-desc .spec-value { margin-bottom: 0; font-size: 14px; align-self: center; }\n    .km-desc .spec-meaning { font-size: 13px; }\n    .km-desc .spec-row:first-child { padding-top: 12px; }\n  }\n  .km-desc .data-row { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; padding: 12px 0; border-bottom: 1px solid rgba(75,72,75,0.12); align-items: baseline; font-size: 13px; }\n  .km-desc .data-head + .data-row { border-top: 1px solid rgba(75,72,75,0.35); }\n  .km-desc .data-row .data-label { color: #4B484B; line-height: 1.4; }\n  .km-desc .data-row .data-val { font-weight: 600; color: #231F20; text-align: right; min-width: 56px; }\n  .km-desc .data-head { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; padding-bottom: 8px; font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px; font-weight: 600; color: #4B484B; }\n  .km-desc .data-head span:nth-child(2), .km-desc .data-head span:nth-child(3) { text-align: right; min-width: 56px; }\n  .km-desc ul { list-style: none; padding: 0; margin: 10px 0 14px; }\n  .km-desc ul li { padding: 4px 0 4px 18px; position: relative; line-height: 1.55; }\n  .km-desc ul li:before { content: \"—\"; position: absolute; left: 0; color: #9B774D; font-weight: 500; }\n  .km-desc .compare-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .compare-row:last-child { border-bottom: 0; }\n  .km-desc .compare-name { font-weight: 600; color: #231F20; display: inline-block; padding-bottom: 1px; }\n  .km-desc .compare-orient { color: #4B484B; margin-top: 4px; font-size: 13px; line-height: 1.5; }\n  .km-desc .pull { font-style: italic; font-size: clamp(16px, 4.2vw, 22px); line-height: 1.4; color: #231F20; border-left: 2px solid #9B774D; padding: 0 0 0 16px; margin: 32px 0 16px; }\n  .km-desc .lede { font-size: clamp(16px, 4vw, 22px); line-height: 1.4; letter-spacing: -0.2px; font-weight: 400; color: #231F20; margin: 0 0 24px; }\n  .km-desc .warranty-note { font-size: 12px; color: #4B484B; font-style: italic; margin-top: 14px; }\n  .km-desc details { border-top: 1px solid rgba(75,72,75,0.18); margin: 0; padding: 0; }\n  .km-desc details:last-of-type { border-bottom: 1px solid rgba(75,72,75,0.18); }\n  .km-desc details \u003e summary { list-style: none; cursor: pointer; padding: 18px 32px 18px 0; position: relative; font-size: clamp(16px, 4.2vw, 20px); line-height: 1.3; font-weight: 500; color: #231F20; letter-spacing: -0.2px; }\n  .km-desc details \u003e summary::-webkit-details-marker { display: none; }\n  .km-desc details \u003e summary::after { content: \"+\"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-size: 22px; font-weight: 300; color: #9B774D; line-height: 1; }\n  .km-desc details[open] \u003e summary::after { content: \"−\"; }\n  .km-desc details \u003e summary:focus-visible { outline: 2px solid #9B774D; outline-offset: 4px; }\n  .km-desc details \u003e .acc-body { padding: 0 0 28px 0; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"km-desc\"\u003e\n\n\u003cp class=\"lede\"\u003eA 2.5 ft³ non-catalytic large wood insert designed for installation in an existing masonry fireplace — the largest insert in the Enerzone Destination line. EPA 2020 cordwood certified at 1.2 g\/hr published average particulate emissions (well below the 2.5 g\/hr cordwood limit), with a 20-inch maximum east-west log capacity, up to 2,200 sq ft of heating area, an 8-hour maximum burn time, 80,000 BTU\/hr maximum output, and a powerful 176 CFM heat-activated blower included as standard.\u003c\/p\u003e\n\n\u003cdetails open\u003e\n\u003csummary\u003eWho this is for\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003ch3\u003eRight buyer\u003c\/h3\u003e\n\u003cp\u003eOwners of a working masonry fireplace with a large opening who want to convert an inefficient open hearth into a serious primary heat source — up to 2,200 sq ft of zone heating capability with a 2.5 ft³ firebox, 20-inch log capacity, and an 8-hour maximum burn cycle. Reasonable insulation, access to seasoned hardwood at 15–20% moisture, and an existing masonry fireplace that meets the minimum opening dimensions (27 1\/8\" H × 31 3\/4\" W × 22 1\/8\" D per manual) are the basic requirements.\u003c\/p\u003e\n\u003cp\u003eBuyers heating 1,500–2,000 sq ft as primary winter heat in moderate climates, or 1,200–1,500 sq ft in cold climates and older homes. The Destination 2.7 is the largest insert in the Enerzone Destination line — sized for whole-house zone heating from a main living area, not single-room supplemental heat.\u003c\/p\u003e\n\u003cp\u003eBuyers prioritizing low emissions. At 1.2 g\/hr published average particulate emissions, the Destination 2.7 is well below the EPA 2020 cordwood limit (2.5 g\/hr) and notably lower than the Enerzone Destination 2.3 or Solution 2.3-I. For EPA non-attainment counties, jurisdictions with stricter local emission rules, or buyers who simply want the cleanest-burning insert available in this size class, this is the right tool.\u003c\/p\u003e\n\u003cp\u003eBuyers who want an aesthetic statement. The Destination 2.7 ships with a cast-iron faceplate adorned with a distinctive louver and a large 24 1\/4\" × 12 5\/8\" ceramic glass surface — wide, horizontal, picture-frame proportions. The look is bolder and more contemporary than smaller inserts in the Destination line.\u003c\/p\u003e\n\u003cp\u003eBuyers who want the most powerful blower in the lineup. The 176 CFM heat-activated double-cage blower is meaningfully stronger than the 90 CFM blowers on smaller Destination-line inserts. For an insert — where most of the firebox sits inside the masonry cavity — blower CFM is what gets the heat into the room.\u003c\/p\u003e\n\n\u003ch3\u003eWrong buyer\u003c\/h3\u003e\n\u003cp\u003eNot for buyers without an existing code-compliant masonry fireplace with a large opening. Wood inserts must be installed inside a lined masonry fireplace with a continuous stainless-steel chimney liner running the full height. This insert requires a substantial opening (27 1\/8\" H × 31 3\/4\" W × 22 1\/8\" D per manual) — many older or smaller fireplaces will not accept it. Not approved for factory-built (prefab) metal fireplaces, mobile homes, alcoves, or freestanding installation.\u003c\/p\u003e\n\u003cp\u003eNot for buyers heating under 1,200 sq ft. The 2.5 ft³ firebox will overheat a smaller space and force you to run it inefficiently. For smaller spaces, step down to the Destination 2.3 (2,100 sq ft) or Destination 1.9 (1,200 sq ft).\u003c\/p\u003e\n\u003cp\u003eNot for buyers focused on efficiency numbers. At 64% HHV average efficiency, the Destination 2.7 is lower than smaller inserts in the line. The 2.7 trades efficiency for emissions performance and BTU capacity — its standout numbers are the published emissions rate and 80,000 BTU\/hr output, not efficiency. Buyers who want high published efficiency should look at the Destination 1.9 (75% HHV) or smaller catalytic inserts.\u003c\/p\u003e\n\u003cp\u003eNot for buyers expecting 10+ hour overnight burns. The 8-hour manufacturer maximum is achievable on a packed load of dense hardwood with the air shut down hard, but useful heat from a packed load is realistically 6–7 hours. For longer burns, consider a catalytic insert in this size class.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eAt a glance\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cdiv class=\"spec-list\"\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion technology\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNon-catalytic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eSecondary-air tubes reignite smoke gases. No catalyst to replace; one air-control lever; simpler operation than a cat stove but shorter low-and-slow burn times.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eInstallation type\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMasonry insert\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInstalls inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. Not approved for factory-built fireplaces, mobile homes, or freestanding installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFirebox volume\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e2.5 ft³ overall \/ 1.94 ft³ EPA\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Large firebox sized for primary zone heating across 750–2,200 sq ft. The overall figure includes a buffer zone above the EPA loading line; the 1.94 ft³ figure is the usable loading volume used during EPA emissions certification.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum heat output\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e80,000 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePeak output on dry cordwood, transient. Sustained output across a burn cycle is substantially lower.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eTested output range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e12,700–60,700 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer CSA B415.1-10 stack-loss method. A wide tested range — the Destination 2.7 delivers usable heat from very low burn rates suitable for shoulder-season heating up through strong sustained output for cold-snap heating.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eHeating range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e750–2,200 sq ft\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer's stated range. Real-world comfort sizing for primary heat is roughly 1,500–2,000 sq ft in moderate climates and lower in cold climates or older homes — depends on insulation, layout, climate, ceiling height, fuel quality, and installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eAverage efficiency\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e64% HHV \/ 68% LHV\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003e70% optimum overall efficiency at low burn rate; 68% optimum heat transfer efficiency. HHV is the federal standard. Lower than smaller inserts in the Destination line — the 2.7 trades efficiency for class-leading emissions performance and higher BTU capacity. Government incentives may apply by jurisdiction and installation date.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eParticulate emissions\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e1.2 g\/hr (published average)\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manufacturer's published spec table. EPA 2020 limits are 2.0 g\/hr crib-wood or 2.5 g\/hr cordwood. The Destination 2.7's published rate is class-leading among Enerzone wood inserts and well below the federal limit — a meaningful advantage in EPA non-attainment counties and jurisdictions with stricter local rules.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum burn time\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUp to 8 hours\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer maximum at the lowest air setting. Useful heat through a burn cycle is realistically 6–7 hours.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eRecommended log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e16 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Most firewood suppliers cut to this length.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e20 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003e4-inch margin over the recommended length — meaningful for buyers with access to longer-cut firewood. Logs load across the width of the firebox, sides visible from the door.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eConstruction\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eCarbon steel, cast-iron faceplate\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eWelded carbon-steel firebox with a cast-iron faceplate adorned with a distinctive louver, and an arched cast-iron glazed door. Lifetime warranty on the combustion-chamber welds.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eGlass door\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e24 1\/4\" × 12 5\/8\", ceramic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eLarge wide-format ceramic glass with air-wash, 5\/32\" (4 mm) thick, tested to 1,400 °F. The horizontal picture-frame proportions make the glass the visual focus of the unit. Replacement glass must be a SCHOTT ceramic with the same specification — tempered or ordinary glass will not withstand the operating temperatures.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBlower\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eIncluded, up to 176 CFM\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Powerful double-cage heat-activated blower with rheostat speed control and thermodisc auto-on. The most powerful blower in the Destination line — meaningfully stronger than the 90 CFM blowers on smaller inserts. Three-position switch: AUTO (starts when insert is hot, stops when cool), MANUAL (runs continuously), or OFF.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBaffle\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eC-Cast\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eRigid aluminosilicate fiber baffle rated above 2,000 °F.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFlue connection\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e6 in (insert liner)\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eTop of the unit. Requires a continuous stainless-steel chimney liner running the full height of the masonry chimney. Liner must conform to UL 1777 (USA), CAN\/ULC-S635, or CAN\/ULC-S640 (Canada). Per manual, minimum chimney height 15 feet. Sold separately.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion chamber\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e21 3\/4\" W × 12 7\/8\" D × 12 3\/8\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInside firebox dimensions per manufacturer spec. Designed for east-west loading across the width of the firebox. North-south loading is not practical at this depth.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDoor opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e25 1\/2\" W × 12 1\/2\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eWide horizontal loading door opening — significantly wider than smaller inserts in the line. Accommodates 20-inch logs loaded east-west with room to spare.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMinimum masonry opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e27 1\/8\" H × 31 3\/4\" W × 22 1\/8\" D\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Substantial opening required — measure carefully before ordering. See \"Where it can go\" for projection kit and cuttable faceplate options.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCountry of origin\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMade in Canada\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufactured by Stove Builder International (SBI) in Saint-Augustin-de-Desmaures, Quebec.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhere it can go\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cp\u003eThe Destination 2.7 is approved only for installation inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. It is not approved for installation in factory-built (prefab) metal fireplaces, in mobile or manufactured homes, in alcoves, or as a freestanding unit. The masonry fireplace and chimney must be inspected before installation for cracks, loose mortar, creosote, blockage, or other signs of deterioration.\u003c\/p\u003e\n\n\u003ch3\u003eMinimum masonry opening\u003c\/h3\u003e\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eDimension\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHeight\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27 1\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eWidth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e31 3\/4\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eDepth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e22 1\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 14px;\"\u003eIf a fresh-air intake is being installed, add at least 4 inches to the width. Plan for a small installation margin above the insert to seat the liner adapter — an opening exactly at the minimum will be a tight install. Measure carefully before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eProjection kit (optional)\u003c\/h3\u003e\n\u003cp\u003eIf the fireplace depth is less than the minimum 22 1\/8\", the optional projection kit (SBI AC01263) extends the insert 2 or 4 inches forward of the fireplace facing. With the kit installed, the depth requirement reduces to 20 1\/8\" (2\" projection) or 18 1\/8\" (4\" projection). Ordered as a separate accessory.\u003c\/p\u003e\n\n\u003ch3\u003eFaceplate options\u003c\/h3\u003e\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eConfiguration\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eSize\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eStandard faceplate (included)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e30 1\/8\" × 43 3\/4\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCuttable faceplate (optional, SBI AC01277)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e34\" × 50\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 14px;\"\u003eThe standard cast-iron faceplate covers most masonry openings. For larger openings, the optional 18-gauge cuttable faceplate extends the cover area — the edges can be trimmed to contour an arched fireplace or to minimize visible flashing. Selected at order if needed.\u003c\/p\u003e\n\n\u003ch3\u003eClearances to combustibles\u003c\/h3\u003e\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eSurface\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eAdjacent combustible side wall\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e19\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eFaceplate to combustible side or top surround\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e9 1\/2\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible mantel shelf, from top of faceplate\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e12\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible top surround projection\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e12\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePlatform \/ floor protection to ceiling\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e84\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"data-head\" style=\"margin-top: 18px;\"\u003e\n\u003cspan\u003eSurface\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMax thickness\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible side surround\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible mantel shelf projection\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e12\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 14px;\"\u003eReduced clearances are not available by means of heat shields on this insert — the figures above are the binding minimums. Note that the mantel shelf clearance is measured from the top of the faceplate, with or without the projection kit. The 19-inch side-wall clearance is larger than smaller inserts in the line — this is a larger appliance generating more heat output, and the clearance reflects that.\u003c\/p\u003e\n\n\u003ch3\u003eFloor protection\u003c\/h3\u003e\n\u003cp\u003eFloor protection requirements depend on whether the projection kit is installed and whether the existing masonry hearth is raised above the surrounding combustible floor. Without the projection kit, if the hearth is raised at least 2 inches, a non-combustible floor protector with no R-value is required and must extend at least 16 inches in front of the unit in the USA, 18 inches in Canada; if the hearth is raised less than 2 inches, a non-combustible floor protector with an R-value of at least 1.00 is required and must extend at least 20 inches in front of the unit. With the projection kit installed, the thresholds change to 4 inches raised (no R-value required) or less than 4 inches raised (R-value of 1.00, extending at least 22 inches forward). The manual includes a thermal-resistance lookup table for common floor protection materials (brick, cement board, ceramic tile, marble) to calculate the required R-value combination.\u003c\/p\u003e\n\n\u003ch3\u003eChimney and liner\u003c\/h3\u003e\n\u003cp\u003eThe Destination 2.7 requires a continuous 6-inch stainless-steel chimney liner extending from the insert flue collar to the top of the chimney. The liner must conform to ULC S635, CAN\/ULC-S640 (Canada) or UL 1777 (USA) and be rated for solid fuel. The minimum liner height is 15 feet, subject to installer verification, certification label, draft conditions, and local code. The chimney must extend at least 3 feet above the highest point of contact with the roof and at least 2 feet above any roof line or obstacle within 10 feet horizontally.\u003c\/p\u003e\n\u003cp\u003eReduction of the liner diameter below 6 inches is not permitted in the USA — 6 inches is the minimum. In Canada only, a 5-inch liner is permitted if the masonry chimney exceeds 20 feet total height and the application is verified and authorized by a qualified installer. The insert is not approved for a \"positive flue connection\" to clay tile — a continuous stainless liner is required.\u003c\/p\u003e\n\u003cp\u003eIf the existing fireplace's throat damper is to remain, it must be locked open to clear the liner; otherwise the damper plate must be removed. If removed, the notice plate (27009) supplied in the owner's manual kit must be installed in a visible place inside the masonry hearth. A sheet-metal block-off plate (or, in Canada per CSA B365, mineral wool packing around the liner) is recommended at the throat to reduce cold-air backdraft into the room. An insulated liner (or pre-insulated liner with a wrap) improves draft and reduces creosote, and is required by code in some jurisdictions for clearance reasons.\u003c\/p\u003e\n\n\u003ch3\u003eOutside air\u003c\/h3\u003e\n\u003cp\u003eAn optional fresh-air intake kit is available for code jurisdictions requiring outside combustion air or for tight new-construction homes with mechanical ventilation. The fresh-air intake adapter installs on either the left or right side of the insert (the unused side is covered by a plate supplied in the owner's manual kit). A smoke detector and carbon monoxide detector are required in the room where the insert is installed.\u003c\/p\u003e\n\n\u003ch3\u003eCode compliance\u003c\/h3\u003e\n\u003cp\u003eCode compliance for any specific installation is determined by the local Authority Having Jurisdiction. Manufacturer listings cover what the insert is approved for; the AHJ approves what is permitted at your address. A WETT (Canada), NFI, or CSIA (USA) certified installer is strongly recommended and frequently required by code, permit, or insurance. In Canada the CSA B365 standard applies; in the USA, ANSI NFPA 211 applies. Confirm local requirements before purchasing.\u003c\/p\u003e\n\n\u003ch3\u003eCalifornia Proposition 65\u003c\/h3\u003e\n\u003cp\u003eThis product can expose you to chemicals including carbon monoxide, which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.P65warnings.ca.gov.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat's in the box, what you'll add\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003ch3\u003eShips with the insert\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDestination 2.7 wood insert (EB00058) with welded carbon-steel firebox and arched cast-iron glazed door\u003c\/li\u003e\n\u003cli\u003eCast-iron faceplate assembly with distinctive louver detail, decorative top panel, and grille\u003c\/li\u003e\n\u003cli\u003e176 CFM heat-activated double-cage blower assembly with rheostat speed control and three-position switch (AUTO \/ OFF \/ MANUAL)\u003c\/li\u003e\n\u003cli\u003eC-Cast baffle and stainless-steel secondary-air tube assembly\u003c\/li\u003e\n\u003cli\u003eMoulded refractory panels (floor, sides, back)\u003c\/li\u003e\n\u003cli\u003eCast-iron andiron for fireplace\u003c\/li\u003e\n\u003cli\u003eLiner fixation brackets and hardware\u003c\/li\u003e\n\u003cli\u003eDamper-removal notice plate (27009) for installations where the masonry throat damper is removed\u003c\/li\u003e\n\u003cli\u003eOwner's manual and product documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSold separately\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e6-inch continuous stainless-steel chimney liner kit (UL 1777, CAN\/ULC-S635, or CAN\/ULC-S640) — required for installation, sized to the chimney height\u003c\/li\u003e\n\u003cli\u003eHearth extension or floor protector sized per manual specifications, with R-value of at least 1.00 if hearth is raised below the manual's threshold\u003c\/li\u003e\n\u003cli\u003eOptional cuttable faceplate (SBI AC01277) — see \"Where it can go\" for details\u003c\/li\u003e\n\u003cli\u003eOptional projection kit, 2\" or 4\" (SBI AC01263) — see \"Where it can go\" for details\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch fresh-air intake kit (SBI AC01298) — for code jurisdictions requiring outside combustion air or for tight new-construction homes\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch fresh-air intake register with airtight damper (SBI AC01349) — closable outside-air damper; do not close while the insert is in use\u003c\/li\u003e\n\u003cli\u003eOptional rigid fire screen door (SBI AC01275) — not permitted for open-door use in the United States or in Canadian provinces\/jurisdictions with particulate-emission limits; never leave the insert unattended when used with a fire screen\u003c\/li\u003e\n\u003cli\u003eOptional liner hook-up system (SBI AC02006) — simplifies liner-to-flue-collar connection\u003c\/li\u003e\n\u003cli\u003eOptional offset liner adapter (SBI AC01214) — for installations where the chimney throat geometry requires offset connection; restricts flow somewhat and should only be used when no other option is possible and chimney height is at least 20 feet\u003c\/li\u003e\n\u003cli\u003ePin-type wood moisture meter — not optional in practice\u003c\/li\u003e\n\u003cli\u003eFlue thermometer — strongly recommended for insert installations since stove-top temperature isn't accessible\u003c\/li\u003e\n\u003cli\u003eInstallation by an authorized qualified technician (WETT, NFI, or CSIA certified) — required for warranty coverage and often required by code, permit, or insurance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow it actually performs\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cp\u003eThe 80,000 BTU\/hr maximum is a peak rating, transient, achieved on dry cordwood at high loading density and short reload intervals. The figure that matters for daily life is the sustained output across a full burn cycle, which lands in the 12,700–60,700 BTU\/hr band per the CSA B415.1-10 stack-loss method — a wide range covering shoulder-season heating on the low end and serious cold-snap output on the high end.\u003c\/p\u003e\n\u003cp\u003eA realistic burn cycle from a packed load of well-seasoned hardwood produces a 30–45 minute warm-up, 2–3 hours of strong sustained heat once the firebox and surrounding masonry come up to temperature, then a gradual decline over the next 3–4 hours with a coal bed remaining. Total useful heat from one full pack is realistically 6–7 hours, occasionally approaching the 8-hour manufacturer maximum with dense hardwood, mild weather, and a packed coal bed.\u003c\/p\u003e\n\u003cp\u003eThe masonry around the insert acts as a thermal mass. Once the surrounding brick or stone is up to temperature, it continues radiating heat into the room well after the active fire has died down. This is one of the underappreciated benefits of an insert versus a freestanding stove — the masonry stores and releases heat on its own cycle. The first hour from a cold start is the slowest because that mass has to come up to temperature; once it's hot, response time is faster.\u003c\/p\u003e\n\u003cp\u003eThe 176 CFM heat-activated double-cage blower is what gets the heat into the room. Because most of the insert's firebox sits inside the masonry cavity, the radiant heat that would otherwise reach the room from a freestanding stove is partly absorbed by the surrounding brick. The convection jacket around the firebox captures that heat and the blower pushes it out into the room. The 176 CFM rating is notably stronger than the 90 CFM blowers used on smaller Destination-line inserts — more aggressive heat distribution and more effective at moving heat out of the masonry cavity. The rheostat lets you dial speed down for quieter operation once the room is up to temperature.\u003c\/p\u003e\n\u003cp\u003eWith the switch in AUTO, the blower starts automatically once the insert is hot enough and stops when it cools — set the position and forget about it. With the switch in MANUAL, the blower runs continuously regardless of insert temperature. Allow the insert to reach operating temperature (approximately one hour from a cold start) before turning the blower to MANUAL. Per the manual, turning the blower on too early during start-up pulls heat away from the firebox and slows the build-up to clean combustion.\u003c\/p\u003e\n\u003cp\u003eAir-wash glass stays largely clear during proper hot burns at moderate-to-high air settings. At low burn rates with marginally seasoned wood, the glass will tar. This is universal to non-catalytic inserts, not specific to Enerzone.\u003c\/p\u003e\n\u003cp\u003ePower-failure operation: the insert continues to burn safely without electricity — only the blower stops. Heat distribution drops noticeably without the blower because the masonry cavity absorbs most of the firebox radiation. Plan accordingly if you're buying this insert specifically as a power-outage heat source.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eTrade-offs to know\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cp\u003e\u003cstrong\u003eLarge appliance, large masonry opening required.\u003c\/strong\u003e The 2.7's minimum opening of 27 1\/8\" H × 31 3\/4\" W × 22 1\/8\" D is substantial. Many older or smaller fireplaces will not accept it. Measure carefully before ordering — this is the most common reason a Destination 2.7 purchase falls apart at the installation stage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEfficiency is lower than smaller siblings.\u003c\/strong\u003e 64% HHV is honestly lower than the 72% HHV on the Destination 2.3 and 75% HHV on the Destination 1.9. The 2.7's standout numbers are the class-leading published emissions rate and the 80,000 BTU\/hr output, not efficiency. Buyers comparing efficiency numbers across the line should know this going in — it's a real trade-off.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLow published emissions is the headline.\u003c\/strong\u003e If emissions matter for your jurisdiction (EPA non-attainment counties, stricter local rules, future regulatory changes), the Destination 2.7's 1.2 g\/hr published average particulate emissions are materially better than the Destination 2.3 and the Solution 2.3-I. For most buyers this is the single best reason to pick the 2.7.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePowerful blower, audible blower.\u003c\/strong\u003e The 176 CFM blower delivers strong heat distribution but is more audible than the smaller blowers on other inserts in the line. The rheostat lets you dial speed down for quieter operation when the room is up to temperature; high speed is most useful during the active heat-output phase of the burn cycle.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e8-hour maximum burn is large-class, not long-burn class.\u003c\/strong\u003e A 2.5 ft³ non-cat insert gives you meaningful primary-heat capability across 1,500–2,000 sq ft, with realistic 6–7 hour burn cycles. If you want true 10+ hour overnight burns, consider a catalytic insert in this size class with a real low-output mode.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe 2,200 sq ft figure is aspirational.\u003c\/strong\u003e The most consistent owner regret across large inserts is buying for the high end of the manufacturer's heating range. If you need to reliably heat more than ~2,000 sq ft as primary winter heat in a cold climate or older home, this insert is at its limit — supplemental heat in the coldest part of winter may still be needed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe blower is essential, not optional.\u003c\/strong\u003e Unlike a freestanding stove where the blower meaningfully improves heat distribution, on an insert the blower is what gets the heat into the room at all. Most of the firebox sits inside the masonry cavity, which absorbs radiant heat. The insert will run safely without the blower (useful in a power outage), but day-to-day heat into the room depends on the blower being on and working.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWider door, more attention to door operation.\u003c\/strong\u003e The 25 1\/2\"-wide door opening accommodates 20-inch logs easily, but a wider door means more thermal cycling on the door frame and gasket. Watch the door gasket through the first couple of seasons; replace per the paper-strip test when sealing weakens.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWood quality is not negotiable.\u003c\/strong\u003e The most common \"the insert doesn't heat\" complaint comes from owners running marginally seasoned wood. Secondary combustion works best with dry, properly seasoned fuel, ideally around 15–20% moisture. A pin-type moisture meter is the single best accessory for this insert.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eContemporary cast-iron aesthetic.\u003c\/strong\u003e The louvered cast-iron faceplate and wide horizontal glass make a deliberate visual statement. Buyers wanting traditional decorative cast iron or louvered traditional styling should look at the Solution 2.3-I instead.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eOperating reality\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cp\u003e\u003cstrong\u003eFirst burns.\u003c\/strong\u003e The first few fires cure the high-temperature paint and condition the internal components. Burn two or three small fires first, then build bigger, hotter fires until the paint smell is gone. The smell can be strong; ventilate the room well and avoid prolonged exposure during cure-in.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLighting.\u003c\/strong\u003e Per the manual, the recommended method is the EPA loading procedure for cleanest combustion: place two small pieces (about 3\" × 3\") in the bottom in a reverse-V shape, two medium-size pieces (about 4\" × 4\") in an east-west orientation in the back over the reverse V, and a big piece (about 5\" × 5\") in the front over the reverse V. Leave air space between pieces. Light, leave the door open for three minutes or until the fire is fully established, then close with the air control fully open. The manual also describes alternative methods (conventional bottom-up, top-down, two-parallel-logs).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAir control.\u003c\/strong\u003e Single-lever, located below the ash shelf on the right side. Push the handle completely to the left (HIGH) to open the air; push completely to the right (LOW) to close it. Full open at light-off; gradually closed only after the load is fully engaged and stable secondary flames are established. Closing too fast and the fire smolders.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBlower switch positions.\u003c\/strong\u003e The 176 CFM blower assembly has a three-position switch: (1) AUTO — blower starts when the insert is hot enough and stops when it cools down (thermodisc-controlled); (2) OFF — blower stopped, prevented from starting automatically; (3) MANUAL — runs continuously regardless of insert temperature. Use AUTO for normal operation; use MANUAL only when you want continuous airflow regardless of temperature. Allow the insert to reach operating temperature (approximately one hour from cold start) before turning the blower to MANUAL.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReload cadence.\u003c\/strong\u003e 3–4 hours between reloads in active heating use; up to 7 hours for a final overnight pack with the air shut hard. Rake remaining charcoal toward the front of the firebox before loading — this concentrates the coals near where most of the combustion air enters and helps ignite the new load. Place the new load on and at the back of the embers. Open the air for a minute or two before opening the door, open the door slowly to avoid smoke rollout, load, close the door, and run the air open until the load is fully engaged before reducing gradually. Do not elevate the fire by using a grate.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLoading area limits.\u003c\/strong\u003e Per the manual, do not place logs in the area marked X on the EPA loading diagram (the space between the glass and the cast-iron andiron). Loading into this area disrupts the air-wash, makes ignition slow, and increases the chance of logs falling against the glass.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBurn in cycles, not single-log feeds.\u003c\/strong\u003e The manual is explicit: do not attempt to produce steady heat output by placing a single log on the fire at regular intervals. Always place at least three (preferably more) pieces on the fire at a time so the heat radiated from one piece helps ignite the pieces next to it. Each load should provide several hours of heating.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCarbon monoxide watch.\u003c\/strong\u003e Per the manual, if the firebox no longer shows flame but still contains unburned logs, check outside for smoke from the chimney. Smoke without flame means the fire is air-starved and CO levels are rising. Open the door slightly, move the logs with a poker, create a passage for air by making a trench in the ember bed, and add small kindling-size pieces to restart combustion.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAsh management.\u003c\/strong\u003e Empty ash every 2–3 days during full-time heating. The best time to remove ash is in the morning after an overnight fire when the insert is relatively cool but there is still some chimney draft to draw ash dust into the insert rather than into the room. Always dispose of ash in a tightly covered metal container on a non-combustible surface, well away from combustible materials — ash retains hot embers for days and releases carbon monoxide. Never store ashes indoors, in a non-metallic container, or on a wooden deck.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGlass cleaning.\u003c\/strong\u003e Damp newspaper dipped in cold ash, or a dedicated ceramic-glass cleaner. Daily wipe during low-burn weather; weekly during high-burn. Black streaks at the lower edge mean wet wood; black uniformly across the glass means burns are running too cool. Brown stains at the lower corners mean smoky combustion. Do not clean the glass when the insert is hot, and do not strike or slam the glass door shut.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoor and glass gaskets.\u003c\/strong\u003e Per the manual, the door gasket needs replacement when the paper-strip test fails: close the door on a strip of paper and try to pull it out; firm resistance means the gasket is sealing, easy pull means it's time to replace. Test all the way around the door. The latch mechanism is adjustable — remove the split pin with pliers and turn the handle one counterclockwise turn to increase pressure. Plan on every 3–5 seasons in regular use. At the end of each heating season the manual recommends adding high-temperature graphite paste on the threads of the door handle to protect from rust and dust accumulation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAnnual chimney sweep.\u003c\/strong\u003e Per the manual, the chimney liner should be cleaned and inspected at least once each year. Inspect every two months during the heating season until you know your creosote-formation rate; monthly is safer for new burners. If buildup reaches 1\/8 inch, sweep immediately. The baffle lifts out for sweep access. Insert installations make sweeping more involved than freestanding stoves — many owners hire a CSIA-certified sweep rather than doing it themselves.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWood seasoning.\u003c\/strong\u003e Hardwood needs 12–24 months split, stacked off the ground, top-covered, with sun and wind on the sides. Don't trust supplier \"seasoned\" claims — use a pin-type moisture meter, split a piece in half, measure the fresh face. Manual target: 15–20% moisture. Wood above 25% will smolder, soot the glass, line the chimney with creosote, and undercut every published efficiency and emissions number on this page.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBlower maintenance.\u003c\/strong\u003e Keep the blower intake and fins free of dust. Vacuum dust accumulation annually. Do not oil the blower unless the blower manual specifically calls for lubrication. Replacement blowers and related service parts are available through Enerzone\/SBI dealers and parts channels if needed years out.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRefractory panels and baffle.\u003c\/strong\u003e The intense heat of the fire can cause slight cracks in the refractory panels — minor cracks do not reduce effectiveness. Inspect periodically and replace any wider cracks. The baffle and secondary tubes can be removed for sweep access and inspection. Operation with a cracked or missing baffle may cause unsafe temperatures and voids the warranty.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eChimney fire response.\u003c\/strong\u003e If a chimney fire occurs: close the insert door and the air-intake control, alert occupants, contact the fire department if assistance is needed, use a dry chemical fire extinguisher or baking soda or sand to control the fire (never water — it causes a dangerous steam explosion), and do not use the appliance again until the insert and chimney have been inspected by a qualified chimney sweep or fire-department inspector.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat never to burn.\u003c\/strong\u003e Per the manual and EPA fuel rules: no garbage, yard waste, materials containing rubber or plastic, waste petroleum products, paint or paint thinners, asphalt products, painted or pressure-treated wood, railroad ties, manure or animal remains, plywood, particle board, paper products, asbestos materials, construction or demolition debris, salt-water driftwood, or unseasoned wood. This does not prohibit normal fire starters made from paper, cardboard, sawdust, wax, or similar substances when used only to start a fire. Burning prohibited materials destroys the firebox, voids the warranty, and releases toxic compounds into your home and the chimney. Do not burn compressed logs made of wax-impregnated sawdust or logs with chemical additives; 100% compressed-sawdust logs can be used with caution.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWarranty and service\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cp\u003eThe Enerzone limited lifetime warranty applies to the original retail purchaser only and is non-transferable. The warranty applies to normal residential use only. Proof of purchase (dated bill of sale), model name, and serial number are required for any warranty claim. Online registration is recommended at enerzone-intl.com but not required if a dated invoice is retained.\u003c\/p\u003e\n\n\u003ch3\u003eCoverage by component\u003c\/h3\u003e\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eComponent\u003c\/span\u003e\u003cspan\u003eParts\u003c\/span\u003e\u003cspan\u003eLabor\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustion chamber welds, cast-iron door frame\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCeramic glass, plating manufacturing defects, convector air-mate\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eSurrounds, heat shields, trims, C-Cast baffle, secondary air tubes\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e7 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHandle assembly, glass retainers, air control mechanism\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e3 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eRemovable carbon-steel firebox components\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eBlower, heat sensors, switches, rheostat, wiring, electronics\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e2 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePaint (peeling), gaskets, insulation, ceramic fiber blankets, and other options\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eReplacement parts under warranty\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e90 d\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eA one-time replacement limit applies to all parts with lifetime coverage. Warranty is void if the unit is used to burn anything other than seasoned cordwood, or if it is not operated according to the owner's manual. Damage caused by misuse, improper installation, lack of maintenance, overfiring, downdrafts, venting problems, or under-estimated heating area is not covered. Improper installation by anyone other than an authorized qualified technician voids the warranty.\u003c\/p\u003e\n\u003cp\u003eWarranty claims are made through your Enerzone dealer and remain subject to SBI\/Enerzone inspection, approval, and the current written warranty. Kaminos is the retailer for this insert and supports buyers through purchase; final warranty approval rests with SBI as the manufacturer.\u003c\/p\u003e\n\u003cp class=\"warranty-note\"\u003eEnerzone may require photos or returned parts to support a claim; repair work covered by warranty requires prior manufacturer approval.\u003c\/p\u003e\n\u003cp class=\"warranty-note\"\u003eCoverage details can change by component and warranty revision; the current Enerzone warranty controls.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCompare with\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eEnerzone Destination 2.3 Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eStep-down sibling in the Destination line. 2.4 ft³ firebox, 75,000 BTU\/hr maximum, 500–2,100 sq ft heating range, 20-inch log capacity, 8-hour maximum burn. Higher published efficiency (72% HHV vs 64% on the 2.7) but higher published emissions and a 90 CFM blower (vs 176 CFM on the 2.7). Smaller minimum masonry opening (23 3\/4\" H × 28 7\/8\" W × 19 5\/8\" D vs 27 1\/8\" × 31 3\/4\" × 22 1\/8\" on the 2.7). Choose the 2.3 for smaller masonry openings, higher efficiency, and lower noise; choose the 2.7 for larger spaces, lower published emissions, and more powerful heat distribution.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eEnerzone Solution 2.3-I Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eCross-line option in the Enerzone Solution insert line. Same 2.4 ft³ firebox platform as the Destination 2.3, with a more traditional faceplate (Regular 29\" × 44\" or Large 32\" × 50\") and a 144 CFM blower. Smaller minimum masonry opening than the 2.7, traditional aesthetic rather than contemporary. Choose the Solution 2.3-I if you want a traditional look in a medium-large insert; choose the Destination 2.7 if you have a larger opening and want lower published emissions in a contemporary aesthetic.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cp class=\"pull\"\u003eThe Destination 2.7 is the largest wood insert in the Enerzone Destination line. Built to turn a large masonry fireplace into a serious primary heat source, with class-leading published particulate emissions, 20-inch logs, and the most powerful 176 CFM heat-activated blower in the lineup. Measure the opening, install it right, burn good wood, and it carries you through winter.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Enerzone","offers":[{"title":"Default Title","offer_id":50195825557697,"sku":"EB00058","price":4729.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/Enerzone_Destination_2.7_Wood_Insert_Life_Style_Kaminos.webp?v=1778246043"},{"product_id":"enerzone-solution-1-7-i-wood-insert","title":"Enerzone Solution 1.7-i Wood Insert","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #231F20; line-height: 1.55; width: 100%; max-width: 100%; box-sizing: border-box; margin: 0; padding: 0; font-size: 16px; overflow-wrap: break-word; word-wrap: break-word; word-break: normal;\"\u003e\n\n\u003cstyle\u003e\n  .km-desc, .km-desc * { box-sizing: border-box; max-width: 100%; }\n  .km-desc { width: 100%; }\n  .km-desc p { margin: 0 0 14px; }\n  .km-desc h3 { font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px; font-weight: 600; color: #9B774D; margin: 22px 0 10px; }\n  .km-desc .spec-list { margin: 12px 0 0; }\n  .km-desc .spec-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .spec-row:first-child { border-top: 1px solid rgba(75,72,75,0.35); padding-top: 14px; }\n  .km-desc .spec-label { font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px; font-weight: 600; color: #4B484B; margin-bottom: 6px; }\n  .km-desc .spec-value { font-weight: 600; font-size: 15px; color: #231F20; margin-bottom: 6px; line-height: 1.35; }\n  .km-desc .spec-meaning { color: #4B484B; font-size: 13px; line-height: 1.55; }\n  @media (min-width: 720px) {\n    .km-desc .spec-row { display: grid; grid-template-columns: 38% 30% 1fr; gap: 16px; align-items: start; padding: 12px 0; }\n    .km-desc .spec-label { margin-bottom: 0; align-self: center; }\n    .km-desc .spec-value { margin-bottom: 0; font-size: 14px; align-self: center; }\n    .km-desc .spec-meaning { font-size: 13px; }\n    .km-desc .spec-row:first-child { padding-top: 12px; }\n  }\n  .km-desc .data-row { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; padding: 12px 0; border-bottom: 1px solid rgba(75,72,75,0.12); align-items: baseline; font-size: 13px; }\n  .km-desc .data-head + .data-row { border-top: 1px solid rgba(75,72,75,0.35); }\n  .km-desc .data-row .data-label { color: #4B484B; line-height: 1.4; }\n  .km-desc .data-row .data-val { font-weight: 600; color: #231F20; text-align: right; min-width: 56px; }\n  .km-desc .data-head { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; padding-bottom: 8px; font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px; font-weight: 600; color: #4B484B; }\n  .km-desc .data-head span:nth-child(2), .km-desc .data-head span:nth-child(3) { text-align: right; min-width: 56px; }\n  .km-desc ul { list-style: none; padding: 0; margin: 10px 0 14px; }\n  .km-desc ul li { padding: 4px 0 4px 18px; position: relative; line-height: 1.55; }\n  .km-desc ul li:before { content: \"—\"; position: absolute; left: 0; color: #9B774D; font-weight: 500; }\n  .km-desc .compare-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .compare-row:last-child { border-bottom: 0; }\n  .km-desc .compare-name { font-weight: 600; color: #231F20; display: inline-block; padding-bottom: 1px; }\n  .km-desc .compare-orient { color: #4B484B; margin-top: 4px; font-size: 13px; line-height: 1.5; }\n  .km-desc .pull { font-style: italic; font-size: clamp(16px, 4.2vw, 22px); line-height: 1.4; color: #231F20; border-left: 2px solid #9B774D; padding: 0 0 0 16px; margin: 32px 0 16px; }\n  .km-desc .lede { font-size: clamp(16px, 4vw, 22px); line-height: 1.4; letter-spacing: -0.2px; font-weight: 400; color: #231F20; margin: 0 0 24px; }\n  .km-desc .warranty-note { font-size: 12px; color: #4B484B; font-style: italic; margin-top: 14px; }\n  .km-desc details { border-top: 1px solid rgba(75,72,75,0.18); margin: 0; padding: 0; }\n  .km-desc details:last-of-type { border-bottom: 1px solid rgba(75,72,75,0.18); }\n  .km-desc details \u003e summary { list-style: none; cursor: pointer; padding: 18px 32px 18px 0; position: relative; font-size: clamp(16px, 4.2vw, 20px); line-height: 1.3; font-weight: 500; color: #231F20; letter-spacing: -0.2px; }\n  .km-desc details \u003e summary::-webkit-details-marker { display: none; }\n  .km-desc details \u003e summary::after { content: \"+\"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-size: 22px; font-weight: 300; color: #9B774D; line-height: 1; }\n  .km-desc details[open] \u003e summary::after { content: \"−\"; }\n  .km-desc details \u003e summary:focus-visible { outline: 2px solid #9B774D; outline-offset: 4px; }\n  .km-desc details \u003e .acc-body { padding: 0 0 28px 0; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"km-desc\"\u003e\n\n\u003cp class=\"lede\"\u003eA 1.86 ft³ non-catalytic medium wood insert with a contemporary arched cast-iron door — the Enerzone-tier insert at the medium-stove platform shared with the Solution 1.7 and Osburn 1700 freestanding stoves. EPA 2020 cordwood certified at 68% HHV efficiency, with an 18-inch maximum east-west log capacity, up to 1,800 sq ft of heating area, a 7-hour maximum burn time, 65,000 BTU\/hr maximum output, and a powerful 144 CFM heat-activated blower included as standard.\u003c\/p\u003e\n\n\u003cdetails open\u003e\n\u003csummary\u003eWho this is for\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003ch3\u003eRight buyer\u003c\/h3\u003e\n\u003cp\u003eOwners of a working masonry fireplace with a medium-sized opening who want to convert an inefficient open hearth into a serious heat source — up to 1,800 sq ft of zone heating capability with a 1.86 ft³ firebox, 18-inch log capacity, and a 7-hour maximum burn cycle. Reasonable insulation, access to seasoned hardwood at 15–20% moisture, and an existing masonry fireplace that meets the minimum opening dimensions (21 1\/2\" H × 27 1\/2\" W × 12 3\/4\" D per manual) are the basic requirements.\u003c\/p\u003e\n\u003cp\u003eBuyers heating 1,200–1,600 sq ft in moderate climates. The Solution 1.7-I is the medium-sized member of the Enerzone insert line — bigger than the compact Destination 1.9 (250–1,200 sq ft) and smaller than the Solution 2.3-I (500–2,100 sq ft). For homes in the medium range, it's the right size firebox to deliver real primary winter heat without overheating the space.\u003c\/p\u003e\n\u003cp\u003eBuyers who want the 144 CFM heat-activated blower as standard. This is a meaningful step up from the 90 CFM blower in the Destination line — more aggressive heat distribution, especially important for inserts where most of the firebox sits inside the masonry cavity and the blower is what gets the heat into the room.\u003c\/p\u003e\n\u003cp\u003eBuyers who want a traditional aesthetic with the arched cast-iron door, silver-grooved styling, and configurable faceplate finish. The standard Regular faceplate (29\" × 44\") fits most medium masonry openings; the optional Large faceplate (32\" × 50\") extends the cover area for larger openings. Choice of Black or Brushed Nickel faceplate trim.\u003c\/p\u003e\n\n\u003ch3\u003eWrong buyer\u003c\/h3\u003e\n\u003cp\u003eNot for buyers without an existing code-compliant masonry fireplace. Wood inserts must be installed inside a lined masonry fireplace with a continuous stainless-steel chimney liner running the full height. This insert is not approved for factory-built (prefab) metal fireplaces, mobile homes, or any installation outside a masonry hearth.\u003c\/p\u003e\n\u003cp\u003eNot for buyers needing to heat more than 1,800 sq ft as primary winter heat. For larger spaces, step up to the Solution 2.3-I (75,000 BTU, 2,100 sq ft, 20\" logs) or larger.\u003c\/p\u003e\n\u003cp\u003eNot for buyers expecting 10+ hour overnight burns. The 7-hour manufacturer maximum is achievable on a packed load of dense hardwood with the air shut down hard, but useful heat from a packed load is realistically 5–6 hours. For longer burns, step up a firebox size or consider catalytic technology.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eAt a glance\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cdiv class=\"spec-list\"\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion technology\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNon-catalytic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eSecondary-air tubes reignite smoke gases. No catalyst to replace; one air-control lever; simpler operation than a cat stove but shorter low-and-slow burn times.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eInstallation type\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMasonry insert\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInstalls inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. Not approved for factory-built fireplaces, mobile homes, or freestanding installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFirebox volume\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e1.86 ft³ overall \/ 1.44 ft³ EPA\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Medium firebox sized for zone heating across 500–1,800 sq ft. The overall figure includes a buffer zone above the EPA loading line; the 1.44 ft³ figure is the usable loading volume used during EPA emissions certification.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum heat output\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e65,000 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePeak output on dry cordwood, transient. Sustained output across a burn cycle is substantially lower.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eTested output range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e9,800–52,200 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer CSA B415.1-10 stack-loss method. A notably wide tested range — the Solution 1.7-I delivers usable heat from very low burn rates (shoulder-season) up to strong cold-snap output.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eHeating range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e500–1,800 sq ft\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer's stated range. Real-world comfort sizing for primary heat is roughly 1,000–1,500 sq ft in moderate climates and lower in cold climates or older homes — depends on insulation, layout, climate, ceiling height, fuel quality, and installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eAverage efficiency\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e68% HHV \/ 73% LHV\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003e76% optimum overall efficiency at low burn rate; 75% optimum heat transfer efficiency. HHV is the federal standard. Government incentives may apply by jurisdiction and installation date.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eParticulate emissions\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e2.4 g\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. EPA 2020 limits are 2.0 g\/hr crib-wood or 2.5 g\/hr cordwood. The insert is listed as compliant with the 2020 cordwood standard.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum burn time\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUp to 7 hours\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer maximum at the lowest air setting. Useful heat through a burn cycle is realistically 5–6 hours.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e18 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eLogs load across the width of the firebox, sides visible from the door. Most firewood suppliers cut to 16 inches as standard, so 18-inch capacity gives modest margin.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eConstruction\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eCarbon steel, cast-iron door\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eWelded carbon-steel firebox with an arched cast-iron glazed door and silver-grooved styling. Lifetime warranty on the combustion-chamber welds.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eGlass\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e15 7\/8\" × 9 7\/8\", ceramic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eArched ceramic glass with air-wash, 5\/32\" (4 mm) thick, tested to 1,400 °F per manual. Replacement must be SCHOTT ceramic with the same specification — tempered or ordinary glass will not withstand the operating temperatures.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBlower\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eIncluded, up to 144 CFM\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Powerful double-cage heat-activated blower with rheostat speed control and thermodisc auto-on. Without the blower, heat distribution from an insert relies almost entirely on radiant heat through the glass — most of the firebox is enclosed in the masonry cavity, so the blower is what gets the heat into the room.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBaffle\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eC-Cast\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eRigid aluminosilicate fiber baffle rated above 2,000 °F.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFlue connection\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e6 in (insert liner)\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eTop of the unit. Requires a continuous stainless-steel chimney liner running the full height of the masonry chimney. Liner must conform to UL 1777 (USA), CAN\/ULC-S635, or CAN\/ULC-S640 (Canada). Per manual, minimum chimney height 15 feet. Sold separately.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion chamber\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e19 5\/8\" W × 13 1\/2\" D × 11 7\/8\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInside firebox dimensions per manual. Designed for east-west loading across the width of the firebox. North-south loading is not practical at this depth.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDoor opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e17 1\/4\" W × 8 3\/4\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eLoading door opening. Accommodates 18-inch logs loaded east-west.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMinimum masonry opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e21 1\/2\" H × 27 1\/2\" W × 12 3\/4\" D\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Confirm fireplace dimensions before ordering. See \"Where it can go\" for faceplate options.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCountry of origin\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMade in Canada\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufactured by Stove Builder International (SBI) in Saint-Augustin-de-Desmaures, Quebec.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhere it can go\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe Solution 1.7-I is approved only for installation inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. It is not approved for installation in factory-built (prefab) metal fireplaces, in mobile or manufactured homes, in alcoves, or as a freestanding unit. The masonry fireplace and chimney must be inspected before installation for cracks, loose mortar, creosote, blockage, or other signs of deterioration.\u003c\/p\u003e\n\n\u003ch3\u003eMinimum masonry opening\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eDimension\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHeight\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e21 1\/2\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eWidth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27 1\/2\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eDepth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e12 3\/4\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eIf a fresh-air intake is being installed, add at least 4 inches to the width. Plan for a small installation margin above the insert to seat the liner adapter — an opening exactly at the minimum will be a tight install. Measure carefully before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eFaceplate options\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eConfiguration\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eSize\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eRegular faceplate (SBI AC01287)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e29\" × 44\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eLarge faceplate (SBI AC01285)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e32\" × 50\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eFaceplate frame and trim are configured together at order. Each size is available in Black or Brushed Nickel trim. The Regular faceplate fits most medium masonry openings; the Large extends the cover area for larger openings.\u003c\/p\u003e\n\n\u003ch3\u003eClearances to combustibles\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eSurface\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eAdjacent combustible side wall\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e16\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eFaceplate to combustible side or top surround\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e9\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible mantel shelf\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible top surround projection\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePlatform \/ floor protection to ceiling\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e84\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"data-head\" style=\"margin-top: 18px;\"\u003e\n\u003cspan\u003eSurface\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMax thickness\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible side surround\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible mantel shelf projection\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e12\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eReduced clearances are not available by means of heat shields on this insert — the figures above are the binding minimums.\u003c\/p\u003e\n\n\u003ch3\u003eFloor protection\u003c\/h3\u003e\n\u003cp\u003eFloor protection requirements depend on whether the existing masonry hearth is raised 4 inches or more above the surrounding combustible floor. If the hearth is raised 4 inches or more, a non-combustible floor protector with no R-value is required and must extend at least 16 inches in front of the unit in the USA, 18 inches in Canada. If the hearth is raised less than 4 inches, a non-combustible floor protector with an R-value of at least 1.00 is required and must extend at least 22 inches in front of the unit. The manual includes a thermal-resistance lookup table for common floor protection materials (brick, cement board, ceramic tile, marble) to calculate the required R-value combination.\u003c\/p\u003e\n\n\u003ch3\u003eChimney and liner\u003c\/h3\u003e\n\u003cp\u003eThe Solution 1.7-I requires a continuous 6-inch stainless-steel chimney liner extending from the insert flue collar to the top of the chimney. The liner must conform to ULC S635 or CAN\/ULC-S640 (Canada) or UL 1777 (USA) and be rated for solid fuel. The minimum liner height is 15 feet, subject to installer verification, certification label, draft conditions, and local code. The chimney must extend at least 3 feet above the highest point of contact with the roof and at least 2 feet above any roof line or obstacle within 10 feet horizontally.\u003c\/p\u003e\n\u003cp\u003eIf the existing fireplace's throat damper is to remain, it must be locked open to clear the liner; otherwise the damper plate must be removed. A sheet-metal block-off plate (or, in Canada per CSA B365, mineral wool packing around the liner) is recommended at the throat to reduce cold-air backdraft into the room. An insulated liner (or pre-insulated liner with a wrap) improves draft and reduces creosote, and is required by code in some jurisdictions for clearance reasons.\u003c\/p\u003e\n\n\u003ch3\u003eOutside air\u003c\/h3\u003e\n\u003cp\u003eAn optional fresh-air intake kit is available for code jurisdictions requiring outside combustion air or for tight new-construction homes with mechanical ventilation. The fresh-air intake adapter installs on either the left or right side of the insert (the unused side is covered by a plate supplied in the owner's manual kit). A smoke detector and carbon monoxide detector are required in the room where the insert is installed.\u003c\/p\u003e\n\n\u003ch3\u003eCode compliance\u003c\/h3\u003e\n\u003cp\u003eCode compliance for any specific installation is determined by the local Authority Having Jurisdiction. Manufacturer listings cover what the insert is approved for; the AHJ approves what is permitted at your address. A WETT (Canada), NFI, or CSIA (USA) certified installer is strongly recommended and frequently required by code, permit, or insurance. In Canada the CSA B365 standard applies; in the USA, ANSI NFPA 211 applies. Confirm local requirements before purchasing.\u003c\/p\u003e\n\n\u003ch3\u003eCalifornia Proposition 65\u003c\/h3\u003e\n\u003cp\u003eThis product can expose you to chemicals including carbon monoxide, which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.P65warnings.ca.gov.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat's in the box, what you'll add\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003ch3\u003eShips with the insert\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSolution 1.7-I wood insert (EB00057) with welded carbon-steel firebox and arched cast-iron glazed door with silver-grooved styling\u003c\/li\u003e\n\u003cli\u003eFaceplate frame and trim, configured together at order — see \"Where it can go\" for options\u003c\/li\u003e\n\u003cli\u003e144 CFM heat-activated double-cage blower assembly with rheostat speed control and thermodisc auto-on\u003c\/li\u003e\n\u003cli\u003eAsh lip\u003c\/li\u003e\n\u003cli\u003eC-Cast baffle and stainless-steel secondary-air tube assembly\u003c\/li\u003e\n\u003cli\u003eHigh-density refractory firebrick lining\u003c\/li\u003e\n\u003cli\u003eLiner fixation brackets and hardware\u003c\/li\u003e\n\u003cli\u003eOwner's manual and product documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSold separately\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e6-inch continuous stainless-steel chimney liner kit (UL 1777, CAN\/ULC-S635, or CAN\/ULC-S640) — required for installation, sized to the chimney height\u003c\/li\u003e\n\u003cli\u003eHearth extension or floor protector sized per manual specifications, with R-value of at least 1.00 if hearth is raised less than 4 inches\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch fresh-air intake kit (SBI AC01298) — for code jurisdictions requiring outside combustion air or for tight new-construction homes\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch × 4' insulated flex pipe for fresh-air intake (SBI AC02090) — HVAC type, ULC S110 or UL 181 class 0 or class 1\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch fresh-air intake register with airtight damper (SBI AC01349) — closable outside-air damper; do not close while the insert is in use\u003c\/li\u003e\n\u003cli\u003eOptional liner hook-up system (SBI AC02006) — simplifies liner-to-flue-collar connection\u003c\/li\u003e\n\u003cli\u003eOptional offset liner adapter (SBI AC01214) — for installations where the chimney throat geometry requires offset connection\u003c\/li\u003e\n\u003cli\u003eOptional rigid fire screen (SBI AC01299) — not permitted for open-door use in the United States or in Canadian provinces\/jurisdictions with particulate-emission limits; never leave the insert unattended when used with a fire screen\u003c\/li\u003e\n\u003cli\u003eOptional tempered glass hearth pad 10mm 18\" × 50\" (SBI AC02760)\u003c\/li\u003e\n\u003cli\u003ePin-type wood moisture meter — not optional in practice\u003c\/li\u003e\n\u003cli\u003eFlue thermometer — strongly recommended for insert installations since stove-top temperature isn't accessible\u003c\/li\u003e\n\u003cli\u003eInstallation by an authorized qualified technician (WETT, NFI, or CSIA certified) — required for warranty coverage and often required by code, permit, or insurance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow it actually performs\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe 65,000 BTU\/hr maximum is a peak rating, transient, achieved on dry cordwood at high loading density and short reload intervals. The figure that matters for daily life is the sustained output across a full burn cycle, which lands in the 9,800–52,200 BTU\/hr band per the CSA B415.1-10 stack-loss method. That's a notably wide range — the Solution 1.7-I delivers usable heat from very low burn rates suitable for shoulder-season heating, up through strong sustained output for cold-snap winter heating.\u003c\/p\u003e\n\n\u003cp\u003eA realistic burn cycle from a packed load of well-seasoned hardwood produces a 30–45 minute warm-up, 2 hours of strong sustained heat once the firebox and surrounding masonry come up to temperature, then a gradual decline over the next 2–3 hours with a coal bed remaining. Total useful heat from one full pack is realistically 5–6 hours, occasionally approaching the 7-hour manufacturer maximum with dense hardwood, mild weather, and a packed coal bed.\u003c\/p\u003e\n\n\u003cp\u003eThe masonry around the insert acts as a thermal mass. Once the surrounding brick or stone is up to temperature, it continues radiating heat into the room well after the active fire has died down. This is one of the underappreciated benefits of an insert versus a freestanding stove — the masonry stores and releases heat on its own cycle. The first hour from a cold start is the slowest because that mass has to come up to temperature; once it's hot, response time is faster.\u003c\/p\u003e\n\n\u003cp\u003eThe 144 CFM heat-activated blower is what gets the heat into the room. Because most of the insert's firebox sits inside the masonry cavity, the radiant heat that would otherwise reach the room from a freestanding stove is partly absorbed by the surrounding brick. The convection jacket around the firebox captures that heat and the blower pushes it out into the room. The 144 CFM rating is notably stronger than the 90 CFM blowers used on the Destination-line inserts — more aggressive heat distribution and more effective at moving heat out of the masonry cavity.\u003c\/p\u003e\n\n\u003cp\u003eAllow the insert to reach operating temperature (approximately one hour from a cold start) before turning the blower to high speed. Per the manual, turning the blower on too early during start-up pulls heat away from the firebox and slows the build-up to clean combustion.\u003c\/p\u003e\n\n\u003cp\u003eAir-wash glass stays largely clear during proper hot burns at moderate-to-high air settings. At low burn rates with marginally seasoned wood, the glass will tar. This is universal to non-catalytic inserts, not specific to Enerzone.\u003c\/p\u003e\n\n\u003cp\u003ePower-failure operation: the insert continues to burn safely without electricity — only the blower stops. Heat distribution drops noticeably without the blower because the masonry cavity absorbs most of the firebox radiation. Plan accordingly if you're buying this insert specifically as a power-outage heat source.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eTrade-offs to know\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eInsert, not a freestanding stove.\u003c\/strong\u003e The Solution 1.7-I requires an existing masonry fireplace plus a full stainless-steel chimney liner — there's no other approved installation path. Buyers without a masonry fireplace should look at the Solution 1.7 freestanding stove (same firebox platform, no masonry requirement) or the Osburn 1700 instead.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMedium firebox platform.\u003c\/strong\u003e The Solution 1.7-I is the middle size in the Enerzone insert line — bigger than the compact Destination 1.9 (45,000 BTU, 250–1,200 sq ft), smaller than the Solution 2.3-I (75,000 BTU, 500–2,100 sq ft). For buyers in the 1,200–1,600 sq ft range it's the right fit; outside that range, step up or down.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePowerful blower, audible blower.\u003c\/strong\u003e The 144 CFM blower delivers strong heat distribution but is more audible than the 90 CFM blowers used on smaller inserts. The rheostat lets you dial speed down for quieter operation when the room is up to temperature; high speed is most useful during the active heat-output phase of the burn cycle.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e7-hour maximum burn is medium-class, not long-burn.\u003c\/strong\u003e A 1.86 ft³ non-cat insert gives you meaningful primary-heat capability across 1,200–1,600 sq ft, with realistic 5–6 hour burn cycles. If you want true 8+ hour overnight burns, step up to the Solution 2.3-I or to a catalytic insert with a real low-output mode.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe 1,800 sq ft figure is aspirational.\u003c\/strong\u003e The most consistent owner regret across medium inserts is buying for the high end of the manufacturer's heating range. If you need to reliably heat more than ~1,500 sq ft as primary winter heat in a cold climate or older home, step up a firebox size.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe blower is essential, not optional.\u003c\/strong\u003e Unlike a freestanding stove where the blower meaningfully improves heat distribution, on an insert the blower is what gets the heat into the room at all. Most of the firebox sits inside the masonry cavity, which absorbs radiant heat. The insert will run safely without the blower (useful in a power outage), but day-to-day heat into the room depends on the blower being on and working.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eExisting fireplace dimensions are non-negotiable.\u003c\/strong\u003e The masonry opening must meet the manual's minimum dimensions (21 1\/2\" H × 27 1\/2\" W × 12 3\/4\" D). The Large faceplate can cover a larger opening, but cannot compensate for an undersized one. Measure before purchase.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFaceplate and trim are one-time decisions.\u003c\/strong\u003e Both the faceplate size and the trim finish are configured at order, not field-swappable. The combinations let the insert fit many room layouts and aesthetics, but choose the configuration that matches the fireplace you're installing into — measure the opening and confirm the look before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e2.4 g\/hr emissions is mid-pack.\u003c\/strong\u003e The Solution 1.7-I is within the EPA 2020 cordwood limit (2.5 g\/hr) but not class-leading on emissions. Buyers specifically wanting lower emissions for an EPA non-attainment county should compare against cross-shops or larger fireboxes with lower published rates.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood quality is not negotiable.\u003c\/strong\u003e The most common \"the insert doesn't heat\" complaint comes from owners running marginally seasoned wood. Secondary combustion works best with dry, properly seasoned fuel, ideally around 15–20% moisture. A pin-type moisture meter is the single best accessory for this insert.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eOperating reality\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eFirst burns.\u003c\/strong\u003e The first few fires cure the high-temperature paint and condition the internal components. Burn two or three small fires first, then build bigger, hotter fires until the paint smell is gone. The smell can be strong; ventilate the room well and avoid prolonged exposure during cure-in.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLighting.\u003c\/strong\u003e Per the manual's EPA loading procedure, the recommended method is a bottom-up build: split a start-up fuel log into 6 pieces, criss-cross them at 45 degrees on the firebrick in three rows from smallest to biggest, criss-cross 12–15 kindling pieces on top in three rows, place newspaper on top, and light. Leave the door slightly ajar (about 1 minute to 1:30) until the kindling is fully engaged, then close and latch the door with the air control fully open.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAir control.\u003c\/strong\u003e Single-lever, located underneath the ash shelf. Pull the handle completely toward you to open (HIGH burn rate). Push completely to close (LOW burn rate). Full open at light-off; gradually closed only after the load is fully engaged and stable secondary flames are established. The manual specifies closing the primary air control by small increments (about 1\/16 inch at a time) between 4 and 15 minutes after a reload — too fast and the fire smolders.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eReload cadence.\u003c\/strong\u003e 2–3 hours between reloads in active heating use; up to 6 hours for a final overnight pack with the air shut hard. Per the manual's loading procedure, rake remaining charcoal toward the front of the firebox before loading. Place three logs east-west on the coal bed leaving about 1–2 inches of air space between the rear firebrick and the first piece, then two more logs slightly angled on top. Open the air for a minute or two before opening the door, open the door slowly to avoid smoke rollout, load, close the door, and run the air open until the load is fully engaged before reducing gradually. Do not elevate the fire by using a grate.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBurn in cycles, not single-log feeds.\u003c\/strong\u003e Do not attempt to produce steady heat output by placing a single log on the fire at regular intervals. Always place at least three (preferably more) pieces on the fire at a time so the heat radiated from one piece helps ignite the pieces next to it. Each load should provide several hours of heating.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAsh management.\u003c\/strong\u003e Empty ash every 2–3 days during full-time heating. The best time to remove ash is in the morning after an overnight fire when the insert is relatively cool but there is still some chimney draft to draw ash dust into the insert rather than into the room. Always dispose of ash in a tightly covered metal container on a non-combustible surface, well away from combustible materials — ash retains hot embers for days. Never store ashes indoors, in a non-metallic container, or on a wooden deck.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGlass cleaning.\u003c\/strong\u003e Damp newspaper dipped in cold ash, or a dedicated ceramic-glass cleaner. Daily wipe during low-burn weather; weekly during high-burn. Black streaks at the lower edge mean wet wood; black uniformly across the glass means burns are running too cool. Brown stains at the lower corners mean smoky combustion. Do not clean the glass when the insert is hot, and do not strike or slam the glass door shut.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoor and glass gaskets.\u003c\/strong\u003e Per the manual, the door gasket needs replacement when the paper-strip test fails: close the door on a strip of paper and try to pull it out; firm resistance means the gasket is sealing, easy pull means it's time to replace. Test all the way around the door. The latch mechanism is adjustable — remove the split pin with pliers and turn the handle one counterclockwise turn to increase pressure. Plan on every 3–5 seasons in regular use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAnnual chimney sweep.\u003c\/strong\u003e Per the manual, the chimney liner should be cleaned and inspected at least once each year. Inspect every two months during the heating season until you know your creosote-formation rate; monthly is safer for new burners. If buildup reaches 1\/8 inch, sweep immediately. The baffle and secondary tubes can be removed for sweep access. Insert installations make sweeping more involved than freestanding stoves — many owners hire a CSIA-certified sweep rather than doing it themselves.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood seasoning.\u003c\/strong\u003e Hardwood needs 12–24 months split, stacked off the ground, top-covered, with sun and wind on the sides. Don't trust supplier \"seasoned\" claims — use a pin-type moisture meter, split a piece in half, measure the fresh face. Manual target: 15–20% moisture. Wood above 25% will smolder, soot the glass, line the chimney with creosote, and undercut every published efficiency and emissions number on this page.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlower maintenance.\u003c\/strong\u003e Keep the blower intake and fins free of dust. Vacuum dust accumulation annually. Do not oil the blower unless the blower manual specifically calls for lubrication. Replacement blowers and related service parts are available through Enerzone\/SBI dealers and parts channels if needed years out.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat never to burn.\u003c\/strong\u003e Per the manual and EPA fuel rules: no coal, garbage, yard waste, materials containing rubber or plastic, waste petroleum products, paint or paint thinners, asphalt products, painted or pressure-treated wood, railroad ties, manure or animal remains, plywood, particle board, paper products, asbestos materials, construction or demolition debris, salt-water driftwood, or unseasoned wood. This does not prohibit normal fire starters made from paper, cardboard, sawdust, wax, or similar substances when used only to start a fire. Burning prohibited materials destroys the firebox, voids the warranty, and releases toxic compounds into your home and the chimney. Do not burn manufactured logs made of wax-impregnated sawdust or logs with chemical additives; 100% compressed-sawdust logs can be used with caution but never more than two at a time.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWarranty and service\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe Enerzone limited lifetime warranty applies to the original retail purchaser only and is non-transferable. The warranty applies to normal residential use only. Proof of purchase (dated bill of sale), model name, and serial number are required for any warranty claim. Online registration is recommended at enerzone-intl.com but not required if a dated invoice is retained.\u003c\/p\u003e\n\n\u003ch3\u003eCoverage by component\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eComponent\u003c\/span\u003e\u003cspan\u003eParts\u003c\/span\u003e\u003cspan\u003eLabor\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustion chamber welds, cast-iron door frame\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCeramic glass, plating manufacturing defects\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eSurrounds, heat shields, trims, C-Cast baffle, secondary air tubes\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e7 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHandle assembly, glass retainers, air control mechanism\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e3 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eRemovable carbon-steel firebox components\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eBlower, heat sensors, switches, rheostat, wiring, electronics\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e2 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePaint (peeling), gaskets, insulation, ceramic fiber blankets, and other options\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eReplacement parts under warranty\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e90 d\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eA one-time replacement limit applies to all parts with lifetime coverage. Warranty is void if the unit is used to burn anything other than seasoned cordwood, or if it is not operated according to the owner's manual. Damage caused by misuse, improper installation, lack of maintenance, overfiring, downdrafts, venting problems, or under-estimated heating area is not covered. Improper installation by anyone other than an authorized qualified technician voids the warranty.\u003c\/p\u003e\n\n\u003cp\u003eWarranty claims are made through your Enerzone dealer and remain subject to SBI\/Enerzone inspection, approval, and the current written warranty. Kaminos is the retailer for this insert and supports buyers through purchase; final warranty approval rests with SBI as the manufacturer.\u003c\/p\u003e\n\n\u003cp class=\"warranty-note\"\u003eEnerzone may require photos or returned parts to support a claim; repair work covered by warranty requires prior manufacturer approval.\u003c\/p\u003e\n\n\u003cp class=\"warranty-note\"\u003eCoverage details can change by component and warranty revision; the current Enerzone warranty controls.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCompare with\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eEnerzone Solution 2.3-I Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eStep-up sibling in the Solution insert line. Larger 2.4 ft³ firebox, 75,000 BTU\/hr maximum, 500–2,100 sq ft heating range, 20-inch log capacity, 8-hour maximum burn. Same Enerzone-tier styling and 144 CFM blower. Choose the Solution 2.3-I if you need to heat over 1,800 sq ft, want 20-inch logs, or want longer burn cycles; choose the Solution 1.7-I for medium spaces and a smaller masonry opening.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eEnerzone Destination 1.9 Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eSmaller, more compact sibling for the tightest masonry openings. 1.2 ft³ firebox (1.03 ft³ EPA), 45,000 BTU\/hr maximum, 250–1,200 sq ft heating range, 17-inch log capacity, 90 CFM flush-mount blower, tapered shape designed for small fireplaces. Higher published efficiency (75% HHV) on a smaller firebox. Choose the Destination 1.9 if you have a small masonry opening or need to heat under 1,200 sq ft; choose the Solution 1.7-I for medium spaces with a more standard masonry opening.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eOsburn 1700 Wood Stove\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eFreestanding equivalent on the same firebox platform — same 1.86 ft³ overall \/ 1.44 ft³ EPA firebox, same 65,000 BTU\/hr maximum output, same 18-inch log capacity. Osburn brand finish with door overlay configuration in Black or Brushed Nickel. Choose the Osburn 1700 if you don't have an existing masonry fireplace, or if you want a freestanding stove for visual presence and full radiant heat in the room; choose the Solution 1.7-I if you have a masonry fireplace to convert.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003ePacific Energy Vista Insert LE\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eCross-brand competitor in the medium-small insert class. 1.6 ft³ firebox, 56,000 BTU\/hr maximum, 1.9 g\/hr emissions, 72% HHV efficiency, 17-inch maximum log. Pacific Energy's reliable single-lever non-cat technology, premium build, higher price. Slightly smaller firebox than the Solution 1.7-I but in the same general size class. Buyers cross-shopping for medium masonry inserts often compare these two.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cp class=\"pull\"\u003eThe Solution 1.7-I is the medium-sized wood insert in the Enerzone line. Built to turn an existing masonry fireplace with a medium opening into a serious heat source, with 18-inch logs, a 7-hour burn cycle, and a powerful 144 CFM heat-activated blower included as standard. Measure the opening, install it right, burn good wood, and it carries you through winter.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Enerzone","offers":[{"title":"Regular Black","offer_id":50195932119233,"sku":"EB00057+AC01287+OA10122","price":3179.0,"currency_code":"USD","in_stock":true},{"title":"Regular Brushed Nickel","offer_id":50195932152001,"sku":"EB00057+AC01287+OA10123","price":3179.0,"currency_code":"USD","in_stock":true},{"title":"Large Black","offer_id":50195932184769,"sku":"EB00057+AC01285+OA10128","price":3234.0,"currency_code":"USD","in_stock":true},{"title":"Large Brushed Nickel","offer_id":50195932217537,"sku":"EB00057+AC01285+OA10129","price":3234.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/Enerzone_Solution_1.7-i_Wood_Insert_Life_Style_Kaminos.webp?v=1778249439"},{"product_id":"enerzone-solution-2-3-i-wood-insert","title":"Enerzone Solution 2.3-i Wood Insert","description":"\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #231F20; line-height: 1.55; width: 100%; max-width: 100%; box-sizing: border-box; margin: 0; padding: 0; font-size: 16px; overflow-wrap: break-word; word-wrap: break-word; word-break: normal;\"\u003e\n\n\u003cstyle\u003e\n  .km-desc, .km-desc * { box-sizing: border-box; max-width: 100%; }\n  .km-desc { width: 100%; }\n  .km-desc p { margin: 0 0 14px; }\n  .km-desc h3 { font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px; font-weight: 600; color: #9B774D; margin: 22px 0 10px; }\n  .km-desc .spec-list { margin: 12px 0 0; }\n  .km-desc .spec-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .spec-row:first-child { border-top: 1px solid rgba(75,72,75,0.35); padding-top: 14px; }\n  .km-desc .spec-label { font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px; font-weight: 600; color: #4B484B; margin-bottom: 6px; }\n  .km-desc .spec-value { font-weight: 600; font-size: 15px; color: #231F20; margin-bottom: 6px; line-height: 1.35; }\n  .km-desc .spec-meaning { color: #4B484B; font-size: 13px; line-height: 1.55; }\n  @media (min-width: 720px) {\n    .km-desc .spec-row { display: grid; grid-template-columns: 38% 30% 1fr; gap: 16px; align-items: start; padding: 12px 0; }\n    .km-desc .spec-label { margin-bottom: 0; align-self: center; }\n    .km-desc .spec-value { margin-bottom: 0; font-size: 14px; align-self: center; }\n    .km-desc .spec-meaning { font-size: 13px; }\n    .km-desc .spec-row:first-child { padding-top: 12px; }\n  }\n  .km-desc .data-row { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; padding: 12px 0; border-bottom: 1px solid rgba(75,72,75,0.12); align-items: baseline; font-size: 13px; }\n  .km-desc .data-head + .data-row { border-top: 1px solid rgba(75,72,75,0.35); }\n  .km-desc .data-row .data-label { color: #4B484B; line-height: 1.4; }\n  .km-desc .data-row .data-val { font-weight: 600; color: #231F20; text-align: right; min-width: 56px; }\n  .km-desc .data-head { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; padding-bottom: 8px; font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px; font-weight: 600; color: #4B484B; }\n  .km-desc .data-head span:nth-child(2), .km-desc .data-head span:nth-child(3) { text-align: right; min-width: 56px; }\n  .km-desc ul { list-style: none; padding: 0; margin: 10px 0 14px; }\n  .km-desc ul li { padding: 4px 0 4px 18px; position: relative; line-height: 1.55; }\n  .km-desc ul li:before { content: \"—\"; position: absolute; left: 0; color: #9B774D; font-weight: 500; }\n  .km-desc .compare-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .compare-row:last-child { border-bottom: 0; }\n  .km-desc .compare-name { font-weight: 600; color: #231F20; display: inline-block; padding-bottom: 1px; }\n  .km-desc .compare-orient { color: #4B484B; margin-top: 4px; font-size: 13px; line-height: 1.5; }\n  .km-desc .pull { font-style: italic; font-size: clamp(16px, 4.2vw, 22px); line-height: 1.4; color: #231F20; border-left: 2px solid #9B774D; padding: 0 0 0 16px; margin: 32px 0 16px; }\n  .km-desc .lede { font-size: clamp(16px, 4vw, 22px); line-height: 1.4; letter-spacing: -0.2px; font-weight: 400; color: #231F20; margin: 0 0 24px; }\n  .km-desc .warranty-note { font-size: 12px; color: #4B484B; font-style: italic; margin-top: 14px; }\n  .km-desc details { border-top: 1px solid rgba(75,72,75,0.18); margin: 0; padding: 0; }\n  .km-desc details:last-of-type { border-bottom: 1px solid rgba(75,72,75,0.18); }\n  .km-desc details \u003e summary { list-style: none; cursor: pointer; padding: 18px 32px 18px 0; position: relative; font-size: clamp(16px, 4.2vw, 20px); line-height: 1.3; font-weight: 500; color: #231F20; letter-spacing: -0.2px; }\n  .km-desc details \u003e summary::-webkit-details-marker { display: none; }\n  .km-desc details \u003e summary::after { content: \"+\"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-size: 22px; font-weight: 300; color: #9B774D; line-height: 1; }\n  .km-desc details[open] \u003e summary::after { content: \"−\"; }\n  .km-desc details \u003e summary:focus-visible { outline: 2px solid #9B774D; outline-offset: 4px; }\n  .km-desc details \u003e .acc-body { padding: 0 0 28px 0; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"km-desc\"\u003e\n\n\u003cp class=\"lede\"\u003eA 2.4 ft³ non-catalytic medium-large wood insert with a contemporary arched cast-iron door — the Enerzone-tier insert at the medium-large stove platform shared with the Solution 2.3 freestanding stove. EPA 2020 cordwood certified at 72% HHV efficiency, with a 20-inch maximum east-west log capacity, up to 2,100 sq ft of heating area, an 8-hour maximum burn time, 75,000 BTU\/hr maximum output, and a powerful 144 CFM heat-activated blower included as standard.\u003c\/p\u003e\n\n\u003cdetails open\u003e\n\u003csummary\u003eWho this is for\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003ch3\u003eRight buyer\u003c\/h3\u003e\n\u003cp\u003eOwners of a medium or large masonry fireplace who want to convert an inefficient open hearth into a serious primary heat source — up to 2,100 sq ft of zone heating capability with a 2.4 ft³ firebox, 20-inch log capacity, and an 8-hour maximum burn cycle. Reasonable insulation, access to seasoned hardwood at 15–20% moisture, and an existing masonry fireplace that meets the minimum opening dimensions (23 3\/8\" H × 28 7\/8\" W × 15 3\/4\" D per manual) are the basic requirements.\u003c\/p\u003e\n\n\u003cp\u003eBuyers heating 1,400–1,800 sq ft as primary winter heat in moderate climates, or 1,000–1,400 sq ft in cold climates and older homes. The Solution 2.3-I sits in the sweet spot of the Enerzone insert line — substantially more firebox than the Solution 1.7-I (1.86 ft³) without the substantial masonry footprint of the Solution 3.5-I (which requires a 31-inch minimum opening width that excludes many older fireplaces).\u003c\/p\u003e\n\n\u003cp\u003eBuyers comparing efficiency numbers. At 72% HHV average efficiency (79% LHV optimum, 76% optimum heat transfer at low burn rate), the Solution 2.3-I is among the more efficient non-catalytic inserts available — meaningfully higher than the Destination 2.7 (64% HHV) and competitive with smaller siblings in the line.\u003c\/p\u003e\n\n\u003cp\u003eBuyers who want a configurable faceplate finish. The Solution 2.3-I ships with a choice of Regular (29\" × 44\") or Large (32\" × 50\") faceplate, each in Black or Brushed Nickel trim. Four total combinations to match the existing masonry opening and room aesthetic. Configuration is selected at order, not field-swappable.\u003c\/p\u003e\n\n\u003ch3\u003eWrong buyer\u003c\/h3\u003e\n\u003cp\u003eNot for buyers without an existing code-compliant masonry fireplace. Wood inserts must be installed inside a lined masonry fireplace with a continuous stainless-steel chimney liner running the full height. This insert is not approved for factory-built (prefab) metal fireplaces, mobile homes, alcoves, or freestanding installation. If you don't have a masonry fireplace, look at the Solution 2.3 freestanding stove (same firebox platform, no masonry requirement).\u003c\/p\u003e\n\n\u003cp\u003eNot for buyers heating under 1,200 sq ft as primary heat. The 2.4 ft³ firebox will overheat smaller spaces and force inefficient low burns that smolder, blacken the glass, and produce creosote. For smaller spaces, step down to the Solution 1.7-I (1.86 ft³, 500–1,800 sq ft).\u003c\/p\u003e\n\n\u003cp\u003eNot for buyers expecting 10+ hour overnight burns. The 8-hour manufacturer maximum is achievable on a packed load of dense hardwood with the air shut down hard, but useful heat from a packed load is realistically 6–7 hours. For longer burns, consider a catalytic insert in this size class.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eAt a glance\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cdiv class=\"spec-list\"\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion technology\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNon-catalytic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eSecondary-air tubes reignite smoke gases. No catalyst to replace; one air-control lever; simpler operation than a cat insert but shorter low-and-slow burn times.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eInstallation type\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMasonry insert\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInstalls inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. Not approved for factory-built fireplaces, mobile homes, alcoves, or freestanding installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFirebox volume\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e2.4 ft³ overall \/ 1.95 ft³ EPA\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Medium-large firebox sized for primary zone heating across 500–2,100 sq ft. The overall figure includes a buffer zone above the EPA loading line; the 1.95 ft³ figure is the usable loading volume used during EPA emissions certification.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum heat output\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e75,000 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePeak output on dry cordwood, transient. Sustained output across a burn cycle is substantially lower.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eTested output range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e14,200–44,500 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer CSA B415.1-10 stack-loss method. The realistic operating band buyers should plan around.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eHeating range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e500–2,100 sq ft\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer's stated range. Real-world comfort sizing for primary heat is roughly 1,400–1,800 sq ft in moderate climates and lower in cold climates or older homes — depends on insulation, layout, climate, ceiling height, fuel quality, and installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eAverage efficiency\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e72% HHV \/ 77% LHV\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003e79% optimum overall efficiency at low burn rate; 76% optimum heat transfer efficiency. HHV is the federal standard. Among the more efficient non-catalytic inserts available. Government incentives may apply by jurisdiction and installation date.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eParticulate emissions\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e2.3 g\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. EPA 2020 limits are 2.0 g\/hr crib-wood or 2.5 g\/hr cordwood. The insert is listed as compliant with the 2020 cordwood standard.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum burn time\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUp to 8 hours\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer maximum at the lowest air setting. Useful heat through a burn cycle is realistically 6–7 hours.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eRecommended log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e16 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Most firewood suppliers cut to this length.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e20 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. 4-inch margin over the recommended length — meaningful for buyers with access to longer-cut firewood. Logs load across the width of the firebox.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eConstruction\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eCarbon steel, cast-iron door\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eWelded carbon-steel firebox with an arched cast-iron glazed door and silver-grooved styling. Lifetime warranty on the combustion-chamber welds.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eGlass\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e16 5\/8\" × 10 5\/8\", ceramic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eArched ceramic glass with air-wash, 5\/32\" (4 mm) thick, tested to 1,400 °F per manual. Replacement must be SCHOTT ceramic with the same specification — tempered or ordinary glass will not withstand the operating temperatures.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBlower\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eIncluded, up to 144 CFM\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Powerful double-cage heat-activated blower with rheostat speed control and thermodisc auto-on. For an insert, where most of the firebox sits inside the masonry cavity, the blower is what gets the heat into the room.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBaffle\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eC-Cast\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eRigid aluminosilicate fiber baffle rated above 2,000 °F.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFlue connection\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e6 in (insert liner)\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eTop of the unit. Requires a continuous stainless-steel chimney liner running the full height of the masonry chimney. Liner must conform to UL 1777 (USA), CAN\/ULC-S635, or CAN\/ULC-S640 (Canada). Per manual, minimum chimney height 12 feet. Sold separately.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion chamber\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e21\" W × 16 1\/2\" D × 11 7\/8\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInside firebox dimensions per manual. Designed for east-west loading across the width of the firebox. North-south loading is not practical at this depth.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDoor opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e17 1\/2\" W × 9 3\/4\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eLoading door opening. Accommodates 20-inch logs loaded east-west.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMinimum masonry opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e23 3\/8\" H × 28 7\/8\" W × 15 3\/4\" D\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Confirm fireplace dimensions before ordering. See \"Where it can go\" for faceplate options.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eShipping weight\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e456 lb\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePlan for multi-person handling. Remove loose internal components as appropriate during installation to reduce handling weight.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCountry of origin\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMade in Canada\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufactured by Stove Builder International (SBI) in Saint-Augustin-de-Desmaures, Quebec.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhere it can go\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe Solution 2.3-I is approved only for installation inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. It is not approved for installation in factory-built (prefab) metal fireplaces, in mobile or manufactured homes, in alcoves, or as a freestanding unit. The masonry fireplace and chimney must be inspected before installation for cracks, loose mortar, creosote, blockage, or other signs of deterioration.\u003c\/p\u003e\n\n\u003ch3\u003eMinimum masonry opening\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eDimension\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHeight\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e23 3\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eWidth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e28 7\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eDepth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e15 3\/4\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eIf a fresh-air intake is being installed, add at least 4 inches to the width. Plan for a small installation margin above the insert to seat the liner adapter — an opening exactly at the minimum will be a tight install. Measure carefully before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eFaceplate options\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eConfiguration\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eSize\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eRegular faceplate\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e29\" × 44\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eLarge faceplate\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e32\" × 50\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eOptional cuttable faceplate (SBI AC01357)\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e32\" × 50\", 18 GA\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eFaceplate frame and trim are configured together at order. Each standard size is available in Black or Brushed Nickel trim. The Regular faceplate fits most medium masonry openings; the Large extends the cover area for larger openings. The optional 18-gauge cuttable faceplate (SBI AC01357) is ordered as a separate accessory — its edges can be trimmed to contour an arched fireplace or to minimize visible flashing where the standard faceplate sizes don't fit cleanly.\u003c\/p\u003e\n\n\u003ch3\u003eClearances to combustibles\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eSurface\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eAdjacent combustible side wall\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e16\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eFaceplate to combustible side or top surround\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e9\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible mantel shelf\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible top surround projection\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePlatform \/ floor protection to ceiling\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e84\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"data-head\" style=\"margin-top: 18px;\"\u003e\n\u003cspan\u003eSurface\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMax thickness\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible side surround\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible mantel shelf projection\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e12\"\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eAn optional 7 3\/16\" × 26\" heat shield for the surround\/shelf (SBI AC01317) is available and can be used to manage combustible-surround conditions where standard clearances are tight; the certification label on the back of the insert remains the binding figure for any specific installation.\u003c\/p\u003e\n\n\u003ch3\u003eFloor protection\u003c\/h3\u003e\n\u003cp\u003eFloor protection requirements depend on whether the existing masonry hearth is raised 4 inches or more above the surrounding combustible floor. If the hearth is raised 4 inches or more, a non-combustible floor protector with no R-value is required and must extend at least 16 inches in front of the unit in the USA, 18 inches in Canada. If the hearth is raised less than 4 inches, a non-combustible floor protector with an R-value of at least 1.00 is required and must extend at least 22 inches in front of the unit. The manual includes a thermal-resistance lookup table for common floor protection materials (brick, cement board, ceramic tile, marble) to calculate the required R-value combination.\u003c\/p\u003e\n\n\u003ch3\u003eChimney and liner\u003c\/h3\u003e\n\u003cp\u003eThe Solution 2.3-I requires a continuous 6-inch stainless-steel chimney liner extending from the insert flue collar to the top of the chimney. The liner must conform to ULC S635 or CAN\/ULC-S640 (Canada) or UL 1777 (USA) and be rated for solid fuel. The minimum liner height is 12 feet, subject to installer verification, certification label, draft conditions, and local code. The chimney must extend at least 3 feet above the highest point of contact with the roof and at least 2 feet above any roof line or obstacle within 10 feet horizontally.\u003c\/p\u003e\n\n\u003cp\u003eIf the existing fireplace's throat damper is to remain, it must be locked open to clear the liner; otherwise the damper plate must be removed. A sheet-metal block-off plate (or, in Canada per CSA B365, mineral wool packing around the liner) is recommended at the throat to reduce cold-air backdraft into the room. An insulated liner (or pre-insulated liner with a wrap) improves draft and reduces creosote, and is required by code in some jurisdictions for clearance reasons.\u003c\/p\u003e\n\n\u003ch3\u003eOutside air\u003c\/h3\u003e\n\u003cp\u003eAn optional fresh-air intake kit is available for code jurisdictions requiring outside combustion air or for tight new-construction homes with mechanical ventilation. The fresh-air intake adapter installs on either the left or right side of the insert (the unused side is covered by a plate supplied in the owner's manual kit). A smoke detector and carbon monoxide detector are required in the room where the insert is installed.\u003c\/p\u003e\n\n\u003ch3\u003eCode compliance\u003c\/h3\u003e\n\u003cp\u003eCode compliance for any specific installation is determined by the local Authority Having Jurisdiction. Manufacturer listings cover what the insert is approved for; the AHJ approves what is permitted at your address. A WETT (Canada), NFI, or CSIA (USA) certified installer is strongly recommended and frequently required by code, permit, or insurance. In Canada the CSA B365 standard applies; in the USA, ANSI NFPA 211 applies. Confirm local requirements before purchasing.\u003c\/p\u003e\n\n\u003ch3\u003eCalifornia Proposition 65\u003c\/h3\u003e\n\u003cp\u003eThis product can expose you to chemicals including carbon monoxide, which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.P65warnings.ca.gov.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat's in the box, what you'll add\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003ch3\u003eShips with the insert\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSolution 2.3-I wood insert (EB00064) with welded carbon-steel firebox and arched cast-iron glazed door with silver-grooved styling\u003c\/li\u003e\n\u003cli\u003eFaceplate frame and trim, configured together at order — see \"Where it can go\" for options\u003c\/li\u003e\n\u003cli\u003e144 CFM heat-activated double-cage blower assembly with rheostat speed control and thermodisc auto-on\u003c\/li\u003e\n\u003cli\u003eAsh lip\u003c\/li\u003e\n\u003cli\u003eC-Cast baffle and stainless-steel secondary-air tube assembly\u003c\/li\u003e\n\u003cli\u003eHigh-density refractory firebrick lining\u003c\/li\u003e\n\u003cli\u003eLiner fixation brackets and hardware\u003c\/li\u003e\n\u003cli\u003eOwner's manual and product documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSold separately\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e6-inch continuous stainless-steel chimney liner kit (UL 1777, CAN\/ULC-S635, or CAN\/ULC-S640) — required for installation, sized to the chimney height\u003c\/li\u003e\n\u003cli\u003eHearth extension or floor protector sized per manual specifications, with R-value of at least 1.00 if hearth is raised less than 4 inches\u003c\/li\u003e\n\u003cli\u003eOptional 32\" × 50\" cuttable faceplate, 18 gauge (SBI AC01357) — for installations where the standard faceplate sizes don't fit cleanly\u003c\/li\u003e\n\u003cli\u003eOptional 7 3\/16\" × 26\" heat shield for surround\/shelf (SBI AC01317) — manages combustible-surround conditions where standard clearances are tight\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch fresh-air intake kit (SBI AC01298) — for code jurisdictions requiring outside combustion air or for tight new-construction homes\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch × 4' insulated flex pipe for fresh-air intake (SBI AC02090) — HVAC type, ULC S110 or UL 181 class 0 or class 1\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch fresh-air intake register with airtight damper (SBI AC01349) — closable outside-air damper; do not close while the insert is in use\u003c\/li\u003e\n\u003cli\u003eOptional liner hook-up system (SBI AC02006) — simplifies liner-to-flue-collar connection\u003c\/li\u003e\n\u003cli\u003eOptional offset liner adapter (SBI AC01214) — for installations where the chimney throat geometry requires offset connection\u003c\/li\u003e\n\u003cli\u003eOptional rigid fire screen (SBI AC01315) — not permitted for open-door use in the United States or in Canadian provinces\/jurisdictions with particulate-emission limits; never leave the insert unattended when used with a fire screen\u003c\/li\u003e\n\u003cli\u003eOptional tempered glass hearth pad 10mm 18\" × 50\" (SBI AC02760)\u003c\/li\u003e\n\u003cli\u003ePin-type wood moisture meter — not optional in practice\u003c\/li\u003e\n\u003cli\u003eFlue thermometer — strongly recommended for insert installations since stove-top temperature isn't accessible\u003c\/li\u003e\n\u003cli\u003eInstallation by an authorized qualified technician (WETT, NFI, or CSIA certified) — required for warranty coverage and often required by code, permit, or insurance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eHow it actually performs\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe 75,000 BTU\/hr maximum is a peak rating, transient, achieved on dry cordwood at high loading density and short reload intervals. The figure that matters for daily life is the sustained output across a full burn cycle, which lands in the 14,200–44,500 BTU\/hr band per the CSA B415.1-10 stack-loss method. That's a notably wide range — the Solution 2.3-I delivers usable heat from very low burn rates suitable for shoulder-season heating, up through strong sustained output for cold-snap winter heating.\u003c\/p\u003e\n\n\u003cp\u003eA realistic burn cycle from a packed load of well-seasoned hardwood produces a 30–45 minute warm-up, 2–3 hours of strong sustained heat once the firebox and surrounding masonry come up to temperature, then a gradual decline over the next 3–4 hours with a coal bed remaining. Total useful heat from one full pack is realistically 6–7 hours, occasionally approaching the 8-hour manufacturer maximum with dense hardwood, mild weather, and a packed coal bed.\u003c\/p\u003e\n\n\u003cp\u003eThe masonry around the insert acts as a thermal mass. Once the surrounding brick or stone is up to temperature, it continues radiating heat into the room well after the active fire has died down. This is one of the underappreciated benefits of an insert versus a freestanding stove — the masonry stores and releases heat on its own cycle. The first hour from a cold start is the slowest because that mass has to come up to temperature; once it's hot, response time is faster.\u003c\/p\u003e\n\n\u003cp\u003eThe 144 CFM heat-activated blower is what gets the heat into the room. Because most of the insert's firebox sits inside the masonry cavity, the radiant heat that would otherwise reach the room from a freestanding stove is partly absorbed by the surrounding brick. The convection jacket around the firebox captures that heat and the blower pushes it out into the room. The 144 CFM rating is notably stronger than the 90 CFM blowers used on the Destination-line inserts — more aggressive heat distribution and more effective at moving heat out of the masonry cavity. The rheostat lets you dial speed down for quieter operation once the room is up to temperature.\u003c\/p\u003e\n\n\u003cp\u003eAllow the insert to reach operating temperature (approximately one hour from a cold start) before turning the blower to high speed. Per the manual, turning the blower on too early during start-up pulls heat away from the firebox and slows the build-up to clean combustion.\u003c\/p\u003e\n\n\u003cp\u003eAir-wash glass stays largely clear during proper hot burns at moderate-to-high air settings. At low burn rates with marginally seasoned wood, the glass will tar. This is universal to non-catalytic inserts, not specific to Enerzone, and it is the strongest signal that your wood is too wet or your burn is too cool.\u003c\/p\u003e\n\n\u003cp\u003ePower-failure operation: the insert continues to burn safely without electricity — only the blower stops. Heat distribution drops noticeably without the blower because the masonry cavity absorbs most of the firebox radiation. Plan accordingly if you're buying this insert specifically as a power-outage heat source.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eTrade-offs to know\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eInsert, not a freestanding stove.\u003c\/strong\u003e The Solution 2.3-I requires an existing masonry fireplace plus a full stainless-steel chimney liner — there's no other approved installation path. Buyers without a masonry fireplace should look at the Solution 2.3 freestanding stove (same firebox platform, no masonry requirement) instead.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMedium-large firebox sweet spot.\u003c\/strong\u003e The Solution 2.3-I is positioned between the Solution 1.7-I (1.86 ft³, 500–1,800 sq ft) and the Solution 3.5-I (3.5 ft³, 1,000–2,700 sq ft). For buyers in the 1,400–1,800 sq ft primary-heat range, it's the right tool. Outside that range, step up or down.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e72% HHV efficiency is strong for a non-cat.\u003c\/strong\u003e Among the more efficient non-catalytic inserts available — meaningfully higher than the Destination 2.7 (64% HHV) and competitive with smaller siblings in the line. For buyers comparing on efficiency numbers, the Solution 2.3-I makes a solid case.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e2.3 g\/hr emissions is mid-pack.\u003c\/strong\u003e Within the EPA 2020 cordwood limit (2.5 g\/hr) but not class-leading on emissions. Buyers specifically wanting lower emissions for an EPA non-attainment county should compare against the Destination 2.7 (1.2 g\/hr) or larger fireboxes with lower published rates.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePowerful blower, audible blower.\u003c\/strong\u003e The 144 CFM blower delivers strong heat distribution but is more audible than the 90 CFM blowers used on Destination-line inserts. The rheostat lets you dial speed down for quieter operation when the room is up to temperature; high speed is most useful during the active heat-output phase of the burn cycle.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e8-hour maximum burn is medium-class, not long-burn.\u003c\/strong\u003e A 2.4 ft³ non-cat insert gives you meaningful primary-heat capability across 1,400–1,800 sq ft, with realistic 6–7 hour burn cycles. If you want true 10+ hour overnight burns, consider a catalytic insert in this size class with a real low-output mode.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe 2,100 sq ft figure is aspirational.\u003c\/strong\u003e The most consistent owner regret across medium-large inserts is buying for the high end of the manufacturer's heating range. If you need to reliably heat more than ~1,800 sq ft as primary winter heat in a cold climate or older home, step up to the Solution 3.5-I.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe blower is essential, not optional.\u003c\/strong\u003e Unlike a freestanding stove where the blower meaningfully improves heat distribution, on an insert the blower is what gets the heat into the room at all. Most of the firebox sits inside the masonry cavity, which absorbs radiant heat. The insert will run safely without the blower (useful in a power outage), but day-to-day heat into the room depends on the blower being on and working.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eExisting fireplace dimensions are non-negotiable.\u003c\/strong\u003e The masonry opening must meet the manual's minimum dimensions (23 3\/8\" H × 28 7\/8\" W × 15 3\/4\" D). The Large faceplate or the optional cuttable faceplate can cover a larger opening, but cannot compensate for an undersized one. Measure before purchase.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFaceplate and trim are one-time decisions.\u003c\/strong\u003e Both the faceplate size and the trim finish are configured at order, not field-swappable. The combinations let the insert fit many room layouts and aesthetics, but choose the configuration that matches the fireplace you're installing into — measure the opening and confirm the look before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood quality is not negotiable.\u003c\/strong\u003e The most common \"the insert doesn't heat\" complaint comes from owners running marginally seasoned wood. Secondary combustion works best with dry, properly seasoned fuel, ideally around 15–20% moisture. A pin-type moisture meter is the single best accessory for this insert.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eOperating reality\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eFirst burns.\u003c\/strong\u003e The first few fires cure the high-temperature paint and condition the internal components. Burn two or three small fires first, then build bigger, hotter fires until the paint smell is gone. The smell can be strong; ventilate the room well and avoid prolonged exposure during cure-in.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eLighting.\u003c\/strong\u003e Per the manual's EPA loading procedure, place eight small (2\" × 2\") pieces in the firebox crossed at the greatest possible angle, criss-cross 10 to 16 kindling pieces on top in three layers, tie a knot with five sheets of paper and place on top of the kindling, light the paper, and let the door slightly ajar (about 1 minute) until the kindling is fully engaged and the first row of small pieces is lit. Close the door with the air control fully open.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAir control.\u003c\/strong\u003e Single-lever, located underneath the ash shelf. Pull the handle completely toward you to open (HIGH burn rate). Push completely to close (LOW burn rate). Full open at light-off; gradually closed only after the load is fully engaged and stable secondary flames are established. Close the air control by small increments — too fast and the fire smolders.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eReload cadence.\u003c\/strong\u003e 3–4 hours between reloads in active heating use; up to 7 hours for a final overnight pack with the air shut hard. Per the manual's loading procedure, rake remaining charcoal toward the front of the firebox before loading. Place three logs east-west on the coal bed leaving about 1–2 inches of air space between the rear firebrick and the first piece, then two more logs slightly angled on top. Open the air for a minute or two before opening the door, open the door slowly to avoid smoke rollout, load, close the door, and run the air open until the load is fully engaged before reducing gradually. Do not elevate the fire by using a grate.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBurn in cycles, not single-log feeds.\u003c\/strong\u003e The manual is explicit: do not attempt to produce steady heat output by placing a single log on the fire at regular intervals. Always place at least three (preferably more) pieces on the fire at a time so the heat radiated from one piece helps ignite the pieces next to it. Each load should provide several hours of heating.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCarbon monoxide watch.\u003c\/strong\u003e Per the manual, if the firebox no longer shows flame but still contains unburned logs, check outside for smoke from the chimney. Smoke without flame means the fire is air-starved and CO levels are rising. Open the door slightly, move the logs with a poker, create a passage for air by making a trench in the ember bed, and add small kindling-size pieces to restart combustion.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAsh management.\u003c\/strong\u003e Empty ash every 2–3 days during full-time heating. The best time to remove ash is in the morning after an overnight fire when the insert is relatively cool but there is still some chimney draft to draw ash dust into the insert rather than into the room. Always dispose of ash in a tightly covered metal container on a non-combustible surface, well away from combustible materials — ash retains hot embers for days and releases carbon monoxide. Never store ashes indoors, in a non-metallic container, or on a wooden deck.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eGlass cleaning.\u003c\/strong\u003e Damp newspaper dipped in cold ash, or a dedicated ceramic-glass cleaner. Daily wipe during low-burn weather; weekly during high-burn. Black streaks at the lower edge mean wet wood; black uniformly across the glass means burns are running too cool. Brown stains at the lower corners mean smoky combustion. Do not clean the glass when the insert is hot, and do not strike or slam the glass door shut.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eDoor and glass gaskets.\u003c\/strong\u003e Per the manual, the door gasket needs replacement when the paper-strip test fails: close the door on a strip of paper and try to pull it out; firm resistance means the gasket is sealing, easy pull means it's time to replace. Test all the way around the door. The latch mechanism is adjustable — remove the split pin with pliers and turn the handle one counterclockwise turn to increase pressure. Plan on every 3–5 seasons in regular use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAnnual chimney sweep.\u003c\/strong\u003e Per the manual, the chimney liner should be cleaned and inspected at least once each year. Inspect every two months during the heating season until you know your creosote-formation rate; monthly is safer for new burners. If buildup reaches 1\/8 inch, sweep immediately. The baffle and secondary tubes can be removed for sweep access. Insert installations make sweeping more involved than freestanding stoves — many owners hire a CSIA-certified sweep rather than doing it themselves.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWood seasoning.\u003c\/strong\u003e Hardwood needs 12–24 months split, stacked off the ground, top-covered, with sun and wind on the sides. Don't trust supplier \"seasoned\" claims — use a pin-type moisture meter, split a piece in half, measure the fresh face. Manual target: 15–20% moisture. Wood above 25% will smolder, soot the glass, line the chimney with creosote, and undercut every published efficiency and emissions number on this page.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eBlower maintenance.\u003c\/strong\u003e Keep the blower intake and fins free of dust. Vacuum dust accumulation annually. Do not oil the blower unless the manual specifically calls for lubrication. Replacement blowers and related service parts are available through Enerzone\/SBI dealers and parts channels if needed years out.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eRefractory panels and baffle.\u003c\/strong\u003e The intense heat of the fire can cause slight cracks in the refractory panels — minor cracks do not reduce effectiveness. Inspect periodically and replace any wider cracks. The baffle and secondary tubes can be removed for sweep access and inspection. Operation with a cracked or missing baffle may cause unsafe temperatures and voids the warranty.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eChimney fire response.\u003c\/strong\u003e If a chimney fire occurs: close the insert door and the air-intake control, alert occupants, contact the fire department if assistance is needed, use a dry chemical fire extinguisher or baking soda or sand to control the fire (never water — it causes a dangerous steam explosion), and do not use the appliance again until the insert and chimney have been inspected by a qualified chimney sweep or fire-department inspector.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat never to burn.\u003c\/strong\u003e Per the manual and EPA fuel rules: no coal, garbage, yard waste, materials containing rubber or plastic, waste petroleum products, paint or paint thinners, asphalt products, painted or pressure-treated wood, railroad ties, manure or animal remains, plywood, particle board, paper products, asbestos materials, construction or demolition debris, salt-water driftwood, or unseasoned wood. This does not prohibit normal fire starters made from paper, cardboard, sawdust, wax, or similar substances when used only to start a fire. Burning prohibited materials destroys the firebox, voids the warranty, and releases toxic compounds into your home and the chimney. Do not burn manufactured logs made of wax-impregnated sawdust or logs with chemical additives; 100% compressed-sawdust logs can be used with caution but never more than two at a time.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWarranty and service\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cp\u003eThe Enerzone limited lifetime warranty applies to the original retail purchaser only and is non-transferable. The warranty applies to normal residential use only. Proof of purchase (dated bill of sale), model name, and serial number are required for any warranty claim. Online registration is recommended at enerzone-intl.com but not required if a dated invoice is retained.\u003c\/p\u003e\n\n\u003ch3\u003eCoverage by component\u003c\/h3\u003e\n\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eComponent\u003c\/span\u003e\u003cspan\u003eParts\u003c\/span\u003e\u003cspan\u003eLabor\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustion chamber welds, cast-iron door frame\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCeramic glass, plating manufacturing defects\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eSurrounds, heat shields, trims, C-Cast baffle, secondary air tubes\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e7 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHandle assembly, glass retainers, air control mechanism\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e3 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eRemovable carbon-steel firebox components\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eBlower, heat sensors, switches, rheostat, wiring, electronics\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e2 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePaint (peeling), gaskets, insulation, ceramic fiber blankets, and other options\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eReplacement parts under warranty\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e90 d\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin-top: 14px;\"\u003eA one-time replacement limit applies to all parts with lifetime coverage. Warranty is void if the unit is used to burn anything other than seasoned cordwood, or if it is not operated according to the owner's manual. Damage caused by misuse, improper installation, lack of maintenance, overfiring, downdrafts, venting problems, or under-estimated heating area is not covered. Improper installation by anyone other than an authorized qualified technician voids the warranty.\u003c\/p\u003e\n\n\u003cp\u003eWarranty claims are made through your Enerzone dealer and remain subject to SBI\/Enerzone inspection, approval, and the current written warranty. Kaminos is the retailer for this insert and supports buyers through purchase; final warranty approval rests with SBI as the manufacturer.\u003c\/p\u003e\n\n\u003cp class=\"warranty-note\"\u003eEnerzone may require photos or returned parts to support a claim; repair work covered by warranty requires prior manufacturer approval.\u003c\/p\u003e\n\n\u003cp class=\"warranty-note\"\u003eCoverage details can change by component and warranty revision; the current Enerzone warranty controls.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCompare with\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eEnerzone Destination 2.3 Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eSibling on the same SBI chassis — same 2.4 ft³ firebox, same 75,000 BTU\/hr maximum, same 8-hour burn time, same 20-inch log capacity. The differences are the blower and the faceplate aesthetic: the Destination 2.3 uses a 90 CFM blower (vs 144 CFM on the Solution 2.3-I) and ships with a contemporary flush cast-surround faceplate with optional backing-plate kits for larger openings, rather than the Solution 2.3-I's configurable Regular\/Large faceplate with Black or Brushed Nickel trim. Choose the Destination 2.3 for the contemporary flush cast-surround look and quieter blower; choose the Solution 2.3-I for stronger heat distribution via the 144 CFM blower and the configurable trim finish.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eEnerzone Solution 1.7-I Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eStep-down sibling in the Solution insert line. Smaller 1.86 ft³ firebox, 65,000 BTU\/hr maximum, 500–1,800 sq ft heating range, 18-inch log capacity, 7-hour maximum burn. Same Enerzone-tier styling, same 144 CFM blower, smaller masonry opening (21 1\/2\" × 27 1\/2\" × 12 3\/4\"). Choose the Solution 1.7-I for smaller masonry openings, smaller spaces, or as a step-down from the Solution 2.3-I when 1,400+ sq ft heating isn't needed.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eEnerzone Solution 3.5-I Wood Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eStep-up sibling in the Solution insert line. Larger 3.5 ft³ firebox, 110,000 BTU\/hr maximum, 1,000–2,700 sq ft heating range, 22-inch log capacity, 10-hour maximum burn, lower 1.6 g\/hr emissions. Substantially larger masonry opening required (26 1\/4\" × 31\" × 18 3\/8\"). Choose the Solution 3.5-I if you need to heat over 2,100 sq ft, your masonry opening is large enough, or you want longer burn cycles and lower emissions; choose the Solution 2.3-I for a more accessible opening size and balanced footprint.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003ePacific Energy Neo 2.5 Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eCross-brand competitor in the medium-large insert class. Comparable firebox volume and heating area, Pacific Energy's well-regarded sealed-firebox technology with single-lever non-cat operation, premium build, higher price. The most common cross-shop with the Solution 2.3-I for buyers weighing premium Pacific Energy fit-and-finish against the SBI dealer\/parts accessibility and the Enerzone price point.\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cp class=\"pull\"\u003eThe Solution 2.3-I is the medium-large wood insert in the Enerzone line — the sweet spot for buyers with a substantial masonry fireplace and primary-heat needs across 1,400–1,800 sq ft. Built around a 2.4 ft³ firebox, 20-inch log capacity, 8-hour burn cycle, and a 144 CFM heat-activated blower included as standard. Measure the opening, install it right, burn good wood, and it carries you through winter.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Enerzone","offers":[{"title":"Black","offer_id":50196349845697,"sku":"EB00064 + AC01290 + OA10122","price":3529.0,"currency_code":"USD","in_stock":true},{"title":"Brushed Nickel","offer_id":50196349878465,"sku":"EB00064 + AC01290 + OA10123","price":3529.0,"currency_code":"USD","in_stock":true},{"title":"Large Black","offer_id":50196349911233,"sku":"EB00064 + AC01292 + OA10128","price":3634.0,"currency_code":"USD","in_stock":true},{"title":"Large Brushed Nickel","offer_id":50196349944001,"sku":"EB00064 + AC01292 + OA10129","price":3634.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/Untitleddesign_73.webp?v=1778252748"},{"product_id":"enerzone-solution-3-5-wood-insert","title":"Enerzone Solution 3.5 Wood Insert","description":"\u003cstyle\u003e\n  .km-desc, .km-desc * { box-sizing: border-box; max-width: 100%; }\n  .km-desc { width: 100%; }\n  .km-desc p { margin: 0 0 14px; }\n  .km-desc h3 { font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px; font-weight: 600; color: #9B774D; margin: 22px 0 10px; }\n  .km-desc .spec-list { margin: 12px 0 0; }\n  .km-desc .spec-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .spec-row:first-child { border-top: 1px solid rgba(75,72,75,0.35); padding-top: 14px; }\n  .km-desc .spec-label { font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px; font-weight: 600; color: #4B484B; margin-bottom: 6px; }\n  .km-desc .spec-value { font-weight: 600; font-size: 15px; color: #231F20; margin-bottom: 6px; line-height: 1.35; }\n  .km-desc .spec-meaning { color: #4B484B; font-size: 13px; line-height: 1.55; }\n  @media (min-width: 720px) {\n    .km-desc .spec-row { display: grid; grid-template-columns: 38% 30% 1fr; gap: 16px; align-items: start; padding: 12px 0; }\n    .km-desc .spec-label { margin-bottom: 0; align-self: center; }\n    .km-desc .spec-value { margin-bottom: 0; font-size: 14px; align-self: center; }\n    .km-desc .spec-meaning { font-size: 13px; }\n    .km-desc .spec-row:first-child { padding-top: 12px; }\n  }\n  .km-desc .data-row { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; padding: 12px 0; border-bottom: 1px solid rgba(75,72,75,0.12); align-items: baseline; font-size: 13px; }\n  .km-desc .data-head + .data-row { border-top: 1px solid rgba(75,72,75,0.35); }\n  .km-desc .data-row .data-label { color: #4B484B; line-height: 1.4; }\n  .km-desc .data-row .data-val { font-weight: 600; color: #231F20; text-align: right; min-width: 56px; }\n  .km-desc .data-head { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; padding-bottom: 8px; font-size: 10px; text-transform: uppercase; letter-spacing: 1.2px; font-weight: 600; color: #4B484B; }\n  .km-desc .data-head span:nth-child(2), .km-desc .data-head span:nth-child(3) { text-align: right; min-width: 56px; }\n  .km-desc ul { list-style: none; padding: 0; margin: 10px 0 14px; }\n  .km-desc ul li { padding: 4px 0 4px 18px; position: relative; line-height: 1.55; }\n  .km-desc ul li:before { content: \"—\"; position: absolute; left: 0; color: #9B774D; font-weight: 500; }\n  .km-desc .compare-row { padding: 14px 0; border-bottom: 1px solid rgba(75,72,75,0.12); }\n  .km-desc .compare-row:last-child { border-bottom: 0; }\n  .km-desc .compare-name { font-weight: 600; color: #231F20; display: inline-block; padding-bottom: 1px; }\n  .km-desc .compare-orient { color: #4B484B; margin-top: 4px; font-size: 13px; line-height: 1.5; }\n  .km-desc .pull { font-style: italic; font-size: clamp(16px, 4.2vw, 22px); line-height: 1.4; color: #231F20; border-left: 2px solid #9B774D; padding: 0 0 0 16px; margin: 32px 0 16px; }\n  .km-desc .lede { font-size: clamp(16px, 4vw, 22px); line-height: 1.4; letter-spacing: -0.2px; font-weight: 400; color: #231F20; margin: 0 0 24px; }\n  .km-desc .warranty-note { font-size: 12px; color: #4B484B; font-style: italic; margin-top: 14px; }\n  .km-desc details { border-top: 1px solid rgba(75,72,75,0.18); margin: 0; padding: 0; }\n  .km-desc details:last-of-type { border-bottom: 1px solid rgba(75,72,75,0.18); }\n  .km-desc details \u003e summary { list-style: none; cursor: pointer; padding: 18px 32px 18px 0; position: relative; font-size: clamp(16px, 4.2vw, 20px); line-height: 1.3; font-weight: 500; color: #231F20; letter-spacing: -0.2px; }\n  .km-desc details \u003e summary::-webkit-details-marker { display: none; }\n  .km-desc details \u003e summary::after { content: \"+\"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-size: 22px; font-weight: 300; color: #9B774D; line-height: 1; }\n  .km-desc details[open] \u003e summary::after { content: \"−\"; }\n  .km-desc details \u003e summary:focus-visible { outline: 2px solid #9B774D; outline-offset: 4px; }\n  .km-desc details \u003e .acc-body { padding: 0 0 28px 0; }\n\u003c\/style\u003e\n\u003cdiv style=\"font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #231f20; line-height: 1.55; width: 100%; max-width: 100%; box-sizing: border-box; margin: 0; padding: 0; font-size: 16px; overflow-wrap: break-word; word-wrap: break-word; word-break: normal;\"\u003e\n\u003cdiv class=\"km-desc\"\u003e\n\u003cp class=\"lede\"\u003eA 3.5 ft³ non-catalytic steel wood insert designed to slide into a large existing masonry fireplace with a 26 1\/4\" × 31\" × 18 3\/8\" minimum opening. EPA 2020 cordwood certified at 71% HHV efficiency, with a 144 CFM included blower and a 22-inch maximum east-west log capacity. Configurable faceplate size: 32\" × 44\" or 32\" × 50\", with matching faceplate trim in Black or Brushed Nickel. The largest non-catalytic insert in the Enerzone lineup.\u003c\/p\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eWho this is for\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003ch3\u003eRight buyer\u003c\/h3\u003e\n\u003cp\u003eOwners of a large existing masonry fireplace who want serious primary heat output instead of a decorative open fire — single-family homes, well-insulated cabins, or open-plan spaces of roughly 1,500–2,400 sq ft, with reasonable insulation and access to seasoned hardwood at 15–20% moisture content.\u003c\/p\u003e\n\u003cp\u003eSuited to homeowners whose existing masonry opening is large enough to accept a 26 1\/4\" tall × 31\" wide × 18 3\/8\" deep minimum footprint — meaningfully larger than what most small inserts require. The 22-inch maximum log capacity, 144 CFM included blower, and 3.5 ft³ firebox put this in serious primary-heat territory, not supplemental.\u003c\/p\u003e\n\u003cp\u003eBuyers who want a finished install with their choice of faceplate sizing and trim color: 32\" × 44\" for moderate-sized openings, 32\" × 50\" for larger openings, with matching faceplate trim in Black or Brushed Nickel. The faceplate ships with the unit; configuration is selected at order.\u003c\/p\u003e\n\u003ch3\u003eWrong buyer\u003c\/h3\u003e\n\u003cp\u003eNot for buyers with smaller hearths. The 31-inch minimum width alone excludes a substantial percentage of older masonry fireplaces — measure before buying. If your opening is borderline, the smaller Destination 1.9 (25-inch minimum width) is the right tool.\u003c\/p\u003e\n\u003cp\u003eNot for buyers who want set-and-forget heating. Wood-burning inserts require active operation: lighting, monitoring, closing the air at the right moment, deciding when to reload. The 3.5 ft³ firebox can leave usable coals after a long burn, but do not expect steady, high output through an entire night.\u003c\/p\u003e\n\u003cp\u003eNot for buyers expecting 14–20+ hour overnight burns. Non-catalytic stoves give you 6–8 hours of useful heat from a packed firebox of dense hardwood, occasionally approaching the 10-hour manufacturer maximum with mild weather and a full coal bed; for longer burns, a catalytic or hybrid insert is the right tool.\u003c\/p\u003e\n\u003cp\u003eNot for small spaces under 1,200 sq ft — at this firebox volume the insert can easily overheat the room at any meaningful burn rate, forcing low burns that smolder, blacken the glass, and produce creosote.\u003c\/p\u003e\n\u003cp\u003eNot for prefab metal fireplaces — those need a different appliance entirely. Not approved for mobile-home or alcove installation.\u003c\/p\u003e\n\u003cp\u003eNot for buyers without a code-compliant masonry fireplace and chimney. The Solution 3.5 Insert requires a continuous 6-inch listed stainless-steel liner from the insert to the top of the chimney; that liner and its installation are not included in the appliance price.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAt a glance\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cdiv class=\"spec-list\"\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion technology\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eNon-catalytic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eSecondary-air tubes reignite smoke gases. No catalyst to replace; one air-control lever; simpler operation than a cat insert but shorter low-and-slow burn times.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eInstallation type\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMasonry insert\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInstalls inside an existing code-compliant masonry fireplace with a continuous stainless-steel chimney liner. Not approved for factory-built fireplaces, mobile homes, alcoves, or freestanding installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFirebox volume\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e3.5 ft³ overall \/ 2.88 ft³ EPA\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eAmong the larger non-cat insert fireboxes on the market. Loads up to 50 lb of cordwood when packed.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum heat output\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e110,000 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePeak output on dry cordwood, transient. Sustained output across a burn cycle is substantially lower.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eTested output range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e17,200–57,800 BTU\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer CSA B415.1-10 stack-loss method. The realistic operating band buyers should plan around.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eHeating range\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e1,000–2,700 sq ft\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer's stated range. Real-world comfort sizing for primary heat is roughly 1,500–2,400 sq ft in moderate climates and lower in cold climates or older homes — depends on insulation, layout, climate, ceiling height, fuel quality, and installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eAverage efficiency\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e71% HHV \/ 76% LHV\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003e77% optimum efficiency at low burn rate (LHV). HHV is the federal standard. Government incentives may apply by jurisdiction and installation date.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eParticulate emissions\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e1.6 g\/hr\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eEPA 2020 limits are 2.0 g\/hr crib-wood or 2.5 g\/hr cordwood. The insert is listed as compliant with the 2020 cordwood standard.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum burn time\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUp to 10 hours\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufacturer maximum from a packed load of dry hardwood with the air shut down hard. Useful heat through a burn cycle is realistically 6–8 hours.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eRecommended log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e16 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Most firewood suppliers cut to this length.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMaximum log length\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e22 in east-west\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eLonger logs go east-west (sides visible). Shorter splits can be loaded over depth, north-south, which most owners prefer for overnight loads.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eConstruction\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eCarbon steel, cast-iron door\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eWelded carbon-steel firebox with a cast-iron arched door frame. Lifetime warranty on the combustion-chamber welds.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBaffle\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eC-Cast\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eRigid aluminosilicate fiber baffle rated above 2,000 °F.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eGlass\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e18 3\/4\" × 12 1\/2\", ceramic\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eLarge arched ceramic glass, 5\/32\" (4 mm) thick, with air-wash. Substantial viewing area for the firebox class.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBlower\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eUp to 144 CFM, included\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eVariable-speed crossflow blower (HI \/ LO \/ OFF) with included thermodisc heat sensor for automatic on\/off based on insert temperature. Per the manual, the blower can deliver up to about a 2% efficiency boost when used regularly.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFlue connection\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e6 in\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eTop of the unit. Requires a continuous 6-inch listed stainless-steel chimney liner to the top of the chimney. Per manual, minimum chimney height 15 feet. Sold separately.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCombustion chamber\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e22 7\/8\" W × 20 1\/8\" D × 12 7\/8\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eInside firebox dimensions per manual. Loading supported both over width (E-W) and over depth (N-S) for appropriately sized logs.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDoor opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e19\" W × 10 5\/8\" H\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eLoading door opening. Accommodates 22-inch logs loaded east-west.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMinimum masonry opening\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e26 1\/4\" H × 31\" W × 18 3\/8\" D\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePer manual. Substantial opening required — measure carefully before ordering. See \"Where it can go\" for faceplate options.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eShipping weight\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e562 lb\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003ePlan for multi-person handling. Remove loose internal components as appropriate during installation to reduce handling weight.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-row\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCountry of origin\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMade in Canada\u003c\/div\u003e\n\u003cdiv class=\"spec-meaning\"\u003eManufactured by Stove Builder International (SBI) in Saint-Augustin-de-Desmaures, Quebec.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhere it can go\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cp\u003eThe Solution 3.5 Insert is designed to slide into an existing code-compliant masonry fireplace with a connected and inspected masonry chimney. It is not approved for installation in a factory-built (prefab) metal fireplace, in a mobile home, in any outdoor or unconditioned space, or as a freestanding stove.\u003c\/p\u003e\n\u003ch3\u003eMinimum masonry opening\u003c\/h3\u003e\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eDimension\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHeight\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e26 1\/4\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eWidth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e31\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eDepth\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e18 3\/8\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 14px;\"\u003eIf a fresh-air intake is being installed, add at least 4 inches to the width. Plan for a small installation margin above the insert to seat the liner adapter — an opening exactly at the minimum will be a tight install. Measure carefully before ordering.\u003c\/p\u003e\n\u003ch3\u003eFaceplate options\u003c\/h3\u003e\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eConfiguration\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eSize\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eRegular faceplate\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e32\" × 44\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eLarge faceplate\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e32\" × 50\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 14px;\"\u003eFaceplate frame and trim are configured together at order. Each size is available in Black or Brushed Nickel trim. The Regular faceplate fits moderate-sized openings; the Large extends the cover area for larger openings.\u003c\/p\u003e\n\u003ch3\u003eClearances to combustibles\u003c\/h3\u003e\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eSurface\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMin\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eAdjacent combustible side wall\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e19\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eFaceplate to combustible side or top surround\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e9\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible mantel shelf\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible top surround projection\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e27\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePlatform \/ floor protection to ceiling\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e84\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-head\" style=\"margin-top: 18px;\"\u003e\n\u003cspan\u003eSurface\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eMax thickness\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible side surround\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustible mantel shelf projection\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e12\"\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 14px;\"\u003eReduced clearances are not available by means of heat shields on this insert — the figures above are the binding minimums.\u003c\/p\u003e\n\u003ch3\u003eFloor protection\u003c\/h3\u003e\n\u003cp\u003eThe hearth extension must be a continuous non-combustible surface in front of the door opening. In the USA, floor protection is measured from the door opening and must follow the manual's hearth-extension calculation; in Canada, 18 inches forward and 8 inches each side are typical requirements, subject to the manual notes and local code. Tile alone is not sufficient — the manual requires a continuous non-combustible sheet beneath any tile installation. If the existing masonry hearth extension is long enough, additional floor protection may not be needed. If added floor protection is required in front of a hearth that is level with, or raised 5 inches or less above, the combustible floor, the added protection must meet the manual's R-value requirement. If the masonry hearth is raised more than 5 inches, standard non-combustible ember protection may be sufficient. Final hearth protection must be calculated from the manual's floor-protection worksheet and approved by the installer\/AHJ.\u003c\/p\u003e\n\u003ch3\u003eChimney and liner\u003c\/h3\u003e\n\u003cp\u003eThe Solution 3.5 Insert requires a continuous 6-inch stainless-steel chimney liner extending from the insert flue collar to the top of the chimney. The liner must conform to ULC S635 or CAN\/ULC-S640 (Canada) or UL 1777 (USA) and be rated for solid fuel. The minimum liner height is 15 feet, subject to installer verification, certification label, draft conditions, and local code. The chimney must extend at least 3 feet above the highest point of contact with the roof and at least 2 feet above any roof line or obstacle within 10 feet horizontally.\u003c\/p\u003e\n\u003cp\u003eThe insert is not approved for a \"positive flue connection\" to clay tile — a continuous stainless liner is required.\u003c\/p\u003e\n\u003cp\u003eAn insulated liner (or pre-insulated liner with a 1\/2-inch wrap) is strongly recommended even for interior chimneys. It improves draft, reduces creosote, and is required by code in some jurisdictions for clearance reasons. A sheet-metal block-off plate sealed at the damper level with high-temp silicone and backed with mineral wool insulation is likewise optional under code but effectively required in practice for the insert to deliver rated performance — without it, jacket-recovered heat is lost into the smoke chamber.\u003c\/p\u003e\n\u003ch3\u003eOutside air\u003c\/h3\u003e\n\u003cp\u003eAn optional fresh-air intake kit is available for code jurisdictions requiring outside combustion air, or for tight new-construction homes with mechanical ventilation. In conventional homes the manual identifies room air as the safest and most reliable supply for combustion; almost all houses have enough natural leakage to provide what the insert needs. A smoke detector and carbon monoxide detector are required in the room where the insert is installed.\u003c\/p\u003e\n\u003ch3\u003eCode compliance\u003c\/h3\u003e\n\u003cp\u003eCode compliance for any specific installation is determined by the local Authority Having Jurisdiction. Manufacturer listings cover what the insert is approved for; the AHJ approves what is permitted at your address. A WETT (Canada), NFI, or CSIA (USA) certified installer is strongly recommended and frequently required by code, permit, or insurance. Confirm local requirements before purchasing — particularly in EPA non-attainment counties and in HOA jurisdictions where new wood-burning installs may be restricted.\u003c\/p\u003e\n\u003ch3\u003eCalifornia Proposition 65\u003c\/h3\u003e\n\u003cp\u003eThis product can expose you to chemicals including carbon monoxide, which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to www.P65warnings.ca.gov.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat's in the box, what you'll add\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003ch3\u003eShips with the insert\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSolution 3.5 Insert (EB00062) with welded carbon-steel firebox and cast-iron arched door\u003c\/li\u003e\n\u003cli\u003eFaceplate frame and trim, configured together at order — see \"Where it can go\" for options\u003c\/li\u003e\n\u003cli\u003e144 CFM variable-speed crossflow blower with included thermodisc heat sensor for automatic on\/off\u003c\/li\u003e\n\u003cli\u003eAsh lip\u003c\/li\u003e\n\u003cli\u003eC-Cast baffle and stainless-steel secondary-air tube assembly\u003c\/li\u003e\n\u003cli\u003eRefractory firebrick lining\u003c\/li\u003e\n\u003cli\u003eRemovable wood-grip air-control handle\u003c\/li\u003e\n\u003cli\u003eOwner's manual and product documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSold separately\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e6-inch stainless-steel chimney liner sized for the full height of the chimney, with appliance connector, top plate, and rain cap — required, not optional\u003c\/li\u003e\n\u003cli\u003eOptional offset liner adapter (SBI AC01214) — for installations where the masonry flue is offset from the insert\u003c\/li\u003e\n\u003cli\u003eOptional liner hook-up system (SBI AC02006) — simplifies liner-to-flue-collar connection\u003c\/li\u003e\n\u003cli\u003eInsulation wrap for the liner (or a pre-insulated liner) — strongly recommended for all installs, code-required in some\u003c\/li\u003e\n\u003cli\u003eSheet-metal block-off plate, high-temp silicone, and mineral wool insulation — effectively required in practice for the insert to deliver rated performance\u003c\/li\u003e\n\u003cli\u003eHearth pad or hearth extension sized to manual specifications, with continuous non-combustible sheet beneath any tile\u003c\/li\u003e\n\u003cli\u003eOptional tempered glass hearth pad 10mm 18\" × 50\" (SBI AC02760)\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch fresh-air intake kit (SBI AC01298) — for code jurisdictions requiring outside combustion air or for tight new-construction homes\u003c\/li\u003e\n\u003cli\u003eOptional 5-inch × 4' insulated flex pipe for fresh-air intake (SBI AC02090) — HVAC type, ULC S110 or UL 181 class 0 or class 1\u003c\/li\u003e\n\u003cli\u003eOptional rigid fire screen (SBI AC01281) — not permitted for open-door use in the United States or in Canadian provinces\/jurisdictions with particulate-emission limits; never leave the insert unattended when used with a fire screen\u003c\/li\u003e\n\u003cli\u003ePin-type wood moisture meter — not optional in practice\u003c\/li\u003e\n\u003cli\u003eFlue thermometer or installer-recommended temperature-monitoring method — strongly recommended; not optional in practice\u003c\/li\u003e\n\u003cli\u003eInstallation by an authorized qualified technician (WETT, NFI, or CSIA certified) — required for warranty coverage and often required by code, permit, or insurance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow it actually performs\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cp\u003eThe 110,000 BTU\/hr figure is a maximum-output rating based on dry cordwood at high loading density and short reload intervals. It is real, but it is a peak rating, not the average output across a full burn cycle of normal operation. The figure that matters for daily life is the sustained output across a full burn cycle, which lands in a 25,000–55,000 BTU\/hr band depending on wood density, moisture, and air setting.\u003c\/p\u003e\n\u003cp\u003eA realistic burn cycle from owner reports in cold-climate primary use: a packed load of well-seasoned hardwood produces a fast 30-minute warm-up to high firebox temperatures, then 2–3 hours of strong sustained heat, then a slow decline over the next several hours, then several more hours of low steady heat with a heavy coal bed. Total useful heat from one full pack: 6–9 hours in normal heating use, occasionally approaching the 10-hour manufacturer maximum with dense hardwood, mild weather, and a full coal bed. Reload onto coals when heat output falls off and the cycle restarts.\u003c\/p\u003e\n\u003cp\u003eThe 22-inch maximum log capacity is a practical advantage. Most firewood suppliers cut to 16 inches, which is also the manual's recommended length. An insert that takes up to 22 inches lets you load larger splits with less labor when your supplier cuts longer. The firebox accommodates substantial north-south loads — owners regularly fit 8–10 medium splits N-S for overnight burns.\u003c\/p\u003e\n\u003cp\u003eThe included 144 CFM blower meaningfully improves heat transfer from the air jacket into the room. There are two controls: a manual rheostat marked HI \/ LO \/ OFF that you set, and an automatic heat sensor (thermodisc) that decides when the blower actually runs. Set the rheostat to LO or HI, and the sensor handles the rest — the insert takes about an hour to reach blower-activation temperature from a cold start, then the sensor starts the blower automatically and shuts it off when the insert cools at the end of a burn. No need to remember to start it once the fire is going or shut it off when the fire dies down. At lower settings the blower is unobtrusive; at higher settings it is audible. Per the manual, regular blower use can deliver up to about a 2% efficiency boost. Without the blower — in a power outage, for example — the insert will still burn safely; the room will receive less convective heat transfer, with most of the available heat being radiant through the glass.\u003c\/p\u003e\n\u003cp\u003eAir-wash glass stays largely clear during proper hot burns at moderate-to-high air settings. At low burn rates with marginally seasoned wood, the glass will tar. This is universal to non-catalytic tube inserts, not specific to Enerzone, and it is the strongest signal that your wood is too wet or your burn is too cool.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eTrade-offs to know\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cp\u003e\u003cstrong\u003eThe opening is the gating factor.\u003c\/strong\u003e The 26 1\/4\" × 31\" × 18 3\/8\" minimum masonry opening is meaningfully larger than the smaller Enerzone inserts. The 31-inch minimum width in particular excludes a substantial percentage of older masonry fireplaces. Measure carefully before buying — and if the opening is borderline, the smaller Destination 1.9 (25-inch minimum width) is the right tool.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNon-catalytic burn time.\u003c\/strong\u003e A non-cat insert gives you simpler operation and no catalyst to replace, but you pay for it with shorter burns. If you want to load at 9 PM and have meaningful heat at 6 AM, this is not the right tool — that is what a Blaze King Princess Insert or Lopi Cape Cod is built for. Plan on reloading every 4–6 hours during active heating and accepting that overnight will end at coals.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWood loading is a daily activity.\u003c\/strong\u003e A full load of dense hardwood is heavy and physically involved; in cold-climate primary-use patterns, wood handling becomes a daily chore, not an occasional task. Wood has to be split, stacked off the ground, top-covered, and seasoned to 15–20% moisture before use. Most local firewood suppliers can deliver hardwood by the cord; confirm whether they sell genuinely seasoned wood or plan to season it yourself.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReload technique matters.\u003c\/strong\u003e Reload onto an active coal bed, open the air fully before opening the door, and open the door slowly to avoid smoke rollout. After reloading, run the air open until the new load is fully engaged, then reduce the air gradually. Do not leave the insert unattended with the door partly open; the manual treats door-ajar operation as a lighting\/reloading procedure, not a normal burn mode.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGlass blackens at low burn rates.\u003c\/strong\u003e This is the non-cat tube design — secondary combustion only burns clean at higher temperatures. The fix is a daily hot burn cycle to clean off accumulated tar, dry wood at 20% moisture or below, and tolerance for a brief cleaning every few days during low-and-slow weather.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLiner, block-off plate, and labor are not in the appliance price.\u003c\/strong\u003e The insert is the appliance; the chimney liner, the block-off plate, the insulation wrap, and the professional installation are separate purchases that need to be planned for. Older or taller chimneys, offset flues, and damper-frame removal add to install complexity. Skipping the liner, the block-off plate, or the insulation wrap saves money up front and costs measurable performance and creosote durability after.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlain Enerzone styling.\u003c\/strong\u003e The Solution 3.5 Insert has clean, simple lines: a cast-iron arched door, a steel jacket, and a faceplate that flashes around the masonry opening. It is not ornate. Buyers who want premium cast-iron decorative faceplate detailing should look at Osburn's larger inserts or premium-tier options like Lopi Cape Cod.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHeavy-duty internals, functional finish.\u003c\/strong\u003e The welded carbon-steel firebox, C-Cast baffle, lifetime weld warranty, and 144 CFM blower are strong points for the category. The overall fit-and-finish is practical rather than luxury: this is a heating appliance first, not a furniture-grade cast-iron showpiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eOperating reality\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cp\u003e\u003cstrong\u003eFirst burns.\u003c\/strong\u003e The first three to six fires release paint VOCs as the high-temperature stove paint cures. The smell can be strong; ventilate the room well and avoid prolonged exposure during cure-in. Run the insert hot and expect the smell to disappear permanently after the cure-in.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLighting.\u003c\/strong\u003e The manual describes three effective methods: conventional (newspaper at the bottom, kindling on top, then small splits), top-down (small splits at the base, smaller splits crossed over, kindling on top, paper at the very top, light the top), or two parallel logs (paper between two split logs, kindling across, log-cabin style). Cleaner ignition with the top-down method, less smoke, faster to operating temperature. Leave the door slightly ajar for a few minutes during light-off; close once the fire is well established.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAir control.\u003c\/strong\u003e Single-lever, located underneath the ash shelf. Pull the handle completely (HIGH) to open, push completely (LOW) to close. Full open at light-off, gradually closed only after the load is fully engaged and stable secondary flames are established. Close the air control only when the firebox is full of bright turbulent flames, the wood is charred, and its edges are glowing. A flue thermometer is strongly recommended; without one, you are guessing at draft, burn rate, and overfire risk. Do not elevate the fire by using a grate.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReload cadence.\u003c\/strong\u003e 4–6 hours between reloads in active high-output use; 6–8 hours for a final overnight pack with the air shut hard. Open the air, wait briefly, open the door slowly to avoid smoke rollout, rake coals forward, load onto the coal bed, close the door, and run the air open until the new load is fully engaged before reducing the air gradually. Turn the blower OFF before opening the door fully to reduce ash disturbance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAsh management.\u003c\/strong\u003e Ash should be removed from the firebox every two to three days of full-time heating. The best time to remove ash is in the morning, after an overnight fire when the insert is relatively cold but there is still a little chimney draft to draw the ash dust into the insert and prevent going out into the room. Always dispose of ash in a tightly covered metal container on a non-combustible surface, well away from combustible materials — ash retains hot embers for days.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGlass cleaning.\u003c\/strong\u003e Damp newspaper dipped in cold ash, or a dedicated ceramic-glass cleaner. Daily wipe during low-burn weather; weekly during high-burn. Black streaks at the lower edge mean wet wood; black uniformly across the glass means burns are running too cool.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoor and glass gaskets.\u003c\/strong\u003e The door gasket needs replacement when the paper-strip test fails: close the door on a strip of paper and try to pull it out; firm resistance means the gasket is sealing, easy pull means it's time to replace. Test all the way around the door, not just at the latch. Glass gasket replaces likewise. Materials run $20–$40 per gasket; replacement is a 30-minute job. Plan on every 3–5 seasons in regular use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAnnual chimney sweep.\u003c\/strong\u003e Per the manual, the chimney and liner should be cleaned and inspected at least once each year. Inspect every two months during the heating season until you know your creosote-formation rate. If buildup reaches 1\/8 inch, sweep immediately. The baffle and secondary tubes lift out for sweep access.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWood seasoning.\u003c\/strong\u003e Hardwood needs 12–24 months split, stacked off the ground, top-covered, with sun and wind on the sides. Don't trust supplier \"seasoned\" claims — use a pin-type moisture meter, split a piece in half, measure the fresh face. Manual target: 15–20% moisture. Wood above 25% will smolder, soot the glass, line the chimney with creosote, and undercut every published efficiency and emissions number on this page.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBlower maintenance.\u003c\/strong\u003e Vacuum the blower fins annually. Do not oil the blower unless the manual specifically calls for lubrication. Replacement blowers and related service parts are available through Enerzone\/SBI dealers and parts channels if needed years out.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat never to burn.\u003c\/strong\u003e Per the manual and EPA fuel rules: no coal, garbage, yard waste, materials containing rubber or plastic, waste petroleum products, paint or paint thinners, asphalt products, painted or pressure-treated wood, railroad ties, manure or animal remains, plywood, particle board, paper products, asbestos materials, construction or demolition debris, salt-water driftwood, or unseasoned wood. This does not prohibit normal fire starters made from paper, cardboard, sawdust, wax, or similar substances when used only to start a fire. Burning prohibited materials destroys the firebox, voids the warranty, and releases toxic compounds into your home and the chimney.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWarranty and service\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cp\u003eThe Enerzone limited lifetime warranty applies to the original retail purchaser only and is non-transferable. The warranty applies to normal residential use only. Proof of purchase (dated bill of sale), model name, and serial number are required for any warranty claim. Online registration is recommended at enerzone-intl.com but not required if a dated invoice is retained.\u003c\/p\u003e\n\u003ch3\u003eCoverage by component\u003c\/h3\u003e\n\u003cdiv class=\"data-head\"\u003e\n\u003cspan\u003eComponent\u003c\/span\u003e\u003cspan\u003eParts\u003c\/span\u003e\u003cspan\u003eLabor\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCombustion chamber welds, cast-iron door frame\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCeramic glass, plating manufacturing defects, convector air-mate\u003c\/span\u003e\u003cspan class=\"data-val\"\u003eLifetime\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eSurrounds, heat shields, ash shelf, faceplate, C-Cast baffle, secondary air tubes\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e7 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eHandle assembly, glass retainers, air control mechanism\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e3 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eCarbon-steel firebox components\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e5 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eBlower, heat sensors, switches, rheostat, wiring, electronics\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e2 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003ePaint (peeling), gaskets, insulation, ceramic fiber blankets, and other options\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e1 yr\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"data-row\"\u003e\n\u003cspan class=\"data-label\"\u003eReplacement parts under warranty\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e90 d\u003c\/span\u003e\u003cspan class=\"data-val\"\u003e—\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin-top: 14px;\"\u003eA one-time replacement limit applies to all parts with lifetime coverage. Warranty is void if the unit is used to burn anything other than seasoned cordwood, or if it is not operated according to the owner's manual. Damage caused by misuse, improper installation, lack of maintenance, overfiring, downdrafts, venting problems, or under-estimated heating area is not covered. Improper installation by anyone other than an authorized qualified technician voids the warranty.\u003c\/p\u003e\n\u003cp\u003eWarranty claims are made through your Enerzone dealer and remain subject to SBI\/Enerzone inspection, approval, and the current written warranty. Kaminos is the retailer for this insert and supports buyers through purchase; final warranty approval rests with SBI as the manufacturer. SBI's parts network is well-stocked — replacement bricks, baffle, secondary tubes, glass, gaskets, and blower are openly available at fair prices through multiple parts vendors.\u003c\/p\u003e\n\u003cp class=\"warranty-note\"\u003eEnerzone may require photos or returned parts to support a claim; repair work covered by warranty requires prior manufacturer approval.\u003c\/p\u003e\n\u003cp class=\"warranty-note\"\u003eCoverage details can change by component and warranty revision; the current Enerzone warranty controls.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCompare with\u003c\/summary\u003e\n\u003cdiv class=\"acc-body\"\u003e\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eOsburn 3500 Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eMechanically identical SBI chassis — same firebox, same 144 CFM blower, same baffle, same warranty schedule, same masonry opening minimums. The Osburn 3500 Insert adds a configurable cast-iron door overlay (Black or Brushed Nickel) on top of the trim\/faceplate choices and is positioned in the Osburn premium tier. Choose the Osburn version if you prefer the door overlay configurability and premium positioning; choose the Solution 3.5 Insert for the same heat at the Enerzone price point.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eEnerzone Destination 1.9\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eThe smaller sibling in the Enerzone insert lineup. 1.1 ft³ firebox, 90 CFM blower, 19\" × 25\" × 15.5\" minimum masonry opening — fits openings the Solution 3.5 Insert won't. Choose the Destination 1.9 for one-room or one-zone heating in 500–900 sq ft; choose the Solution 3.5 Insert for primary heat in 1,500–2,400 sq ft.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003ePacific Energy Summit Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eCross-brand competitor in the same size class. Up to 3,000 sq ft heating range, 2.4 ft³ firebox, premium build, sealed-firebox technology, well-regarded operation and draft tolerance. The most-mentioned cross-shop on hearth-enthusiast forums when buyers compare to the Solution 3.5 Insert. Higher price; longer real-world burn potential.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eBlaze King Princess Insert (catalytic)\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003eDifferent category — catalytic technology, thermostatic air control, and 12–30 hour low-output burn potential. Choose this if your priority is overnight burn time, controllability, or off-grid heating with fewer reloads. Higher price, requires catalyst monitoring and eventual replacement, longer learning curve. The Solution 3.5 Insert wins on simplicity, peak heat output, and dealer\/parts accessibility.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"compare-row\"\u003e\n\u003cspan class=\"compare-name\"\u003eLopi Cape Cod Insert\u003c\/span\u003e\n\u003cdiv class=\"compare-orient\"\u003ePremium hybrid-catalytic insert in the same heating-area class. More technology, higher price, longer burn potential than the Solution 3.5 Insert. USA-made, premium fit and finish. Choose this for premium aesthetics and longer burns; choose the Solution 3.5 Insert for simpler operation, lower up-front cost, and Canadian-made SBI dealer\/parts accessibility.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cp class=\"pull\"\u003eThe Solution 3.5 Insert is the largest non-cat insert in the Enerzone line. If your masonry opening is big enough to take it, your winters are hard, and you want serious primary heat without the catalyst learning curve, this is the version that heats most.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Enerzone","offers":[{"title":"Black","offer_id":50196462305473,"sku":"EB00062+AC01229+OA10125","price":4279.0,"currency_code":"USD","in_stock":true},{"title":"Brushed Nickel","offer_id":50196462338241,"sku":"EB00062+AC01229+OA10126","price":4279.0,"currency_code":"USD","in_stock":true},{"title":"Large Black","offer_id":50196462371009,"sku":"EB00062+AC01273+OA10128","price":4334.0,"currency_code":"USD","in_stock":true},{"title":"Large Brushed Nickel","offer_id":50196462403777,"sku":"EB00062+AC01273+OA10129","price":4334.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/Enerzone_Solution_3.5_Wood_Insert_life_Style_Kaminos_Regular_Black.webp?v=1778611279"},{"product_id":"englander-blue-ridge-150-i-wood-insert","title":"Englander Blue Ridge 150-I Wood Insert","description":"\u003cp data-start=\"0\" data-end=\"321\"\u003eThe Englander Blue Ridge 150-I Wood Insert is a compact, high-efficiency wood-burning insert designed to upgrade an existing masonry fireplace. Its large ceramic glass viewing area gives you a clear, panoramic view of the flames, while the tapered top and sides help it fit into smaller hearth openings.\u003c\/p\u003e\n\u003cp data-start=\"323\" data-end=\"768\"\u003eEPA 2020 certified and non-catalytic, the Blue Ridge 150-I is designed for dry cordwood and heats up to 1,200 square feet. It features a 1.1 cu. ft. firebox, up to 45,000 BTU\/h maximum heat output, up to 7 hours of burn time, high-density refractory bricks, a cast iron door, a glass air-wash system, and an included 90 CFM blower. The deep firebox bottom helps ash collect below the burn area, reducing how often the insert needs to be cleaned.\u003c\/p\u003e","brand":"Englander","offers":[{"title":"Default Title","offer_id":50236149989569,"sku":"ESW0006","price":1589.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/Englander_Blue_Ridge_150-I_Wood_Insert_2.webp?v=1778854249"},{"product_id":"century-heating-cw2100-wood-insert","title":"Century Heating CW2100 Wood Insert","description":"\u003cp data-start=\"0\" data-end=\"321\"\u003eThe Century Heating CW2100 CB00027 Wood Insert is a compact, high-efficiency insert designed to bring real wood-burning heat to smaller masonry fireplaces. Its tapered top and sides help it fit tighter hearth openings, while the cast iron door and ceramic glass give homeowners a clean view of the fire.\u003c\/p\u003e\n\u003cp data-start=\"323\" data-end=\"808\"\u003eEPA 2020 approved and non-catalytic, the CW2100 is designed for dry cordwood and heats up to 1,200 square feet. It features a 1.1 cu. ft. firebox, up to 45,000 BTU\/h maximum heat output, up to 7 hours of burn time, molded high-density refractory panels, a glass air-wash system, and stainless-steel secondary-air system. A 26\" x 42\" faceplate, air intake damper, and 90 CFM blower with thermodisc are included for a complete finished installation. \u003cspan class=\"\" data-state=\"delayed-open\" aria-describedby=\"radix-_r_1bm_\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"810\" data-end=\"994\"\u003e \u003c\/p\u003e","brand":"Century Heating","offers":[{"title":"None","offer_id":50267089436865,"sku":"CB00027","price":1549.0,"currency_code":"USD","in_stock":true},{"title":"25 inch","offer_id":50267089469633,"sku":"CB00027K","price":1799.0,"currency_code":"USD","in_stock":true},{"title":"35 inch","offer_id":50267089502401,"sku":"CB00027K3","price":1899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/Century_Heating_CW2100_Wood_Insert_Kaminos_3.webp?v=1778855647"},{"product_id":"englander-blue-ridge-300-i-wood-insert","title":"Englander Blue Ridge 300-I Wood Insert","description":"\u003cp data-start=\"0\" data-end=\"371\"\u003eThe Englander Blue Ridge 300-I ESW0009 Wood Insert is a high-efficiency insert designed to upgrade an existing masonry fireplace with real wood-burning heat. Its single cast iron framed door and ceramic glass viewing area provide a clean view of the flames, while the spring faceplate adjustment system helps the insert adapt to different hearth setups.\u003c\/p\u003e\n\u003cp data-start=\"373\" data-end=\"868\"\u003eEPA 2020 approved and non-catalytic, the Blue Ridge 300-I is designed for dry cordwood and offers a heating area of 500 to 2,100 square feet. It features a 2.4 cu. ft. firebox, up to 75,000 BTU\/h maximum heat output, up to 8 hours of burn time, refractory brick lining, a glass air-wash system, stainless-steel secondary-air system, and room for logs up to 20 inches. A 34\" x 50\" faceplate, air intake damper, and 144 CFM blower with thermodisc are included for a complete finished installation.\u003c\/p\u003e","brand":"Englander","offers":[{"title":"Default Title","offer_id":50236879012033,"sku":"ESW0009","price":1799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/Englander_Blue_Ridge_300-I_Wood_Insert_Kaminos_3.webp?v=1778857854"},{"product_id":"century-heating-cw2800-wood-insert","title":"Century Heating CW2800 Wood Insert","description":"\u003cp data-start=\"0\" data-end=\"329\"\u003eThe Century Heating CW2800 CB00030 Wood Insert is a mid-size, high-efficiency insert designed to upgrade an existing masonry fireplace with real wood-burning heat. Its cast iron door and ceramic glass viewing area create a clean view of the flames, while the included faceplate helps complete the built-in look.\u003c\/p\u003e\n\u003cp data-start=\"331\" data-end=\"819\"\u003eEPA 2020 approved and non-catalytic, the CW2800 is designed for dry cordwood and offers a heating area of 1,500 to 2,400 square feet. It features a 1.86 cu. ft. firebox, up to 65,000 BTU\/h maximum heat output, up to 7 hours of burn time, refractory brick lining, a glass air-wash system, stainless-steel secondary-air system, and room for logs up to 18 inches. A 32\" x 44\" faceplate, air intake damper, and 144 CFM blower with thermodisc are included for a complete finished installation.\u003c\/p\u003e","brand":"Century Heating","offers":[{"title":"None","offer_id":50267123712193,"sku":"CB00030","price":1649.0,"currency_code":"USD","in_stock":true},{"title":"25 inch","offer_id":50267123744961,"sku":"CB00030K","price":1929.0,"currency_code":"USD","in_stock":true},{"title":"35 inch","offer_id":50267123777729,"sku":"CB00030K3","price":2029.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0798\/3854\/4065\/files\/Century_Heating_CW2800_Wood_Insert_Kaminos_1.webp?v=1778859440"},{"product_id":"drolet-escape-1800-i-wood-insert","title":"Drolet Escape 1800-I Wood Insert","description":"\u003cp data-start=\"0\" data-end=\"371\"\u003eThe Drolet Escape 1800-I DB03125 Wood Insert is a large, high-efficiency insert designed to turn an existing masonry fireplace into a strong wood-burning heat source. Its single cast iron framed door and ceramic glass viewing area provide a clean view of the flames, while the compact insert body makes it a versatile option for many fireplace openings.\u003c\/p\u003e\n\u003cp data-start=\"373\" data-end=\"878\"\u003eEPA 2020 approved and non-catalytic, the Escape 1800-I is designed for dry cordwood and offers a heating area of 500 to 2,100 square feet. It features a 2.4 cu. ft. firebox, up to 75,000 BTU\/h maximum heat output, up to 8 hours of burn time, refractory brick lining, a glass air-wash system, stainless-steel secondary-air system, and room for logs up to 20 inches. 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