Osburn Stratford II Wood Fireplace

Right buyer

Owners of moderately to well-insulated homes between roughly 1,200 and 1,800 sq ft who want a built-in wood-burning fireplace with timeless styling, double cast-iron-framed glass doors, and meaningfully lower particulate emissions than the larger Horizon or the Everest III. The Stratford II is the smaller of Osburn's premium mid-tier wood fireplaces — for buyers who don't need the Horizon's 4.28 ft³ firebox but want serious EPA 2020 heating capability and refined cast-iron design.

New-construction buyers framing a fireplace chase from scratch per the install manual's dimensions, OR substantial-renovation buyers replacing an aging factory-built prefab fireplace where the existing chase framing and chimney can be verified or rebuilt to meet the Stratford II's specific requirements. Replacement is not a drop-in: the old prefab unit must come out completely, the old chimney must be removed or replaced with an approved 6-inch UL 103 HT / ULC S629 system, and the existing chase framing must meet the published framing dimensions and clearances or be rebuilt to meet them. The Stratford II is a zero-clearance fireplace — it ships with listed insulation, shielding, and standoffs that allow installation inside a framed combustible chase when the manual's framing dimensions, clearances, air spaces, chimney system, and finish-material requirements are followed.

Buyers who want at-order configurability on two real design choices. Faceplate style: Traditional (default — classic louvered cast-iron faceplate) or Modern (upgrade — clean horizontal lines for contemporary interiors). Door overlay: Black (default — matches a stove-iron aesthetic) or Brushed Nickel (upgrade — adds a metallic accent that warms the room). The combination of choices substantially changes the appliance's visual character.

Buyers who want the included cast-iron andirons. Many wood fireplaces in this category sell andirons as a separate accessory; the Stratford II ships with them as standard. The andirons keep logs lifted off the firebox floor for better air circulation and combustion, and they add a classic wood-fireplace aesthetic to the fire.

Buyers who want lower particulate emissions than the larger Osburn wood fireplaces. 1.2 g/hr is meaningfully below the 1.6 g/hr of the larger Horizon and the 1.9 g/hr of the Everest III, and well below the 2.5 g/hr EPA 2020 cordwood limit. For buyers in EPA non-attainment counties or HOA-restricted jurisdictions, the emissions margin matters. Buyers seeking even lower published particulate emissions may compare the Stratford II with Osburn's Everest II, which is listed at 0.99 g/hr.

Buyers who want forced-air heat distribution to a remote room. The optional Forced Air Kit redirects heat through insulated 6-inch flex ducting to a wall or ceiling grille in another room — multiple owners report heating their whole 2,500+ sq ft homes via this kit plumbed into HVAC distribution. For multi-room or zone heating in larger homes, the kit transforms the Stratford II from a single-room heater into a multi-zone appliance.

Wrong buyer

Not for buyers retrofitting an existing masonry fireplace — that is a wood insert's job, not a zero-clearance fireplace. Look at the Osburn Matrix 2700 or Osburn 3500 insert if you have a masonry opening and want to upgrade its heating performance.

Not for buyers heating more than ~1,800 sq ft as primary winter heat in cold climates or older homes. The 2,200 sq ft figure on the manufacturer's range is aspirational; for primary heat in larger spaces, step up to the Osburn Horizon (4.28 ft³ firebox, 95,000 BTU/hr, 2,800 sq ft range, 25-inch log capacity).

Not for mobile-home installation. The Stratford II is not approved for mobile-home installation in either the US or Canada per the manufacturer listing. Mobile-home owners need a different appliance category.

Not for buyers who want set-and-forget heating. Wood fireplaces require active operation: lighting, monitoring flue temperature, closing the air at the right moment, deciding when to reload. The fireplace can leave usable coals by morning, but do not expect steady, high output through an entire night without a final reload.

Not for buyers expecting 10+ hour overnight burns. Non-catalytic appliances at this firebox size give you 6–7 hours of useful heat from a packed firebox of dense hardwood; for longer burns, step up to the larger Horizon (11-hour maximum burn) or look at catalytic technology.

Not for buyers in installations where the faceplate fit needs to be perfect on the first try. Multiple owner reviews note that the faceplate can be tricky to install flush against the surrounding wall material — installers need to leave adequate clearance and sometimes the brackets and screws on the fireplace body interfere with the faceplate sliding in. Plan installation time and finish-material clearances accordingly.

The Stratford II is designed for installation in a permitted residential space — a living room, family room, great room, or any habitable room with adequate floor and wall framing to accept the zero-clearance chase and the 6-inch chimney system. Not approved for mobile or manufactured-home installation, drop-in replacement of an existing prefab/decorative fireplace (the unit cannot slide into an existing prefab firebox and cannot reuse the old chimney or framing if those do not meet the published requirements), or outdoor or unconditioned-space installation. Replacement installs are possible only when the old fireplace and chimney are fully removed and the chase is verified or rebuilt to meet the required framing dimensions, clearances, and the approved 6-inch UL 103 HT / ULC S629 chimney requirement.

This is a zero-clearance unit — it ships with listed insulation, shielding, and standoffs that allow installation inside a framed combustible chase when the manual's framing dimensions, clearances, air spaces, chimney system, and finish-material requirements are followed. No masonry shell is required, but no surface of the firebox or chimney connection is permitted to touch combustible material outside the manual's listed zones.

Clearances to combustibles

The 13-inch combustible side-wall clearance is meaningfully tighter than the 24-inch on the Horizon and 21-inch on the Everest III — the Stratford II fits in narrower chase widths, which can be the deciding factor in some installation locations. Verify chase width with your installer before committing.

Clearances apply identically in Canada and the USA per the manufacturer's clearance table. The certification label on the unit is the binding clearance for any installation and always overrides clearance figures published in any other media. Some appliances have been tested with a low ceiling — refer to the installation manual for reduced-ceiling configurations. Confirm the binding clearance figures with your installer before purchase.

Framing and finish

A framed chase built per the install manual's framing dimensions is required. The chase width must account for the fireplace body plus space for accessory routing — the install manual specifies adding space for the fresh-air intake pipe (if used) and forced-air pipe (if used) to the width of the chase, plus the thickness of any drywall panels or finishing material inside the chase around the fireplace. Plan the chase dimensions with the installer before framing begins.

Finish material around the fireplace opening must be non-combustible within the manual's specified zones — typically a combination of cement board, stone or tile veneer, brick, or steel. Combustible material (wood mantles, decorative trim, paneling) is permitted outside those non-combustible zones at the specified distances. The selected faceplate (Traditional or Modern) and door overlay (Black or Brushed Nickel) form the finished interior edge between the fireplace opening and the surrounding wall material. Multiple owner reviews note that the faceplate fit can be tricky — installers need to leave adequate clearance and ensure that brackets and screws on the fireplace body do not interfere with the faceplate sliding into position.

Floor protection / hearth extension

A hearth extension is required if the fireplace is installed directly on the floor or on a raised base of less than 4 inches. The hearth extension must be a continuous non-combustible material extending in front of the fireplace per the install manual's specifications — minimum 16 inches in front of the appliance. If the fireplace sits on a raised base of 4 inches or more, the hearth extension requirements may differ — refer to the install manual's hearth-extension section.

Chimney and venting

A 6-inch chimney flue system is required. New factory-built chimney systems must comply with UL 103 HT (USA) or ULC S629 (Canada) and be suitable for solid fuel. Approved manufacturer/brand combinations listed by SBI include American Metal HSS and HS, DuraVent DuraTech / DuraTech Canada DTC / DuraTech Premium / DuraPlus HTC / DuraPlus, Metal Fab Temp Guard, Olympia Rockford and Champion, Ventis (Olympia/SBI Venting Division), Nexvent (SBI Venting Division), Security Chimney S-2100+, and Selkirk CF Sentinel / Super Pro 2100 / Super Vent 2100. Verify the chimney brand and component series with your installer before ordering venting.

The minimum chimney 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.

Forced air kit (optional)

The optional Forced Air Kit redirects heat from the fireplace through insulated 6-inch flex ducting to a remote room via a wall or ceiling grille. The manufacturer expects at least 25% heat transfer to other rooms when the fireplace is hot and the system is properly designed — shorter runs with fewer deviations work best, longer or overpowered systems can cool the combustion chamber too quickly and cause poor combustion. Multiple Stratford II owners report heating their entire 2,500+ sq ft homes via the Forced Air Kit plumbed into HVAC distribution pipework with a separate thermostat. Use only the manufacturer-supplied forced air system; aftermarket fans and ducting are not safety-tested for this fireplace and present a fire risk.

Outside air

Outside air is not required in conventional homes — combustion air is normally available from room air. However, a 4-inch fresh-air intake register with airtight damper and 4-inch insulated flex pipe are strongly recommended for tight new-construction homes with mechanical ventilation, for homes with powerful range hoods or other mechanical exhaust appliances, and where local code requires it. A smoke detector and carbon monoxide detector are required in the room where the fireplace is installed.

Code compliance

Code compliance for any specific installation is determined by the local Authority Having Jurisdiction. Manufacturer listings cover what the fireplace 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. Zero-clearance wood-burning fireplaces are a regulated category — confirm local requirements before purchasing, particularly in EPA non-attainment counties and in HOA jurisdictions where new wood-burning installs may be restricted.

California Proposition 65

This 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.

Ships with the fireplace

• Stratford II zero-clearance fireplace with welded steel firebox, double cast-iron-framed glass doors with air-wash system, moulded refractory brick panel interior, and stainless-steel secondary-air tube assembly
• Configured at order with required faceplate selection — Traditional (default) or Modern (upgrade)
• Configured at order with required door overlay selection — Black (default) or Brushed Nickel (upgrade)
• Cast-iron andirons
• Listed insulation, shielding, and standoffs that allow installation inside a framed combustible chase per the manual's required clearances, framing dimensions, air spaces, and finish-material zones
• 176 CFM blower with rheostat speed control and heat sensor for automatic cycling
• C-Cast or equivalent baffle
• Owner's installation and operation manual and product documentation

Sold separately

• Code-compliant 6-inch Class A insulated chimney system — listed factory-built chimney from an approved manufacturer/brand per the manufacturer's approved-chimney list; required venting components are sold separately
• Hearth extension or floor protection sized to manual specifications, with continuous non-combustible material extending at least 16 inches in front of the appliance
• Optional Forced Air Kit (SBI AC01374) — distributes heat to a remote room via insulated ducting; pairs with 6" × 25' insulated flex pipe (SBI AC01350)
• Optional Traditional Gravity Kit (SBI AC01375) and Modern Gravity Kit with Adjustable Pipes (SBI AC01389) — passive heat-distribution options that don't require forced-air ducting
• Optional Firescreen Door (SBI AC01275) — for occasional door-open viewing where local code permits; never leave the fireplace unattended with the firescreen in place
• Optional Heat Shield for Surround/Shelf (SBI AC01223) — additional shielding for shelving installed above or beside the fireplace
• Optional Tempered Glass Hearth Pad 18" × 50" (SBI AC02760) — coordinated hearth extension finish
• Optional 4" Fresh Air Intake Register with Airtight Damper (SBI AC01347), 4" × 10' Insulated Flex Pipe for fresh air intake (SBI AC02091), and 4" × 25' Insulated Flex Pipe for fresh air (SBI AC01359) — for tight homes or where local code requires outside air
• Optional Fireplace Carrying Handles (SBI AC09200) — site handling aid during installation; not part of the finished assembly
• Optional 48" Wood Storage with Finishing Trim (SBI AC02351) and Drawer and Tool Kit for Wood Storage Insert (SBI AC02353) — coordinated wood storage solution
• Digital moisture reader (SBI AC07835) and probe thermometer — strongly recommended; not optional in practice
• Glass cleaner (SBI AC07825), dry cleaning pad (SBI AC07824), gloves (SBI AC07820 or AC07822), fire starters — consumables for normal operation and maintenance
• Replacement Silicone and 5/8" × 8' Black Door Gasket Kit (SBI AC06500) — gasket replacement when the paper-strip test fails
• Installation by an authorized qualified technician (WETT, NFI, or CSIA certified) and a framing contractor familiar with zero-clearance fireplace chase construction — required for warranty coverage and often required by code, permit, or insurance

The 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 realistic operating day, primary-heat use, cold climate: morning reload at sunrise produces a fast 60–90 minute warm-up and several hours of high output; mid-afternoon reload sustains heat through evening; a full pack at bedtime gives 6–7 hours of useful heat overnight, with the fireplace at coals by morning. In practical use with seasoned oak, maple, or hickory, expect 6–7 hours of useful heat from a packed load; up to 8 hours under ideal low-burn conditions. With birch, pine, or softer wood, expect 4–5 hours.

The 2.5 ft³ firebox sits in the smaller premium Osburn wood fireplace tier, sized for homes that don't need the Horizon's 4.28 ft³ capacity. The 8-hour maximum burn time is genuinely achievable with the right wood — dense hardwood, properly seasoned, packed tight, air shut hard at the end of the load cycle. Owner reviews repeatedly confirm the heating capability: multiple owners report the Stratford II meeting or exceeding HVAC heat output through cold winters in the 1,200–2,500 sq ft range, particularly when paired with the Forced Air Kit.

The 1.2 g/hr particulate emissions is meaningfully below the Horizon's 1.6 g/hr and the Everest III's 1.9 g/hr, and well below the EPA 2020 cordwood limit of 2.5 g/hr. For buyers in jurisdictions where emissions matter (EPA non-attainment counties, HOA-restricted areas, BC/Ontario/Quebec/Atlantic Canada residential regulations), the Stratford II provides meaningful compliance margin.

The 64% HHV average efficiency is in line with the other Osburn wood fireplaces. Optimum efficiency of 70% (LHV) at low burn rate is competitive within the EPA 2020 cordwood category. HHV is the federal standard.

The 20-inch maximum log capacity is generous for a 2.5 ft³ firebox. Most firewood suppliers cut to 16 inches, which is also the manufacturer's recommended length. Loading is over width (east-west) per the manufacturer specification.

The included 176 CFM blower with heat sensor meaningfully improves heat distribution into the room. Air is distributed from behind the firebox out through the louvers in the faceplate. Owner reviews on blower noise are mostly positive — quiet enough to have TV on in the background per multiple owners, with a few reports of higher noise at maximum speed. One owner reported the blower continuing to run for a period after the fire is out as the unit cools — normal behavior of the heat-sensor cycle, not a defect.

With the optional Forced Air Kit installed and properly sized, the manufacturer expects at least 25% heat transfer to a remote room. Multiple Stratford II owners report substantially higher heat transfer in practice — heating entire 2,500+ sq ft homes by plumbing the kit into HVAC distribution pipework with a separate thermostat. The kit takes heat that would otherwise stay in the chase and routes it via 6-inch insulated flex pipe to wall, ceiling, or HVAC grilles in another room or zone.

The included cast-iron andirons keep logs lifted off the firebox floor for better air circulation and combustion. Beyond the aesthetic, the andirons help the fire burn cleaner and more efficiently — particularly during start-up and reload cycles when air circulation around the logs makes the most difference.

Air-wash glass on the double doors stays largely clear during proper hot burns. At low burn rates with marginally seasoned wood, the glass will tar. This is universal to non-catalytic tube appliances, not specific to Osburn, and it is the strongest signal that your wood is too wet or your burn is too cool.

Two buyer-configurable choices at order — faceplate and door overlay. Faceplate (Traditional default or Modern upgrade) and door overlay (Black default or Brushed Nickel upgrade). The combination substantially changes the appliance's visual character, and is not field-swappable after order without purchasing the alternate kit separately. Walk through the four possible combinations with the room aesthetic in mind before ordering.

Faceplate fit can be finicky. Multiple owner reviews report that the faceplate did not slide in cleanly because brackets and screws on the main fireplace body interfered with the faceplate's mounting position, or because the installer did not leave enough room for the faceplate to sit flush against the surrounding wall material. Plan installation time accordingly and ensure the installer is familiar with the Stratford II faceplate installation procedure. Osburn provides a dedicated faceplate installation instruction sheet — confirm the installer is working from it.

Smaller firebox than the Horizon. 2.5 ft³ vs the Horizon's 4.28 ft³ means shorter burn cycles, smaller log capacity (20-inch max vs 25-inch), and lower peak BTU (80,000 vs 95,000). For homes over ~1,800 sq ft as primary winter heat, the Stratford II will require more frequent reloads than the Horizon. Match the firebox to the heating load before purchasing.

Long-term wear reports. One owner with under 4 years of use reported significant wear on the inside refractory panels and the door seal, requiring replacement of multiple parts. Wear timing varies substantially by burning habits and wood quality — owners running marginally seasoned wood or excessive burn temperatures see faster wear. Plan for refractory panel inspection every 2–3 seasons and gasket replacement every 3–5 seasons. Replacement parts are openly available through the SBI parts network.

Ash cleaning can be messy. One owner noted difficulty cleaning ashes without it getting everywhere and the blower then blowing it throughout the house. Best practice: turn the blower OFF before ash removal, let the firebox cool, and use a metal ash container with a lid. Ash should not be removed during active blower operation.

Glass smoking up. One owner reported the glass smokes up quite a bit despite using very dry clean wood. Glass tarring is universal to non-catalytic appliances at low burn rates — the most likely causes are burns running too cool (air closed too aggressively) or marginally seasoned wood despite owner assessment. A digital moisture meter and a flue thermometer are the best diagnostic tools.

Lower efficiency than freestanding stoves. A wood fireplace at 64% HHV average efficiency is realistically 5–10 efficiency points lower than freestanding wood stoves of comparable firebox volumes. The architectural integration of a built-in fireplace costs heat — less exposed appliance surface to radiate into the room, more heat lost into the chase. Choose a fireplace for the architectural look and the wall-integrated install; choose a freestanding stove if maximum efficiency per cord of wood is the priority.

Non-catalytic burn time. A non-cat appliance gives you simpler operation and no catalyst to replace, but you pay for it with shorter useful-heat windows. The 8-hour maximum claim is achievable on a packed load of dense hardwood with the air shut down hard; useful heat through that cycle is realistically 6–7 hours. For 10+ hour overnight burns with steady output, step up to the larger Horizon (11-hour maximum) or look at catalytic technology.

Blower behavior after fire is out. The blower can continue running for a period after the fire is out as the unit cools through the heat-sensor cycle. This is normal behavior, not a defect — the sensor stops the blower below approximately 100 °F at the heat shield. Owners who want manual control over blower shutoff can install a switched outlet upstream of the blower.

468 lb shipping weight. Heavy enough to require multi-person handling at delivery; the curb-to-chase move is not a one- or two-person job. The optional Fireplace Carrying Handles assist with site handling but are not part of the finished assembly. Confirm framing load and floor support before installation.

Not mobile home approved. Not approved for mobile-home installation in either the US or Canada per manufacturer listing. Site-built homes only.

Zero-clearance ≠ retrofit into existing masonry fireplace. If you have an existing masonry fireplace and want to upgrade it to an EPA-certified heating appliance, you need a wood insert (Osburn Matrix 2700 or 3500), not a ZC fireplace. A zero-clearance fireplace replaces a framed decorative fireplace or installs in new chase construction — it does not retrofit into a masonry firebox.

Replacement installs require full teardown of the old unit and verification of the chase. Replacing an existing prefab fireplace is not a drop-in swap. The old fireplace and chimney must come out completely, the chase framing must be verified or rebuilt to the required framing dimensions and clearances, and a new approved 6-inch UL 103 HT / ULC S629 chimney must be installed. Plan the renovation scope and installer time accordingly.

Wood quality is not negotiable. The most common "the fireplace 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 digital moisture meter is the single best accessory for this fireplace.

First burns. The first three to six fires release paint VOCs as the high-temperature stove paint cures. The smell can be strong during paint cure-in. Ventilate the room well, avoid prolonged exposure, and expect the odor to disappear after the first several hot burns.

Lighting. The manual describes top-down lighting as an effective method — largest splits on the bottom resting on the andirons, smaller above, kindling on top, fire starter at the very top, light the top. Cleaner ignition, less smoke, faster to operating temperature.

Air control. 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. The manual specifies keeping flue temperature in the comfort zone of 250–475 °F at steady state, with 700 °F acceptable transiently during start-up. Do not maintain excessive temperatures over long periods.

Reload cadence. 3–5 hours between reloads in active high-output use; 6–7 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. Place at least three pieces on the fire at a time so that the heat radiated from one piece helps ignite the pieces next to it. Loading is over width (east-west) per the manufacturer's loading specification. The andirons keep logs lifted for better air circulation underneath.

Blower management. The blower starts automatically via the heat sensor when the fireplace reaches operating temperature, typically about an hour after cold start. Turn the rheostat to LO or HI to set speed; the sensor handles on/off. Turn the blower OFF before opening the door fully — otherwise it can blow ash out of the firebox into the room. The blower may continue running for a period after the fire is out as the unit cools through the heat-sensor cycle — normal behavior.

Ash removal. Turn the blower OFF before removing ash. Let the firebox cool. Use a metal ash container with a lid and store outside, away from combustible materials, for at least 48 hours before disposal — embers can remain hot for days. Removing ash with the blower running risks ash being distributed throughout the room.

Glass cleaning. 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. Do not clean the glass when the fireplace is hot, and do not strike or slam the glass doors shut.

Door alignment and gasket replacement. 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. The double-door design has gaskets on both doors and at the meeting edge — test all locations. Plan on gasket replacement every 3–5 seasons in regular use. Replacement gasket kits are available through the SBI parts network.

Refractory panel inspection. Inspect the moulded refractory brick panels lining the firebox at least once per heating season. Cracks under approximately 1/8 inch are cosmetic and do not affect performance; cracks wider than that, or panels showing significant chunks broken off, should be replaced. Replacement panels are available through the SBI parts network. Some owners report faster wear when running consistently high temperatures or wet wood.

Annual chimney sweep. Per the manual, the chimney should be cleaned and inspected at least once each year. Inspect monthly during the heating season until you know your creosote-formation rate; if buildup reaches 1/8 inch, sweep immediately. Heavy burners or those with marginally seasoned wood may need mid-season cleaning.

Wood seasoning. 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 digital 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.

Manufactured logs (composite firelogs). Per the manual, only manufactured logs made of 100% wood residues are permitted (no logs containing chemicals or accelerants). Start with one log and gradually increase; never put more than four logs in at a time; logs must be average size and not exceed approximately 8 inches in diameter. Manufactured logs release a large heat output over a short period — over-loading risks damaging the firebox. This four-log limit applies only to manufactured/composite firelogs and not to normal split cordwood.

Blower maintenance. Keep the blower intake and fins free of dust and follow the blower kit instructions for service. 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.

What never to burn. 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, kerosene, diesel fuel, 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.

The 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.

Coverage by component

A 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.

Warranty 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 fireplace 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, blower, faceplate, door overlay, andirons, and venting components are openly available at fair prices through multiple parts vendors.

Osburn may require photos or returned parts to support a claim; repair work covered by warranty requires prior manufacturer approval.

Coverage details can change by component and warranty revision; the current Osburn warranty controls.