Enerzone Solution 3.5 Wood Stove

Right buyer

Owners of moderately to well-insulated homes between roughly 1,500 and 2,200 sq ft who want serious heat output from a wood-burning appliance, are willing to load wood every four to six hours when running the stove hard, and have access to seasoned hardwood at 15–20% moisture content.

Suited to rural and suburban homes where wood-burning is permitted, where a Class A insulated chimney can be installed or an existing masonry chimney can be properly lined, and where the floor and clearances can accommodate a large pedestal stove with a 520 lb shipping weight and overall dimensions of 28 1/8" wide by 33 1/2" deep.

Mobile-home and alcove approved with the appropriate kit, which broadens its install range compared with many decorative or cast-iron-focused stove designs.

Wrong buyer

Not for buyers who want set-and-forget heating. Wood stoves require active operation: lighting, monitoring stove-top temperature, closing the air at the right moment, deciding when to reload. The stove can leave usable coals by morning, but do not expect steady, high output through an entire night.

Not 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; for longer burns, a catalytic or hybrid stove is the right tool.

Not for small spaces under 1,200 sq ft — at this firebox volume the stove can easily overheat the room at any meaningful burn rate, forcing low burns that smolder, blacken the glass, and produce creosote.

Not for buyers in HOA or air-quality-restricted jurisdictions without first confirming local code permits a new wood-burning install.

The Solution 3.5 is designed for indoor installation in a permitted residential space with a Class A insulated chimney or a properly lined masonry chimney. It is approved for mobile-home installation only when the manual's mobile-home requirements are met, including outdoor combustion air, insulated intake pipe, double-wall venting, attachment to the structure, and no sleeping-room installation. It is approved for alcove installation with the manual's reduced-ceiling clearances. It is not an outdoor appliance. Garage, shop, cabin, non-residential, or otherwise unusual installations should be cleared with the AHJ, insurer, and authorized installer before purchase.

Clearances to combustibles — USA

Clearances to combustibles — Canada

The certification label on the back of the stove is the binding clearance for any installation and always overrides clearance figures published in any other media. Reduced clearances are available with approved heat shields per the manual. Most installers default to double-wall connector pipe to gain the closer back-wall clearance. Confirm the binding clearance figures with your installer before purchase.

Floor protection

A continuous non-combustible ember-protection surface is required on combustible flooring. Steel of at least 0.015" thickness, cement board, brick, tile over a continuous non-combustible sheet, or another approved listed material may be used. Tile alone is not sufficient — the manual requires a continuous non-combustible sheet beneath any tile installation to prevent embers from falling through if cracks or grout separation occur. A standard non-combustible ember-protection pad is sufficient — no insulating (R-rated) hearth pad is required.

Chimney and venting

The Solution 3.5 requires a 6-inch chimney flue system. New factory-built chimney systems must comply with UL 103 HT (USA) or ULC S629 (Canada) and be suitable for solid fuel. The stove may also be connected to a code-compliant masonry chimney, provided the chimney has either a clay liner or a suitably listed stainless-steel liner at 6-inch diameter and the application is verified by a qualified installer.

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.

If a square or rectangular masonry liner is larger in cross-sectional area than a round 6-inch flue, the manual specifies that it should be relined with a listed 6-inch stainless liner.

For mobile-home installations, single-wall pipe is strictly forbidden — only double-wall pipe is permitted, and a fresh-air intake kit with insulated intake pipe is required. The fresh-air intake pipe (HVAC type) must meet ULC S110 or UL 181 class 0 or class 1. The stove must be attached to the home structure and may not be installed in a sleeping room.

Connector pipe

The connector pipe is the indoor stove pipe between the stove top and the start of the Class A chimney. Maximum two 90-degree elbows; double-wall is preferred for closer wall clearances and more stable draft.

Outside air

Required for mobile-home installation. 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 stove needs. Outside air should be specified by the installer or used where exhaust appliances such as range hoods, dryers, or HRVs create depressurization that affects draft or causes smoke spillage. A smoke detector and carbon monoxide detector are required in the room where the stove is installed.

Code compliance

Code compliance for any specific installation is determined by the local Authority Having Jurisdiction. Manufacturer listings cover what the stove 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.

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 stove

• Solution 3.5 wood stove with welded carbon-steel firebox, arched cast-iron glazed door, and integrated pedestal base
• Premium 130 CFM variable-speed blower with thermodisc heat sensor (included — not sold separately)
• C-Cast baffle and stainless-steel secondary-air tube assembly
• Refractory firebrick lining
• Slightly curved top and engraved-groove side panels
• Pull-out ash drawer
• Owner's manual and product documentation

Sold separately

• Code-compliant 6-inch chimney system — listed factory-built chimney for new installations, or an approved masonry chimney/liner configuration where permitted by code and verified by the installer/AHJ; required venting components are sold separately
• Single-wall or double-wall pipe connector between the stove and chimney — double-wall is required for mobile-home installations and reduces back-wall clearance requirements
• Hearth pad or floor protection sized to manual specifications, with continuous non-combustible sheet beneath any tile
• Optional 5-inch fresh-air intake kit for wood stove on pedestal (SBI AC01336) — required for mobile-home installations and for code or mechanical-ventilation requirements
• Optional 5-inch × 4' insulated flex pipe for fresh-air intake (SBI AC02090) — required for mobile-home installations; longer 10-foot version (SBI AC02093) and 25-foot version (SBI AC02094) also available for longer routing
• Optional 5-inch fresh-air intake register with airtight damper (SBI AC01349) — closable outside-air damper for installations where local code, airtight-home design, or owner preference calls for one; do not close while the stove is in use
• Optional Airmate accessory (SBI AC01234) — top-mounted heat-accumulator that increases airflow off the stove top
• Optional rigid fire screen (SBI AC01281) — 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 stove 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; never permitted in a mobile home
• Pin-type wood moisture meter (SBI AC07835) — not optional in practice
• Stove-top or flue thermometer — strongly recommended; not optional in practice
• Installation by an authorized qualified technician (WETT, NFI, or CSIA certified) — required for warranty coverage and often required by code, permit, or insurance

The 110,000 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 17,200–57,800 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 90-minute warm-up and several hours of high output; mid-afternoon reload sustains heat through evening; a full pack at bedtime gives 6–8 hours of useful heat overnight, with the stove at coals by morning. In practical use with seasoned oak, maple, or hickory, expect 6–9 hours of useful heat from a packed load. With birch, pine, or softer wood, expect 4–6 hours.

The 22-inch maximum log capacity is a practical advantage. Most firewood suppliers cut to 16 inches, which is also the manual's recommended length. A stove that takes up to 22 inches lets you load larger splits with less labor when your supplier cuts longer. The 20 1/8" firebox depth also accepts north-south loading — useful for packed overnight cycles.

The included 130 CFM variable-speed blower meaningfully improves heat distribution in open-plan rooms. The variable-speed control lets you dial CFM up or down, and the thermodisc senses stove temperature and runs the blower automatically when the stove is hot — typically about an hour of warm-up time before the blower activates. 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 should be unobtrusive; at higher settings it will be audible. SBI does not publish a decibel rating.

The 1.6 g/hr particulate emissions is well below the EPA 2020 cordwood limit of 2.5 g/hr — useful in EPA non-attainment counties and for buyers paying attention to emissions independent of regulatory minimums.

Air-wash glass 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 stoves, not specific to Enerzone, and it is the strongest signal that your wood is too wet or your burn is too cool.

Non-catalytic burn time. A non-cat stove gives you simpler operation and no catalyst to replace, but you pay for it with shorter burns. If you want to load a stove at 9 PM and have meaningful heat at 6 AM, this is not the right tool — that is what a hybrid or catalytic stove is built for. Plan on reloading every 4–6 hours during active heating and accepting that overnight will end at coals.

Wood loading is a daily activity. 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.

Glass blackens at low burn rates. 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.

Pedestal-only, single finish. The 3.5 ships in metallic black on a pedestal base. No leg option, no enamel colors. Buyers who want cast-iron legs or enameled finishes should look at cast-iron stoves with porcelain enamel options.

Single-speed blower control mechanism. The blower runs at variable speed via the rheostat, but several owner reviews note they would prefer multiple speed presets or quieter operation at higher CFM. The factory blower is fine at lower settings and audible at higher settings.

520 lb shipping weight. One of the heaviest stoves in the catalog. Plan for three- or four-person handling at delivery and installation; the curb-to-room move is not a one- or two-person job. Confirm floor load before installation.

15-foot minimum chimney height is real. Three feet taller than the Solution 1.4 minimum and the same as the Solution 1.7. Verify your installation can meet this — short flues, low-ceiling first-floor installs, and outside chimney configurations can struggle on the bottom end of the Solution 3.5's draft requirement.

Heavy-duty internals, functional finish. The welded carbon-steel firebox, C-Cast baffle, lifetime weld warranty, and EPA 2020 cordwood compliance at 1.6 g/hr 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 stove sits in a high-traffic design space, that matters; in a basement, shop, cabin, or rural living room, it may not.

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 on the Solution 3.5 — largest splits on the bottom, smaller above, kindling on top, fire starter at the very top, light the top. Cleaner ignition, less smoke, faster to operating temperature.

Air control. Single-lever, full open at light-off, then gradually closed only after the load is fully engaged and stable secondary flames are established. A stove-top or 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.

Reload cadence. 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 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.

Ash management. The pull-out ash drawer makes daily-to-weekly removal cleaner than shoveling. 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.

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 stove is hot, and do not strike or slam the glass door shut.

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 job takes about 30 minutes. Plan on every 3–5 seasons in regular use.

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 — buy 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.

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 Enerzone/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, 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 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.

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 Enerzone dealer and remain subject to SBI/Enerzone inspection, approval, and the current written warranty. Kaminos is the retailer for this stove 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.

Enerzone 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 Enerzone warranty controls.