Enerzone Wood Stove Comparison Guide

Enerzone is manufactured by SBI — Stove Builder International, a Quebec-based company that has been producing residential heating appliances since 1978. SBI is one of the largest stove and fireplace manufacturers in North America, producing multiple brands across different market segments. Enerzone is SBI's design-forward wood stove line, balancing performance with contemporary aesthetics.

The Enerzone lineup sold at Serene Yards consists of the Solution Series — four freestanding non-catalytic wood stoves in progressive sizes — and the Harmony 2.3, a premium design variant sharing the Solution 2.3's core specifications. Every model is EPA 2020 certified, built to UL safety standards for the US market, and backed by a limited lifetime warranty on key components.

SBI was founded in Quebec in 1978, originally as a foundry operation. By 1988, stoves and fireplaces became the company's sole focus. Today SBI produces heating appliances under several brands and sells across North America and internationally. The company's manufacturing facility holds accreditation to test and certify products to both US (EPA, UL) and Canadian (CSA, ULC) standards. All Enerzone products are tested and certified by an independent accredited laboratory to both CAN/USA standards — every stove sold in the US meets EPA 2020 emissions requirements and passes UL 1482 and UL 737 safety standards.

Enerzone offers five models at Serene Yards: four in the Solution Series and the Harmony 2.3. The Solution Series is a progressive size range — each model shares the same non-catalytic combustion technology and design language, scaling up in firebox volume, BTU output, and heating capacity. The Harmony 2.3 is a premium alternative to the Solution 2.3, built for the same space but with a heavier construction and more refined finish.

The smallest Enerzone, designed for small rooms, cabins, add-on spaces, mobile homes, or supplemental heating in apartments. 1.8 ft³ firebox, 45,000 BTU/h, 5-hour maximum burn time, 17″ logs, 1.8 g/h emissions. Mobile home approved. Loads logs over depth (north-south). The most compact footprint in the lineup at 20″ wide × 27⅞″ deep. Best for spaces under 1,200 sq ft where a full-size stove would overheat the room. Browse the Solution 1.4 product page.

The most versatile model in the lineup and the strongest match for the 1,000 sq ft sizing target. 1.86 ft³ firebox, 65,000 BTU/h, 7-hour maximum burn time, 18″ logs, 2.4 g/h emissions. Mobile home approved. Loads logs over width (east-west) for easier tending. Primary heating in homes or cottages between 500 and 1,800 sq ft. The 7-hour burn time makes it practical for overnight heating without reloading mid-night. Browse the Solution 1.7 product page.

The workhorse of the lineup for demanding climates and larger homes. 2.4 ft³ firebox, 75,000 BTU/h, 8-hour maximum burn time, 20″ logs, 2.3 g/h emissions. Mobile home approved. Primary heating in homes up to 2,100 sq ft, or buyers who want extra capacity for cold climates, high ceilings, or open-plan layouts. The 8-hour burn time and 20″ log capacity makes overnight reloads optional in most cases. Browse the Solution 2.3 product page.

The largest Enerzone — built for whole-home heating in large or poorly insulated spaces. 3.5 ft³ firebox, 110,000 BTU/h, 22″ logs, 1.6 g/h emissions, 130 CFM blower included as standard. Best for large homes, open-plan layouts, or cold climates where 2,000+ sq ft needs to be heated primarily by wood. The lowest emissions rating in the lineup at 1.6 g/h. Browse the Solution 3.5 product page.

Same combustion performance as the Solution 2.3, in a more substantial, design-forward package. 2.4 ft³ firebox, 75,000 BTU/h, 8-hour burn time, 20″ logs, 2.3 g/h emissions, 435 lb shipping weight (+33 lb over Solution 2.3). Mobile home approved. Non-catalytic — same secondary air combustion as the Solution series, not a different system. Best for buyers who want the same performance as the Solution 2.3 in a heavier, more refined build, where the stove is a design focal point in the room. Browse the Harmony 2.3 product page.

All specifications sourced directly from official Enerzone installation manuals. Where a specification differs between models, each value is listed individually.

All Enerzone models use non-catalytic combustion. Understanding what this means clarifies why Enerzone stoves perform the way they do — and how they compare to catalytic stoves from other brands.

A non-catalytic wood stove burns gases and particles through a secondary combustion system — typically a set of pre-heated air tubes positioned above the fire. These tubes inject additional oxygen into the rising gases at the right temperature to cause them to combust a second time, extracting more heat and dramatically reducing emissions. The process requires no catalytic combustor component and no replacement parts beyond routine maintenance of the tubes and baffle.

A catalytic stove uses a ceramic or metal honeycomb combustor coated with a catalyst (typically platinum or palladium) that allows gases to ignite at lower temperatures. Catalytic stoves can achieve longer burn times and very high efficiency under careful operation, but the combustor must be inspected regularly and replaced every 2–6 years at a cost of $100–$300 or more.

As combustion gases rise from the firebox, they pass through stainless steel air tubes that have been pre-heated by the fire. The tubes introduce fresh oxygen at precisely the right temperature, causing a secondary burn that consumes gases that would otherwise escape as smoke or particulates. This is why Enerzone models achieve EPA 2020 ratings well below the regulatory limit — the Solution 3.5 measures 1.6 g/h, the Solution 1.4 measures 1.8 g/h, against the EPA 2020 standard of 2.5 g/h for most non-catalytic stoves.

The practical benefit: cleaner glass (the air-wash system and secondary burn both reduce glass blackening), more complete combustion, and less creosote accumulation in the flue compared to older, non-certified stoves.

Both the Harmony 2.3 and the Solution 2.3 use the same non-catalytic combustion technology, produce the same maximum BTU output (75,000 BTU/h), cover the same heating area (500–2,100 sq ft), and carry the same 8-hour maximum burn time. The distinction between them is not performance — it is construction quality and aesthetics.

Which one to choose: If you are choosing between the Solution 2.3 and Harmony 2.3 purely on performance, they are equivalent. The Harmony is the right choice if the stove will be a focal point of the room and the additional weight and aesthetic refinement matter to you. The Solution 2.3 is the right choice if you want the same heating capacity at a lower price point.

• Mobile home or manufactured home owners — Solution 1.4 is mobile home approved in both US and Canada
• Cabins, seasonal cottages, or single-room supplemental heating
• Spaces under 1,200 sq ft where a full-size stove would overheat the room
• Buyers who want the smallest possible footprint (20″ wide × 27⅞″ deep)
• Alcove installations where depth clearance is a constraint

• Primary heating in homes or cottages between 500 and 1,800 sq ft
• Buyers who need a 7-hour burn time for overnight heating without reloading
• Those who prefer loading logs east-west (over width) for easier tending
• Homes in moderate climates where 65,000 BTU covers the whole space
• Anyone who wants a range of leg and pedestal base options to match their décor

• Homes between 1,200 and 2,100 sq ft needing primary wood heat
• Cold climates where 65,000 BTU isn't quite enough but 110,000 BTU would be excessive
• Buyers who want an 8-hour burn time and a 2.4 ft³ firebox that accepts 20″ logs
• Open-plan layouts where heat needs to reach beyond one room
• Buyers who want Solution 2.3 performance at a lower price than the Harmony

• Large homes from 1,500 to 2,700 sq ft where wood is the primary heat source
• Cold climates with demanding winters where 75,000 BTU is insufficient
• Buyers who want the lowest emissions in the lineup — 1.6 g/h, well below EPA 2020 limits
• Those who want a blower included rather than as an add-on
• Households that burn large loads of wood and want a 22″ log capacity

• Buyers who want Solution 2.3 performance in a more premium package
• Homes where the stove is a design focal point, not just a heat source
• Those who prefer heavier, more substantial construction and are willing to invest more
• Buyers for whom the stove's visual presence in the room matters as much as output

Every Enerzone stove requires minimum clearances between the stove body and any combustible material — walls, furniture, drapes. The values below are for US installations. Canadian clearances differ slightly; always refer to the certification label affixed to your specific stove, which overrides all published documentation.

Single-wall pipe requires greater clearances than double-wall pipe. Double-wall pipe runs closer to walls, which matters in tight installations. Clearances for the flue connector pipe are measured separately from appliance clearances — both must be satisfied simultaneously.

A non-combustible hearth pad is required beneath and around every Enerzone stove. In the US, the pad must extend at least 16 inches in front of the door opening and at least 8 inches on each side (measured from the door opening). Materials can include steel, stone, brick, ceramic tile on cement board, or any listed floor protection product.

All Enerzone models connect to a 6″ flue outlet and require either a ULC S629 / UL 103 HT factory-built chimney rated to 2100°F, or a masonry chimney lined to the same standard. The connector pipe (stove pipe) must be at least 24-gauge aluminized or cold roll steel. A licensed or NFI-certified installer is strongly recommended for both the stove and chimney installation.

The Solution 1.4, 1.7, 2.3, and Harmony 2.3 are mobile home approved. Mobile home installations require a dedicated outside air kit connecting the stove's combustion air supply to the exterior of the structure, along with a factory-built chimney listed for manufactured home use. The stove must be permanently bolted to the floor. The Solution 3.5 is not mobile home approved.

Choosing the right Enerzone model comes down to three questions: how much space you need to heat, whether you have any special installation requirements, and whether design is a factor in the decision.

• Your space is under 1,200 sq ft
• You live in a mobile or manufactured home and need HUD/ULC approval
• You need the smallest footprint in the lineup (20″ wide)
• You are heating a cabin, workshop, or add-on room as a primary source
• Budget is a priority and supplemental heat is the main goal

• Your space is 500 to 1,800 sq ft in a moderate climate
• You need a 7-hour burn time for overnight heat without reloading
• You want the widest choice of base styles (leg and pedestal options)
• The 1,000 sq ft range is your target — this is the strongest match
• You want a blower option but prefer to add it selectively

• Your space is 1,200 to 2,100 sq ft and wood is your primary heat
• You need an 8-hour burn time and 20″ log capacity
• You want the most-reviewed and most-documented model in the lineup
• You want the same performance as the Harmony at a lower price
• Cold climates where 65,000 BTU won't quite cover your space

• Your space exceeds 2,000 sq ft or you're in a very cold climate
• You want the lowest emissions in the lineup (1.6 g/h)
• You want a blower included, not as an add-on
• You burn large loads and need 22″ log capacity
• Whole-home primary heating is the goal

• You want Solution 2.3 performance in a heavier, more premium package
• The stove is a design focal point in your room
• You prefer substantial construction and are willing to invest more
• Aesthetics matter as much as heating output

Wood stoves heat by zone — the room with the stove and the space directly above it will always be warmer than rooms distant from the heat source. If you need to heat more than one floor, install the stove in the lowest floor. Add approximately 50% of the upper floor's square footage to your target heating area when selecting your model.

For model-specific guidance on sizing, see the individual size guides linked below.

All Enerzone stoves sold at Serene Yards carry a manufacturer's limited warranty with coverage periods that vary by component. The warranty applies to the original purchaser only with proof of purchase, is non-transferable, and requires professional installation by a qualified technician. The full warranty document is available on request.

Each product page links to a dedicated size guide with detailed clearance diagrams, floor protection requirements, and model-specific installation notes.