How to choose a wood stove for your home

Start with the space you need to heat

A wood stove is the most common, flexible and inexpensive way to heat with wood, and in a modern, well-insulated house one stove can carry the whole heating load.³ Size it for your house, not the showroom.

The US EPA groups stoves in three rough sizes:¹

• Small stoves suit a family room, a seasonal cottage, or zone heating in a house with a furnace.
• Medium stoves suit small houses, medium-sized energy-efficient houses and cottages used in winter.
• Large stoves suit larger open-plan houses, or older, leakier houses in colder climates.

Three things move you along that scale: how cold your winters are, how well the house is insulated and sealed, and the floor plan. An energy-efficient house loses heat slowly, while in a leaky house far rooms get cold fast. Open plans spread a stove's heat well; a main floor cut into small rooms is hard to heat with one stove.³

Why oversizing is a problem

A stove that is too small has to be loaded often and can wear out from running flat out. A stove that is too large overheats the room, so it gets turned down too low much of the time, which makes smoky, polluting fires.³ Smouldering fires also leave the black, tarry kind of creosote in the chimney.

Certified clean-burning stoves

Certification means the stove passed a lab test for smoke, and it is usually what the law, your municipality and your insurer ask for.

• United States. Since May 15, 2020, new wood stoves must emit no more than 2.0 grams of smoke per hour, or 2.5 g/h if tested with the optional cordwood method. Older uncertified stoves release about 15 to 30 g/h.¹ Look for the permanent metal EPA label on the back of the stove, or look the model up in the EPA database.¹⁴
• Canada. The Canadian standard is CSA B415.1. Quebec's Regulation respecting wood-burning appliances has banned the manufacture, sale and distribution of appliances that don't meet the CSA or EPA standards since September 1, 2009.⁵² New installations and replacements in Quebec must now emit no more than 2.5 g/h, and some municipalities go further.²

Catalytic, non-catalytic or hybrid

Steel, cast iron or soapstone

There are no clear performance differences between cast iron and plate steel, or between painted and enamelled finishes. It's mostly personal preference.³ What matters more is how the stove delivers its heat:³

• Radiant stoves (often cast iron or heavy steel plate) warm the walls and people facing them. Good in an open area, too much in a small room.
• Convection stoves have a sheet-metal jacket that air flows through. Their sides don't get as hot, which helps when furniture sits close.

Soapstone stoves are sold for their mass: makers say they warm up more slowly and keep giving off gentle heat after the fire dies down. We found no government test comparing soapstone with metal, so judge each model by its overall efficiency and emissions.

Firebox size and log length

The best guide to heating capacity is firebox size, not the overall size of the stove. Advanced stoves can usually have slightly smaller fireboxes than older stoves of the same output, because they are more efficient.³ The EPA database lists firebox volume in cubic feet.⁴

Check two things against the wood you buy:

• Length. The most common firewood piece length is 16 in. (400 mm).³ Make sure the firebox takes your seller's cut with room to spare; the manual gives the maximum log length. See how big a cord of wood is for how piece length changes what you get.
• Thickness. For high-efficiency stoves, pieces should be no more than about 6 in. (150 mm) across, with smaller pieces for stoking, so you may need to resplit some commercial wood.³ Burn dry wood, at 20% moisture or less.⁷

Clearances and installation

In Canada, the installation code for wood-burning appliances is CSA B365. For a certified stove, minimum clearances to combustible walls come from safety testing and are in the manufacturer's installation instructions, so the manual is the rulebook for your model.³

A few rules from the CMHC guide show what's involved:³

• An uncertified stove needs 48 in. (1,200 mm) to the sides and back, or 36 in. (900 mm) if it has a jacket. That, plus insurers that won't cover them, is reason enough to avoid one.
• Single-wall flue pipe needs 18 in. (450 mm) from combustibles, or 9 in. (225 mm) with proper shielding. At most 10 ft. (3 m) of pipe and two 90-degree elbows, three screws at every joint, and never galvanized pipe.
• Floor pad. A non-combustible pad must reach at least 18 in. (450 mm) in front of the loading door and 8 in. (200 mm) beyond the sides and back.

Codes change, so confirm current rules with your installer.

Who should install it

Get a building permit and tell your insurer before the work starts.³ In most of Canada, look for a professional trained under WETT (Wood Energy Technical Training), which certifies individuals, not businesses.³

Chimney needs

The chimney is at least as important as the stove, and it often decides where the stove can go.³

• Inside the house. Inside chimneys stay warm and draft better. Chimneys on an outside wall can backdraft cold air and smoke into the room.³⁹
• Height. The top must be at least 3 ft. (1 m) above where it leaves the roof and 2 ft. (60 cm) higher than anything within 10 ft. (3 m). The whole system, from the stove's floor to the chimney top, should be at least 15 ft. (4.6 m).³
• Size and type. The flue should match the stove's flue collar. Wood stoves need a 650°C (1,200°F) factory-built metal chimney or a lined masonry chimney built to code. Old Type A metal chimneys, unlined masonry and air-cooled chimneys are not suitable.³

Have the chimney swept at least once a year and the system inspected every year.⁶⁸

Budget and rebates

We found no government source with current prices, so get written quotes for the whole system: stove, pipe, chimney, floor pad, labour, permit and inspection. Double-wall flue pipe costs more than single-wall but lasts longer.³

Rebates, as of November 4, 2026:

• US. The federal Energy Efficient Home Improvement Credit covered biomass stoves with at least 75% thermal efficiency, up to $2,000 a year, but only for property placed in service by the end of 2025.¹⁰ Check state and local programs.
• Canada. We could not confirm any federal wood stove rebate open now. Some municipalities fund replacing old uncertified stoves, so ask yours, and search the NRCan directory of energy efficiency programs.¹¹

Want a stove inside your fireplace instead? See whether an insert is worth it.

Checklist

1. Ask your municipality whether a new wood stove is allowed and what permit you need.
2. Bring a floor plan and note your insulation and climate.
3. Shortlist certified models (EPA 2020 or CSA B415.1, and 2.5 g/h or less in Quebec).
4. Compare overall efficiency and g/h in the EPA database.
5. Pick catalytic, non-catalytic or hybrid for how you burn.
6. Check firebox volume and maximum log length against the wood you buy.
7. Plan the chimney: inside the house, the right height, sized to the collar.
8. Get written quotes from a certified installer, tell your insurer and have the work inspected.
9. Line up dry firewood for the first season with the face cord calculator, or find a firewood stand near you.

Questions