Gas Fireplace Cost Ontario 2026: Installation, Conversion from Wood, Operating Cost at Enbridge Rates

What a new gas fireplace actually costs installed

Gas fireplace pricing in Ontario breaks down into four main buckets: the appliance itself, the venting hardware, the gas line extension from the nearest supply point, and the finish work around the firebox. Published Ontario installer pricing for a standard direct-vent unit in a ground-floor living room lands at $7,200 to $8,800 installed for a quality insert plus decorative front, metal surround, vent kit, and labour.[6] At the lower end, smaller zero-clearance new-construction fireplaces start around $4,500 installed. Custom built-ins with stone or tile surrounds, long vent runs, or structural framing changes commonly reach $10,000 to $14,000.

Equipment brand is the biggest swing factor. A Napoleon, Heat & Glo, or Valor direct-vent insert in the 30,000 BTU class runs $2,400 to $3,500 at wholesale. Step up to a premium Regency or Napoleon-branded linear built-in with ceramic logs and programmable electronic ignition and equipment alone passes $5,000. Napoleon is manufactured in Barrie, Ontario, which simplifies dealer warranty claims and parts availability compared to imported brands.[8]

Converting a wood-burning fireplace to gas

Converting an existing wood-burning fireplace is often cheaper and cleaner than framing a new fireplace into a wall that has no chimney. Two distinct conversion paths exist, and they deliver very different results.

Path 1: Direct-vent gas insert (the real upgrade)

A sealed direct-vent gas insert slides into the existing masonry firebox. A flexible stainless steel coaxial liner runs up through the old chimney to carry combustion air down and exhaust up, giving you modern 70 to 80 percent efficiency, sealed glass, real usable heat, and remote or thermostatic control. Ontario installers price this conversion at $4,000 to $7,500 installed on a standard single-storey chimney run, including the insert, the liner kit, gas line extension, and commissioning.[6] Taller chimneys or damaged flues that need rebuilding add $500 to $2,500.

Path 2: Gas log set (cosmetic only)

A vented decorative gas log set drops ceramic logs and a burner into the open masonry box without sealing it. The old chimney stays open. These run $1,500 to $3,500 installed but produce almost no usable heat because the open flue draws most of the warm air straight out of the room. They look like a fire. They are not a heating appliance. For a room you actually want to heat, skip the log set and spend the money on a sealed insert.

Direct-vent vs B-vent vs ventless: Ontario code realities

Three venting categories exist for indoor gas fireplaces. Only two of them are generally allowed in Ontario residences, and the difference between them affects layout, efficiency, and cost.[3]

Direct-vent (modern standard)

A sealed coaxial vent draws outside combustion air in through an outer pipe and pushes exhaust back out through an inner pipe. The firebox is completely isolated from the room by a permanent glass front. The system can terminate through an exterior sidewall, which means direct-vent fireplaces can go almost anywhere in the house, including rooms with no chimney. Efficiency is 70 to 80 percent. This is the default for new installations.[6]

B-vent (older, chimney-dependent)

B-vent uses indoor combustion air and must vent vertically through a chimney chase or dedicated vertical vent run that extends above the roof. Efficiency is lower (typically 50 to 65 percent) because the unit draws already-warmed indoor air for combustion and does not have a sealed glass front. B-vent still has a role in projects where a usable existing chimney is already in place and horizontal venting is impossible, but for new work direct-vent almost always wins.

Ventless (vent-free) - not a real option in Ontario

Ventless or "vent-free" gas fireplaces burn gas and dump all combustion products, including water vapour and low levels of nitrogen dioxide, directly into the room. They are marketed aggressively in parts of the US. In Ontario, CSA B149.1, which is adopted by reference under Ontario Regulation 212/01, tightly restricts unvented gas heating appliances for residential use.[2][3] Most Ontario municipalities and TSSA inspectors will not pass an unvented gas fireplace as a permanent installation in a dwelling. A contractor who proposes one is either uninformed or taking a shortcut that will blow up on you at insurance-claim time. Stick with direct-vent or B-vent.

Gas line and venting: what your contractor needs

Every gas fireplace install in Ontario needs a gas line run from the existing supply (typically the basement manifold near the furnace) to the fireplace location, plus a vent run from the firebox to outdoors. The gas line work is the part most homeowners underestimate.

• Gas line extension. A 10 to 25 foot run of black iron or TracPipe CSST from the manifold to the fireplace costs $300 to $900 depending on how many walls, ceilings, and joists the pipe has to cross. Pressure test and leak-down test are mandatory and documented on the permit closeout.
• Meter and regulator capacity. Adding a fireplace on top of a furnace, water heater, range, and dryer sometimes pushes a house past the capacity of its existing gas meter or regulator. Your installer needs to do a load calculation. If an Enbridge meter upgrade is required, expect a three to six week lead time and no direct cost to you (Enbridge handles the meter change), but the installation cannot commission until the meter is upgraded.
• Vent termination. Direct-vent sidewall terminations have clearance rules to windows, doors, soffits, and property lines under CSA B149.1. A two to four foot setback from openings is typical, and the vent cap must be at least 12 inches above finished grade (more if snow accumulates against the wall).[3]
• Combustion air and framing. A zero-clearance fireplace going into a new stud wall needs proper framing with code-approved clearances to combustibles. A retrofit into an existing wall often means the drywall around the unit has to come out so the installer can verify framing and thermal barriers.

All gas line work must be performed by a licensed G1 or G2 gas fitter registered with the TSSA.[1] A G2 fitter can install residential gas appliances up to 400,000 BTU/hr input, which covers every household fireplace. A homeowner is not permitted to extend a gas line to a fireplace themselves under Ontario Regulation 212/01, regardless of any online tutorials suggesting otherwise.[2]

Permits, ESA, and TSSA certification

Gas fireplace installations in Ontario sit under three overlapping regulatory structures. Your contractor handles all three, but you should know what they are so you can verify the paperwork before final payment.

• Municipal mechanical permit. Every Ontario municipality requires a mechanical permit for a gas appliance installation and for the venting that goes with it. Permit fees run $200 to $500 for a typical fireplace project. The permit covers framing changes, venting, and combustion air intake.
• TSSA-compliant installation. The TSSA sets and enforces the fuel-safety code in Ontario. The gas fitter must install to CSA B149.1 requirements, pressure-test the line, and leave installation records on file.[1] On flagged jobs or on random audit, a TSSA inspector will do a field review.
• Electrical Safety Authority (ESA) notification. If the fireplace has a plug-in blower, a hardwired ignition module, or a dedicated circuit is being added, the electrician is required to file an ESA notification and the work has to pass an ESA inspection. Most direct-vent units use a simple 120V outlet nearby, which usually piggybacks on an existing circuit and still requires ESA sign-off if it is new wiring.

A contractor who offers to skip the permit to knock a few hundred dollars off the price is removing your insurance coverage for the appliance. Homeowner policies almost universally exclude damage from unpermitted fuel-burning work. This is not hypothetical: Ontario Home Builders' Association guidance calls out commissioning and inspection as core steps for permanent gas appliances.[6]

Annual operating cost at 2026 Enbridge rates

A 30,000 BTU direct-vent gas fireplace at full burn consumes roughly 0.85 cubic metres of natural gas per hour. The April 1, 2026 Enbridge EGD all-in rate, including delivery, transportation, gas supply, and cost adjustment, works out to approximately 33 cents per cubic metre on top of the fixed monthly customer charge of $27.69.[4][5] That puts full-fire operating cost at roughly 28 cents per hour.

Union South customers pay slightly more because that zone saw a January 1, 2026 rate increase rather than the April 2026 EGD rate decrease.[5] The difference works out to $10 to $25 more per year at evening use. See our Enbridge Gas Rates Ontario 2026 guide for the full rate breakdown by zone.

The useful math is comparing a fireplace evening against a whole-house furnace cycle. A 60,000 BTU furnace running 30 minutes to reheat the whole house burns about 0.85 cubic metres (same rate, different duration). Running a fireplace in one room while the furnace is thermostatically held down a few degrees can shift total evening gas consumption slightly, often ending up roughly flat. The fireplace is not "free heat." It is zone heat at about the same unit cost as furnace heat, which is why the value proposition is comfort and ambience rather than operating economics.

Brand landscape (Napoleon, Heat & Glo, Valor, Regency)

The Ontario market is dominated by four brands, each with a different positioning.

• Napoleon. Manufactured in Barrie, Ontario by Wolf Steel Ltd. since 1976. Strongest Canadian dealer network, competitive mid-premium pricing, and genuine cold-climate engineering. Equipment pricing for direct-vent inserts runs $2,400 to $4,200 wholesale.[8] Good default choice for a typical Ontario home.
• Heat & Glo. US-owned (Hearth & Home Technologies) premium brand. Strong on design-forward linear fireplaces and built-ins. Equipment pricing runs $3,500 to $7,500 for direct-vent models. Best suited to renovation projects where a long clean linear flame is the aesthetic driver.
• Valor. Radiant-heat specialist. Valor units run cooler glass temperatures and heat the room by radiation from the firebox rather than convection, which changes the heating feel in the room. Equipment pricing runs $3,800 to $6,500. Strong Canadian dealer presence.
• Regency. Pacific Northwest origins, broad Canadian availability. Mid-premium. Equipment pricing comparable to Napoleon, slightly higher on premium models. Decent selection of gas insert options for wood-to-gas conversions.

Whichever brand you choose, verify the dealer has been authorized for at least five years and carries parts stock. Gas fireplaces run for twenty-plus years, and blower motors, igniters, and thermopiles are the wear items that will need replacement in years eight through fifteen.

When a gas fireplace makes sense vs electric or ethanol

The decision tree is simpler than the marketing suggests.

• Primary living room, real heat wanted, natural gas already at the house. Direct-vent gas fireplace. $4,500 to $8,800 installed. Actual zone heat, works in a power outage with a battery-backed ignition module, moderate operating cost.
• Bedroom, basement, or condo with no gas service. Electric fireplace. $500 to $2,500 installed. Ambience plus a small supplemental heat load. No permit, no venting, plug-in simple.
• Existing masonry wood fireplace, rarely used, want it usable without hauling firewood. Wood-to-gas insert conversion. $4,000 to $7,500 installed. Best retrofit value in the category.
• Decorative only, want a real flame, no structural changes. Ethanol fireplace. $300 to $2,000. No permit or venting but almost zero usable heat. Niche product.

For homeowners comparing heating options more broadly, see HVAC Replacement Cost Ontario 2026 for the full furnace, AC, and heat pump picture. A gas fireplace is a supplemental comfort appliance in most Ontario homes rather than a primary heating system.

Related Guides

• Enbridge Gas Rates Ontario 2026: Full Breakdown (what your fuel cost works out to by zone)
• HVAC Replacement Cost Ontario 2026 (the broader heating and cooling picture)
• HVAC Permits Ontario 2026 (TSSA, ESA, and municipal mechanical permit details)
• Gas vs Electric Heating Ontario (operating cost comparison at 2026 rates)

Frequently Asked Questions