Furnace Cost in Canada (2026): Complete Price Guide

What a Furnace Actually Costs in Canada in 2026

For most Canadian homes, a fully installed gas furnace runs between $3,500 and $13,500 CAD in 2026. The low end covers a basic single-stage unit dropped into an easy, like-for-like replacement; the high end reflects a premium variable-speed system in a larger home with venting changes, electrical work, or duct modifications.

Those numbers are for installed price, not equipment alone. The furnace itself is often only 40 to 55 percent of the total. Labour, permits, venting, gas line and condensate work, and disposal of the old unit make up the rest, which is why two homeowners with the same model can pay very different amounts.

Quotes also reflect timing. Booking in spring or early fall, when contractors are less stretched than during the first cold snap, tends to produce more competitive pricing. To anchor your own estimate before you call anyone, you can run the numbers with our replacement cost calculator.

Price by Efficiency Tier (AFUE)

Furnace efficiency is measured by AFUE (Annual Fuel Utilization Efficiency), the share of fuel turned into usable heat. In most of Canada, building codes and gas utilities have effectively made condensing furnaces (90 percent AFUE and up) the standard for gas replacements, so the practical choice is which high-efficiency tier you buy, not whether to go high-efficiency at all.

Single-stage condensing units are the budget-friendly entry point and heat reliably, just at one fixed output. Two-stage models add a lower setting for milder days, improving comfort and reducing temperature swings. Variable-speed (modulating) furnaces fine-tune output continuously and pair best with smart thermostats and zoning, delivering the quietest, most even heat at the highest price.

• Single-stage, 95–96% AFUE: roughly $3,500–$6,500 installed
• Two-stage, 96% AFUE: roughly $5,500–$9,000 installed
• Variable-speed / modulating, 97%+ AFUE: roughly $7,500–$13,500 installed
• Higher AFUE lowers gas bills but the comfort and noise difference between tiers is often what homeowners notice most

How Home Size Changes the Number

Furnaces are sized by heating output in BTUs, and a bigger or draftier home needs more output, which generally means a larger, costlier unit. Canadian homes commonly use furnaces in the 40,000 to 120,000 BTU range, with colder climates and older, less-insulated houses pushing toward the high end.

Bigger is not automatically better. An oversized furnace short-cycles, wearing components faster and leaving rooms unevenly heated, while an undersized one struggles on the coldest nights. Proper sizing comes from a heat-load calculation, not a rule of thumb based only on square footage.

• Condo or small home (under ~1,200 sq ft): often 40,000–60,000 BTU, lower end of pricing
• Average detached home (~1,500–2,500 sq ft): often 60,000–90,000 BTU, mid-range pricing
• Large or poorly insulated home (2,500+ sq ft): often 90,000–120,000 BTU, upper end of pricing
• Estimate your sizing with the furnace size calculator or BTU calculator before requesting quotes

What Drives the Quote Up or Down

The single biggest swing factor is how much work surrounds the swap. A clean replacement of the same fuel type and configuration is fast; anything that touches venting, ductwork, electrical, or gas lines adds hours of skilled labour and materials.

Switching from a mid-efficiency to a condensing furnace, for example, requires new PVC venting and a condensate drain, which a like-for-like swap would not. Converting from oil or electric to gas, or relocating the furnace, adds even more. Be wary of a quote that is far below the others; it often means corners on permits, venting, or proper sizing.

• Venting changes: new PVC intake/exhaust for condensing units, often $300–$1,500
• Ductwork repair, resizing, or sealing: a few hundred to several thousand dollars
• Old-unit removal and disposal: usually $150–$500, sometimes bundled into the quote
• Permits and inspection: typically $100–$400 depending on municipality
• Add-ons that raise the total: new thermostat, fuel conversion, furnace relocation, electrical upgrades

Regional Price Differences Across Canada

Where you live affects both the price and the payback. Labour rates, permit fees, and how harsh the heating season is all vary by province, so the same furnace can cost more in one market than another and save more on fuel where winters are longer.

Colder provinces like Alberta, Saskatchewan, Manitoba, and much of Ontario and Quebec run furnaces hard for many months, so a higher-efficiency unit pays back faster on gas savings. Coastal British Columbia has milder winters, which lengthens payback but increasingly favours heat pumps paired with a gas furnace for backup. Provinces and regions with abundant low-cost hydroelectricity also shift the math between gas and electric heating.

• Urban centres like Toronto, Vancouver, and Calgary tend to have higher labour and permit costs than smaller towns
• Longer heating seasons in the Prairies and Central Canada shorten the payback on premium efficiency
• Milder coastal BC favours hybrid gas-plus-heat-pump setups over a furnace alone
• Check pricing and installers in your area on our locations pages

Rebates and Incentives That Lower Your Cost

Rebates can meaningfully cut what you pay, but the landscape shifts year to year, so confirm current programs before you assume an amount. Most incentives reward high-efficiency equipment and, increasingly, heat pumps over standalone furnaces, so the most generous rebates may push you toward a hybrid system.

Provincial utilities and energy programs are the main sources. Enbridge Gas in Ontario, FortisBC in British Columbia, and various provincial efficiency programs periodically offer rebates tied to AFUE thresholds, smart thermostats, or whole-home upgrades. Many require a pre- and post-installation energy assessment and use of a registered contractor, so check eligibility before you book.

• Look first at your provincial gas/electric utility and any provincial efficiency program
• High-efficiency furnaces, smart thermostats, and heat pumps are the most commonly incentivized
• Many rebates require an EnerGuide-style assessment and a licensed, registered installer
• Always confirm current program rules and amounts, as offers change and can close without notice

Financing and How to Spread the Cost

A furnace is a major unplanned expense for many households, and most reputable installers offer financing so you are not paying the full amount upfront. Monthly plans, deferred-payment promotions, and some government-backed efficiency loan programs can spread the cost over several years, often at promotional or low interest.

Compare the total cost of financing, not just the monthly payment, and weigh it against the gas savings a higher-efficiency unit delivers. In a cold-climate home, the fuel savings from stepping up an efficiency tier can partly offset a financed payment. See current options on our financing page.

How to Get an Accurate Quote

The most reliable estimate comes from an in-home assessment where a licensed technician measures your home, inspects venting and ductwork, and runs a heat-load calculation. Online ranges are a sanity check; the binding number comes after someone sees the job.

Get at least two or three quotes so you can compare scope, not just headline price, and make sure each includes permits, venting, removal, and warranty terms in writing. To start, request quotes from vetted Canadian installers or compare furnace models and brands side by side before you decide.

• Collect 2–3 itemized quotes and compare scope line by line, not just the bottom line
• Confirm the installer is licensed, insured, and pulls the proper permit
• Check that venting, old-unit removal, permits, and warranty are included in writing
• Use our compare tool and brands directory to shortlist equipment, then request quotes