Furnace prices in Ontario (2026)
A new gas furnace in Ontario typically costs $4,000 to $11,000 installed in 2026, before 13% HST. The tier you choose sets most of that number; your house sets the rest.
Gas furnace, typical installed price
Heating$4,000to$11,000
Typical installed price, Ontario 2026, all options shown
- Gas furnace, single-stage95 to 96% AFUE $4,000 to $6,500
- Gas furnace, two-stage96% AFUE, ECM blower $5,500 to $8,000
- Gas furnace, modulating97 to 98% AFUE, variable speed $7,000 to $11,000
Installed price in Ontario, before 13% HST ($4,520 to $12,430 with HST). Standard replacement in a detached home with usable ductwork and venting.
On this page
These are planning numbers for a standard replacement, not quotes, on the same basis as every other system in the Ontario Furnace Prices index. Use them to judge the quotes you get, then ask for a written price for your own home.
What each furnace tier buys you
Every new gas furnace sold for an Ontario home is a high-efficiency condensing model. Federal rules have required at least 95% AFUE for most new gas furnaces since 2019, so even the cheapest tier turns 95 cents of every gas dollar into heat. What you pay more for is how the furnace runs: how many heat levels the burner has and how smoothly the blower moves air.
| Tier | Typical installed | Efficiency | How it heats | Best fit |
|---|---|---|---|---|
| Single-stage | $4,000 to $6,500 | 95 to 96% AFUE | One burner setting: fully on or off | Tight budgets, rentals, smaller or well-sealed homes |
| Two-stage | $5,500 to $8,000 | 96% AFUE, ECM blower | Low fire most of the winter, high fire on the coldest days | Most family homes: quieter, more even heat |
| Modulating | $7,000 to $11,000 | 97 to 98% AFUE, variable speed | Burner adjusts in small steps to match the heat loss | Large or two-storey homes with uneven rooms |
Typical installed ranges, Ontario 2026, before 13% HST. Features vary by model: check the spec sheet for the exact model number on your quote.
Single-stage: $4,000 to $6,500
The burner has one setting. On a mild November day it still fires at full output, heats the house fast, shuts off and starts again, which is where the blast of hot air and the swing around the thermostat setting come from. It is simple and the least expensive to repair: a sound choice for a tight budget, a rental or a house you plan to sell soon.
Two-stage: $5,500 to $8,000
The burner runs at a reduced setting, roughly two thirds of full output, for most of the season and steps up only when it is very cold. With an ECM blower, that means longer, quieter cycles and more even temperatures between floors. For most family homes this tier buys the most comfort per dollar: the midpoint premium over single-stage is $1,500.
Modulating: $7,000 to $11,000
A modulating furnace adjusts its burner in small steps between a low minimum and full output, with a variable-speed blower. It runs almost continuously at whatever output the house needs, the best answer for a large home, a cold room over the garage or a top floor that never quite warms up. Its controls and blower cost more to repair, so ask what the labour warranty covers.
Does the efficiency premium pay for itself?
Rarely, on gas alone. Take a house that burns 2,000 m³ of gas a year for heating at about 50 cents per m³ all-in. Moving from a 95% to a 98% furnace cuts that bill by about 3%.
- Yearly heating gas, example home
- $1,0002,000 m³ at about $0.50 per m³
- Yearly saving, 95% to 98% AFUE
- about $31Same house, same thermostat
- Midpoint price gap
- $3,750Single-stage to modulating
So a two-stage or modulating furnace is a purchase of comfort and quiet, which is a fair thing to pay for, as long as you know that is what you are buying. Electricity helps a little: an ECM or variable-speed blower uses less power than an older basic motor, most of all if the fan runs all the time.
Sizing and what it does to the price
Furnaces come in capacity steps, commonly 40,000, 60,000, 80,000 and 100,000 BTU/h input, and a larger cabinet costs somewhat more. Capacity moves the price far less than staging does. The real cost is getting it wrong: an oversized furnace short-cycles, wears out faster and leaves rooms drafty, while an undersized one runs flat out on the coldest nights.
A rough rule for Ontario homes is 25 to 45 BTU/h of heat loss per square foot, depending on age, insulation and air tightness. The table shows why that rule cannot size your furnace on its own:
| Heated area | Rough heat loss range |
|---|---|
| 1,200 sq ft | 30,000 to 54,000 BTU/h |
| 1,800 sq ft | 45,000 to 81,000 BTU/h |
| 2,500 sq ft | 62,500 to 112,500 BTU/h |
| 3,200 sq ft | 80,000 to 144,000 BTU/h |
Rule of thumb only (25 to 45 BTU/h per sq ft of heated area). Real homes fall anywhere in the band.
A CSA F280 room-by-room load calculation is the proper sizing method in Canada. It works out the real heat loss from your walls, windows, insulation and air leakage, and can show that a replacement should be smaller than the old furnace, especially after new windows or attic insulation. Ask every installer how they sized the furnace on the quote. For a first estimate, try the furnace size calculator.
What moves the price
The tier sets the base; your house moves the rest. New venting or a chimney liner, ductwork changes, gas line work, a condensate pump, a thermostat and a permit are priced on top of the range, from about $75 for a permit to $500 to $3,000+ for duct changes, and tight access adds labour. Brand line and timing can move a quote either way.
Removal of the old furnace is usually included; if a quote lists it as an extra, ask why. See every installation add-on, priced, with a worked example and a quote checker.
Know your real number
A free in-home estimate checks your venting, ductwork and gas line, and turns these ranges into a written price for your house.
Free, no obligation. About a minute to request.
Adding 13% HST
Every price on this site is before 13% HST, and so are most quotes, but not all. HST applies to the whole job, equipment and labour. To compare fairly, multiply a before-tax figure by 1.13: a $6,000 quote is $6,780 with HST.
| Tier | Low end | Midpoint | High end |
|---|---|---|---|
| Single-stage | $4,520 | $5,932 | $7,345 |
| Two-stage | $6,215 | $7,627 | $9,040 |
| Modulating | $7,910 | $10,170 | $12,430 |
Typical installed ranges multiplied by 1.13.
If one quote is before tax and another includes it, the cheaper-looking one may not be cheaper. Put every quote on the same basis first.
Renting instead of buying
Ontario has a large furnace rental market. Payments typically run $40 to $80 a month on 10 to 15 year terms, often with maintenance and repairs included. Easy on cash flow, but the total adds up:
| Payment | Term | Total paid |
|---|---|---|
| $40 a month | 10 years | $4,800 |
| $60 a month | 12 years | $8,640 |
| $80 a month | 15 years | $14,400 |
Totals assume a flat payment; some contracts raise it every year. Compare with buying a single-stage furnace at $4,000 to $6,500 plus an annual tune-up at $120 to $250.
Before you sign, ask for the buyout price in each year of the term, whether the payment rises, and whether anything is registered against your property title. Ontario has banned unsolicited door-to-door contracts for furnaces since 2018, and a contract signed in your home comes with a 10-day cooling-off period. The rent or buy guide works through the numbers.
Repair or replace?
A furnace repair runs from a $100 to $200 service call to $600 to $1,200 for an inducer motor or $900 to $1,800 for an ECM blower motor. A cracked heat exchanger is often replacement-level. A reasonable rule of thumb: if the furnace is past about 15 years and one repair costs more than about a third of a new single-stage furnace, put the money toward a replacement instead.
Work through your own situation with the repair or replace quiz, check part prices in the furnace repair cost guide, or read how long furnaces last.
Running cost
At about $0.50 per cubic metre of natural gas all-in on an Enbridge bill, delivery included, running cost depends mostly on your house and thermostat, not the furnace. Every new furnace turns 95 to 98% of its gas into heat, so two tiers in the same house use nearly the same gas.
To compare a gas furnace with a heat pump or electric heat at your own rates, use the heating cost calculator. If a heat pump is on your list, heat pump prices covers ducted and dual fuel systems.
Rebates: what applies to a furnace
A standalone gas furnace is not a heat pump rebate measure in Ontario's Home Renovation Savings program. The program rebates the heat pump itself, and its terms treat a gas furnace as compatible backup heating, not as the rebated equipment. If you install a cold-climate heat pump with your new furnace, a dual fuel system at a typical $11,000 to $20,000, the heat pump part may qualify, subject to the program's eligibility rules and mandatory approval before installation.
The federal Canada Greener Homes Loan closed to new applications on October 1, 2025. Programs change, so confirm the current rules on the program site before you buy, and do not count on any rebate until it is approved. More on our Ontario HVAC rebates page and in the heat pump rebate guide.
Sources
- Home Renovation Savings: heat pumps checked October 4, 2026
- Home Renovation Savings: terms and requirements checked October 4, 2026
- Natural Resources Canada: Canada Greener Homes grant process loan closure, checked October 4, 2026
Furnace prices by city
Local quotes follow the provincial ranges, nudged by labour rates, the age of the housing stock and local permit rules. Each city page has a price snapshot and local notes:
Waterloo Region and Guelph
Greater Toronto and Hamilton
Furnace prices by brand
Every major brand sells an entry, a mid and a premium line, and those lines overlap more than the brochures suggest: a value brand's premium furnace can cost less than a dealer brand's mid line. Each brand page explains its tiers, warranty structure and what to ask the dealer.
| Brand | Entry (single-stage) | Mid (two-stage) | Premium (modulating) |
|---|---|---|---|
| Goodman furnace prices | $4,000 to $5,250 | $5,500 to $6,750 | $7,000 to $9,000 |
| Rheem furnace prices | $4,300 to $5,800 | $5,800 to $7,200 | $7,500 to $9,800 |
| York furnace prices | $4,500 to $6,000 | $6,000 to $7,500 | $7,800 to $10,000 |
| American Standard furnace prices | $4,500 to $6,250 | $6,000 to $7,750 | $8,000 to $10,500 |
| Carrier furnace prices | $4,750 to $6,500 | $6,000 to $8,000 | $8,000 to $11,000 |
| Daikin furnace prices | $4,800 to $6,500 | $6,200 to $8,000 | $8,000 to $11,000 |
| Lennox furnace prices | $5,250 to $6,500 | $6,750 to $8,000 | $9,000 to $11,000 |
| Trane furnace prices | $5,250 to $6,500 | $6,750 to $8,000 | $9,000 to $11,000 |
Typical installed ranges by brand tier, each inside the provincial range for that furnace type. Your quote depends on the model, the dealer and your house.
The best furnace brands guide explains what actually differs between them, beyond the badge.
How to compare furnace quotes
Get two or three written quotes for the same scope, then line them up with these questions:
Questions to ask before you sign
- Is the price before or after 13% HST?
- Which model number, stage and capacity are you quoting, and how did you size it?
- What is included: venting, condensate drain, ductwork changes, thermostat, permit and disposal of the old furnace?
- How long is the parts warranty, does it depend on online registration, and what labour warranty do you add?
- Who does the installation: your own technicians or a subcontractor?
- What is your TSSA registration number?
- What deposit do you need, and when is the balance due?
- What happens to the price if you find a venting or duct problem on installation day?
If your central air conditioner is as old as your furnace, price both together with furnace and AC prices. For the full buying process, read the furnace buying guide, or estimate your own home with the furnace cost calculator.
Questions people ask
How much does a new furnace cost in Ontario in 2026?
A new gas furnace typically costs $4,000 to $11,000 installed, before 13% HST. Single-stage models run $4,000 to $6,500, two-stage $5,500 to $8,000 and modulating $7,000 to $11,000. Venting, ductwork or gas line changes are added on top; only a written quote after a home visit is firm.
What is included in an installed furnace price?
Usually the furnace, standard labour, reconnection to your existing ductwork, gas line and venting, start-up and safety checks, and removal of the old unit. New venting, a chimney liner, a condensate pump, ductwork changes, a thermostat and permits are often extra. Ask for a written list of what is in and out.
Is a two-stage furnace worth the extra cost?
For most family homes, yes, but for comfort rather than gas savings. A two-stage furnace runs on low fire most of the winter, so heat is steadier and quieter, and its ECM blower uses less electricity. The midpoint premium over single-stage is about $1,500. On gas alone it saves little, because both tiers are 95% AFUE or better.
How long does a furnace replacement take?
A like-for-like replacement in the same spot usually takes one working day, including removal, connection, start-up and safety checks. Converting from an older mid-efficiency furnace, rerouting venting, changing ductwork or switching from oil to gas can stretch it to two days.
What size furnace do I need?
As a rule of thumb, Ontario homes lose 25 to 45 BTU/h of heat per square foot on a design-cold day, so a 2,000 sq ft home could need anywhere from 50,000 to 90,000 BTU/h. That spread is why sizing should come from a CSA F280 room-by-room load calculation, not from the label on the old furnace.
Can I get a rebate on a new gas furnace in Ontario?
Not on a standalone gas furnace. Home Renovation Savings rebates heat pumps, with mandatory approval before installation, and treats a furnace as backup heating. Adding a heat pump to make a dual fuel system may qualify for the heat pump part. Programs change, so confirm the rules before you buy and do not count on any amount until it is approved.
Is it better to rent or buy a furnace in Ontario?
Buying usually costs less over the life of the furnace. Rentals typically run $40 to $80 a month on 10 to 15 year terms, which totals $4,800 to $14,400, against $4,000 to $6,500 to buy a single-stage furnace. Renting can suit you if cash is tight, as long as you read the buyout schedule first.
When is the best time to replace a furnace?
Spring and early fall. A planned replacement gives you time to compare quotes and book a convenient date, which is where most of the savings come from. In a mid-winter breakdown you have far less time to shop around. More in the best time to buy a furnace.