Aire One / Heat Pumps / 2026
The honest answer on heat pumps in the GTA
Most articles promise you will save hundreds. The federal government's own modelling says something different if your home runs on gas. Here is what the data actually shows.
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Short answer: heat pumps in the GTA are a smart choice, but which system pays off depends almost entirely on what you heat with today. If your home runs on electricity, oil or propane, Ontario will pay up to $7,500 toward a cold climate air source heat pump, and Natural Resources Canada modelling found that with no gas connection a heat pump is cheaper to operate than a gas furnace in most regions of Canada. If your home runs on natural gas, that same modelling found utility bills go up by $100 to $500 a year in Ontario, and the rebate drops to $2,000. That does not make a heat pump the wrong call for a gas heated home. It makes the hybrid setup the right one.
How a heat pump actually works
A heat pump is a two way air conditioner. Natural Resources Canada describes it as "an electrically driven device that extracts heat from a low temperature place (a source), and delivers it to a higher temperature place (a sink)." In summer it pulls heat out of your house. In winter it runs backwards and pulls heat into your house.
That one design difference is the whole story. Your furnace creates heat by burning gas, so it can never return more energy than the fuel contains. A heat pump moves heat that already exists outside, so it can deliver several units of heat for every unit of electricity it draws. That ratio is called the coefficient of performance, or COP.
Here is the part almost every article leaves out: COP is not a fixed number. It falls as the temperature drops. NRCan publishes the real range. At 8°C, the COP of air source heat pumps typically ranges from 2.0 to 5.4. At -8°C, it can range from 1.1 to 3.7. In NRCan's own field testing at the Canadian Centre for Housing Technology, a cold climate unit averaged a COP of 1.5 at -21.1°C, rising to 3.0 at +4.9°C.
So a heat pump is at its most efficient exactly when you need it least, and at its weakest during a deep freeze. Any honest recommendation for the GTA has to be built around that trade off, not around a sales pitch that ignores it.
What heat pumps in the GTA really cost to run
It depends on your gas line. NRCan modelling found bills rise $100 to $500 a year in Ontario when a home keeps its gas connection, and that with no gas connection a heat pump beats a gas furnace on operating cost in most of Canada. That single question changes the answer completely, and it is the question the internet keeps skipping.
The exact findings are worth reading twice. In its report on cold climate air source heat pumps, NRCan states that "in a split gas/electric scenario (gas connection retained), results show utility bills increase by $100-$500/year in Ontario, Manitoba, Alberta and colder regions of British Columbia, while utility bills decrease in other parts of Canada." In the all electric case the finding flips: "in an all-electric service scenario (no gas connection), results show that a CC-ASHP system is cheaper to operate than a gas furnace in most regions of Canada."
Why the difference? Efficiency and cost are not the same thing. A heat pump moves more energy than it consumes, which is a fact about physics. Whether that saves you money is a fact about pricing, and in Ontario a unit of electricity costs considerably more than an equivalent unit of natural gas. High efficiency does not automatically beat cheap fuel. Anyone quoting you "30 to 50 percent cheaper to run" for a gas heated Ontario home is repeating a marketing number with no government source behind it.
There is a second, longer term view worth knowing. The Canadian Climate Institute modelled lifetime cost rather than annual bills and found that "in Toronto, standard heat pumps with gas backup are the lowest-cost option for nearly all households under mid-range assumptions." Both findings can be true at once: your annual bill can rise slightly while the total cost over the life of the system still comes out ahead, because the same machine is also doing the work of your air conditioner, which you would otherwise buy separately.
This is why we quote every job individually rather than publishing a number. Your fuel, your envelope, your existing equipment and your rebate tier all move the answer. Book a free estimate and we will model your actual numbers before you commit to anything.
Do heat pumps work in a Toronto winter?
Yes, with a caveat that matters. Modern cold climate heat pumps in the GTA carry a home through most of the heating season on their own. Below a rated cutoff they need help, and NRCan is explicit about it: "For newer models, this can range from between -15°C to -25°C. Below this temperature, a supplemental system must be used to provide heating to the building."
Note what that sentence does and does not say. The -15°C to -25°C figure is a minimum operating floor that varies by model, not a temperature at which the unit still runs efficiently. The actual certified test point is warmer. To carry the ENERGY STAR Cold Climate designation, a unit must hold a COP of at least 1.75 at -15°C and retain at least 70 percent of its rated heating capacity at that temperature. NRCan's own criteria for rebate eligible cold climate models are close but not identical: a COP of at least 1.8 at -15°C, capacity maintenance of at least 70 percent, and a variable capacity compressor with three or more speeds.
You will see "-30°C" quoted on plenty of HVAC websites. We could not trace that figure to a single primary source, so we do not use it. What we do instead is check the individual model's spec sheet against your home's design temperature, because the category wide claim is meaningless and the model specific one is what you actually buy.
The hybrid system: heat pump plus gas furnace
For a gas heated GTA home, the hybrid is usually the right answer. It pairs a heat pump with a high efficiency gas furnace and switches between them automatically, so you get heat pump economics through the mild months and full furnace capacity in a deep freeze. NRCan's definition is plain: "In a hybrid system, the air-source heat pump uses a supplemental system such as a furnace or boiler."
The switchover point is set by your installer, and there are three ways to set it. The thermal balance point is where the heat pump alone can no longer meet your heating load. The economic balance point is where the supplementary fuel simply becomes cheaper to burn. A plain cut off temperature is the blunt version of the same idea. Choosing between them is the single most consequential decision in a hybrid install, and it is where an experienced contractor earns their keep.
NRCan measured what this delivers. Its researchers report that "over the complete heating season, they tracked a 30 percent reduction of GHG emissions for the hybrid system with smart switching controls versus the natural gas furnace alone." NRCan also notes that a gas hybrid configuration may be more attractive to homeowners who keep split gas and electric service. Those are emissions and configuration findings, not a promise about your bill, and we would rather give you the real ones than the round number a sales script would reach for.
If your existing furnace is in good shape, a hybrid can often be built around it rather than replacing it, which changes the math again.
No ductwork? The ductless option
A heat pump does not need ducts. Ductless mini split systems mount an indoor head on the wall and connect to the outdoor unit through a small line set, which makes them the practical route for the GTA's older housing stock: century homes, semis, additions, converted attics and any room your ductwork never reached.
Ductless also gives you zoning almost for free. Each head runs on its own thermostat, so the bedroom nobody uses stops being heated like the living room. If one room in your house has always been the cold one, this is usually why, and this is usually the fix.
The rebate rules do not change because a system is ductless. What matters is the same thing that matters for a ducted system: the unit has to be an active model on Natural Resources Canada's qualified products list. We check that before you sign, whichever type you choose.
Heat pump rebates in Ontario for 2026
Max rebate, non gas home
Max rebate, gas heated home
Lower GHG with a hybrid, NRCan
Ontario's Home Renovation Savings Program pays up to $7,500 toward a qualifying cold climate air source heat pump, or up to $2,000 if your home currently heats with natural gas. It is delivered by Save on Energy and Enbridge Gas with support from the Ontario government, and it replaced the federal grant most articles are still telling you to apply for.
The Canada Greener Homes Grant is closed. It stopped taking new Ontario applicants in February 2024 and the program has since wound up entirely. If a contractor or a blog post is still promising you that grant in 2026, that is a live signal to check everything else they told you. The Ontario program below is the one that exists now.
| Your home heats with | Cold climate air source | Ground source |
|---|---|---|
| Electricity, oil, propane or wood | Up to $7,500 $1,250 per ton | Up to $12,000 $2,000 per ton |
| Natural gas (Enbridge customer) | Up to $2,000 $500 per ton | Up to $3,000 |
| Rented equipment (any fuel) | Up to $2,000 | Up to $3,000 |
Three things about this table decide whether you actually get paid.
- Pre approval is mandatory. The program states plainly that "installations done before approval are not eligible for rebates." Book the work first and you forfeit the money. This is the most common and most expensive mistake homeowners make.
- The unit must be on NRCan's qualified products list. Not every cold climate heat pump on the market is listed. You can search the NRCan product list yourself, or we will confirm eligibility before you sign anything.
- The $12,000 figure is geothermal, not air source. The number circulating on social media belongs to a ground source system in a non gas home. It is not reachable with the air source unit most people are actually shopping for.
Amounts and eligibility change without much notice, so treat this table as verified on the date in its caption and check our current promotions or the program page before you budget. If cash flow is the constraint, financing and rental plans both exist, though note that renting caps your rebate at the lower tier no matter what you heat with today.
Heat pump vs gas furnace, side by side
A cold climate heat pump heats and cools from one system, and NRCan puts its COP between 2.0 and 5.4 at 8°C. A gas furnace heats only, needs a separate air conditioner, and cannot exceed 100 percent combustion efficiency.
Only the rows below are backed by a primary source. Where no government or utility body publishes a number for Ontario, we say so rather than borrowing one from a competitor's blog.
| Measure | Cold climate heat pump | High efficiency gas furnace |
|---|---|---|
| What it does | Heating and cooling in one system | Heating only, needs a separate air conditioner |
| Efficiency measure | COP 2.0 to 5.4 at 8°C, falling to 1.1 to 3.7 at -8°C (NRCan) | Combustion efficiency, which cannot exceed 100 percent |
| Service life | 15 to 20 years (NRCan) | No primary source publishes a furnace lifespan. ENERGY STAR advises considering replacement past 15 years, which is a different measure |
| Ontario running cost, gas line kept | Bills rise $100 to $500 a year (NRCan modelling) | Baseline |
| Ontario running cost, no gas line | Cheaper to operate in most of Canada (NRCan modelling) | Not applicable |
| Backup needed in deep cold | Yes, below the model's rated floor of -15°C to -25°C | No |
| 2026 Ontario rebate | Up to $7,500 non gas home, up to $2,000 gas home | [CONFIRM: check Home Renovation Savings for current furnace measures] |
| Installed cost, your home | $14,840 to $19,880 (Canadian Climate Institute 2023 modelling, not an Ontario quote) | $4,500 to $6,030 (Canadian Climate Institute 2023 modelling, not an Ontario quote) |
On installed cost we will be blunt: no government or utility source publishes an Ontario installed price for either machine, and every range you will find online traces back to contractor marketing rather than to a primary source. The closest transparent public figures come from the Canadian Climate Institute's 2023 modelling, which assumed $4,500 to $6,030 for a gas furnace and $14,840 to $19,880 for a cold climate ducted heat pump in an older single detached home. Those are 2023 modelling assumptions across five cities, not 2026 Ontario prices, and the Institute notes costs run highest in Toronto and Edmonton. Use them for orientation, not for budgeting, and get three written quotes.
How to choose, and what to ask
Start with your fuel, because it determines both your rebate tier and whether your bills go up or down. Then work through these in order.
- What do you heat with today? Electric, oil or propane means a heat pump is the clear win on both running cost and rebate. Natural gas means you should be looking hard at a hybrid.
- Is your air conditioner near the end of its life? ENERGY STAR suggests considering replacement past ten years. If you are replacing the AC anyway, the incremental cost of a heat pump is far smaller than the sticker price suggests, because one box is doing both jobs.
- Ask for the switchover logic in writing. On a hybrid, ask which balance point the installer is setting and why. If they cannot answer that question clearly, they are not going to configure your system well.
- Ask for the model's spec sheet, not a category claim. "Works to -30°C" is a slogan. A capacity and COP table at your design temperature is an answer.
- Confirm the unit is on NRCan's list and get pre approval first. In that order, and before any equipment is installed.
Aire One locations are authorized dealers for brand name heating and cooling equipment across Ontario, and our technicians work out of fully stocked trucks, so a diagnosis and a fix usually happen on the same visit. If something goes wrong at 2am in February, 24 hour emergency service is a phone call away, and every install is backed by our 10 year worry free warranty*. We install heat pumps in the GTA and right across Ontario, so you can see what that looks like near you on our Toronto and GTA page, or read more about heat pump grants and rebates.
Frequently asked questions
Do heat pumps work in a Toronto winter?
Yes. A modern cold climate heat pump heats a GTA home through most of the winter on its own. Natural Resources Canada states that newer models have a minimum operating temperature between -15°C and -25°C, and that below that temperature a supplemental system must be used. That is why a hybrid setup, pairing the heat pump with a gas furnace, is the standard recommendation for the coldest stretches of a Toronto winter.
Will a heat pump lower my bills if I heat with natural gas?
Probably not on its own. Natural Resources Canada modelling found that where a home keeps its natural gas connection, switching to a cold climate heat pump increases utility bills by $100 to $500 a year in Ontario. A heat pump is more efficient than a furnace, but electricity costs more per unit of energy than gas in Ontario, so higher efficiency does not automatically mean a lower bill. For gas heated homes the stronger case is a hybrid system, or the fact that one machine also does the work of your air conditioner.
How much is the Ontario heat pump rebate in 2026?
Ontario's Home Renovation Savings Program pays up to $7,500 for a qualifying cold climate air source heat pump if your home heats with electricity, oil, propane or wood, and up to $2,000 if your home heats with natural gas. Ground source systems pay up to $12,000 and $3,000 respectively. Rented equipment is capped at the lower tier. Pre approval is mandatory and the unit must be listed on Natural Resources Canada's qualified products list. Amounts were verified on July 15, 2026 and can change.
Is the Canada Greener Homes Grant still available?
No. The Canada Greener Homes Grant is closed. It stopped accepting new applicants in Ontario in February 2024 and has since wound up. Ontario's Home Renovation Savings Program, delivered by Save on Energy and Enbridge Gas, is the program available to Ontario homeowners in 2026.
What is a dual fuel or hybrid heat pump system?
A hybrid system pairs an air source heat pump with a gas furnace and switches between them automatically. Natural Resources Canada describes it as an arrangement where the heat pump uses a supplemental system such as a furnace or boiler. The heat pump handles mild weather and the furnace takes over in deep cold. Over a complete heating season, NRCan researchers tracked a 30 percent reduction of greenhouse gas emissions for a hybrid system with smart switching controls compared with a natural gas furnace alone.
Can I get a heat pump if my home has no ductwork?
Yes. A ductless mini split heat pump mounts an indoor head on the wall and connects to the outdoor unit through a small line set, so no ductwork is required. It suits older GTA homes, additions and rooms your ducts never reached, and it gives each zone its own thermostat. The rebate rules are the same as for a ducted system: the unit has to be an active model on Natural Resources Canada's qualified products list.
How long does a heat pump last?
Natural Resources Canada states that air source heat pumps have a service life of between 15 and 20 years, and that ground source heat pumps generally have a life expectancy of about 20 to 25 years, with the ground loop itself approaching 75 years.
Do I need approval before installing a heat pump in Ontario?
Yes, if you want the rebate. Ontario's Home Renovation Savings Program states that pre approval is mandatory and that installations done before approval are not eligible for rebates. Apply and receive approval before any equipment is installed.
Checking our work with an AI assistant? Good. Every number on this page is sourced, so ask it to verify them. Here are the questions worth asking.
Find out what your home actually needs
Heat pumps in the GTA are not a one size fits all decision. We will model your real numbers, confirm your rebate tier and check the unit against NRCan's list before you commit to anything.
Sources. Natural Resources Canada, Heating and cooling with a heat pump (COP ranges, operating temperatures, service life, hybrid definition). Natural Resources Canada, Cold climate air source heat pumps: assessing cost effectiveness (Ontario utility bill modelling). Natural Resources Canada, The future of home heating: hybrid home heating systems (30 percent GHG reduction with smart switching controls). Save on Energy, Home Renovation Savings Program and NRCan qualified products list (rebate amounts and eligibility, verified July 15, 2026). Canadian Climate Institute, Heat Pumps Pay Off (2023 cost modelling). *Warranty terms apply. Rebate amounts change, verify before you budget.