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COMPARISON GUIDE
Heat pump vs gas furnace in Ontario: how to decide
Modern cold-climate heat pumps heat Ontario homes through winter, and the rebates are the largest they've been. Whether one makes sense for your home depends on a few things you can check.
THE SHORT ANSWER
- Cold-climate heat pumps work in Ontario. They heat well below freezing, and also cool your home in summer.
- A hybrid (heat pump plus your gas furnace for the coldest days) is a lower-risk first step for many homes.
- Rebates are large: up to $7,500 for an air source heat pump and $12,000 for ground source through Home Renovation Savings, plus a federal rebate launching in early 2027.
Three options compared
| Gas furnace + A/C | Cold-climate heat pump | Hybrid (heat pump + furnace) | |
|---|---|---|---|
| Heating | Burns natural gas | Moves heat from outdoor air, with electric backup for the coldest hours | Heat pump most of the year; furnace takes over in deep cold |
| Cooling | Separate air conditioner | Built in | Built in |
| Upfront cost | Lowest | Highest, reduced by rebates | In between |
| Emissions | Highest | Lowest | Much lower than gas alone |
| Rebates | Limited | Largest available | Depends on the program and your current heating |
| Best for | Tight budgets with a failing furnace and no time to plan | Well-insulated homes, homes without gas, or homes replacing A/C and furnace together | Homes with a newer furnace or limited electrical capacity |
Do heat pumps work in an Ontario winter?
Yes. Cold-climate air source heat pumps are built to keep heating far below freezing. As it gets colder they deliver less heat for each unit of electricity, so on the coldest nights a backup takes over: electric resistance heat built into the system, or your existing furnace in a hybrid setup. Ground source (geothermal) heat pumps draw heat from the ground, which stays at a steady temperature year round, so they're unaffected by cold snaps, but cost more to install.
What decides whether it makes sense for your home
- How leaky and well insulated the house is. A draughty house needs a bigger, costlier system. Sealing and insulating first often lets you buy a smaller heat pump.
- Your ductwork. Existing ducts make a central heat pump straightforward; homes without ducts can use ductless mini-splits.
- Your electrical panel. An all-electric system may need a service upgrade; a hybrid usually doesn't.
- The age of your furnace and A/C. If your air conditioner is near the end of its life, a heat pump replaces it with heating included.
- Your fuel today. Homes heating with electric baseboard, oil or propane usually see the biggest operating savings.
A home energy assessment answers these in one visit: it measures air leakage, models your heat loss, and sizes the system before a contractor quotes. It's also required for Home Renovation Savings bundle rebates.
Rebates and loans in 2026
| Program | Amount | Notes |
|---|---|---|
| Home Renovation Savings: cold-climate air source heat pump | Up to $7,500 | Eligibility depends on your home and current heating; we confirm before you buy |
| Home Renovation Savings: ground source heat pump | Up to $12,000 | |
| Home Renovation Savings: heat pump water heater | $500 | Part of a bundle with an assessment |
| National Heat Pump Rebate | $2,000 or up to $10,000 | Up to $10,000 for low- to median-income households; opens early 2027; no energy audit; covers installs from November 1, 2026 |
| Toronto HELP loan | Up to $125,000 | Or 10% of assessed value if lower; Toronto homes; repaid on your tax bill |
| Peel Energy Grant Program | Heat pump rebates | Peel Region homes, with free assessments |
See every program on our Ontario rebate tracker, or add up your own upgrades with the home rebate estimator.
Sources: Save on Energy: Home Renovation Savings · Federal heat pump rebate announcement · Natural Resources Canada: heat pumps.
Quick answers
Do heat pumps work in Ontario winters?
Cold-climate air source heat pumps are designed to keep heating at well below freezing. In the coldest hours they work less efficiently, so many Ontario homes pair one with backup heat: electric resistance or the existing gas furnace in a hybrid system.
What rebates are there for heat pumps in Ontario?
The Home Renovation Savings Program offers up to $7,500 for a cold-climate air source heat pump and up to $12,000 for a ground source heat pump. A new federal heat pump rebate of up to $10,000 for low-to-median-income households and up to $2,000 for others is planned to launch in early 2027. Eligibility depends on your home and current heating.
Is a hybrid heat pump system worth it?
A hybrid keeps your gas furnace for the coldest days and uses the heat pump the rest of the time. It suits homes with a newer furnace, limited electrical capacity, or owners who want backup heat. An assessment shows how it compares with going fully electric in your home.