Ontario's heat pump rebate: why one house gets $3,750 and the house next door gets $1,500

Why do two neighbours get such different heat pump rebates?

Two houses sit side by side on a street in Woodstock. Both owners put in a cold-climate heat pump the same autumn, from the same installer, at about the same size. One cheque comes back for $3,750. The other comes back for $1,500. Nobody made a mistake. The first house was heated with electric baseboards; the second had a natural gas furnace, and Ontario's Home Renovation Savings Program pays by the fuel you heat with before the heat pump goes in.

That one rule changes the whole calculation. It's also the part most ads leave out when they promise "up to $7,500".

How much does the rebate pay for each heating fuel?

The program publishes its rates per ton of heat pump capacity, with a cap for each case. A ton is 12,000 BTU per hour of heating capacity, and for a cold-climate air-source unit the program counts the minimum rated heating capacity at 8.3°C (47°F). These are the amounts on the official program page as of October 16, 2026:

• Heated with electricity, oil, propane or wood, air-source: $1,250 per ton, up to $7,500
• Heated with electricity, oil, propane or wood, ground-source: $2,000 per ton, up to $12,000
• Heated with Enbridge natural gas, air-source: $500 per ton, up to $2,000
• Heated with Enbridge natural gas, ground-source: $3,000
• Rental heat pump, any fuel: $500 per ton up to $2,000 air-source, or $3,000 ground-source

What would a typical Oxford County house actually get back?

Take a three-ton cold-climate air-source heat pump as the example. If the house heats with electric baseboards, oil or propane, the rebate works out to 3 x $1,250 = $3,750. If the same house heats with Enbridge natural gas, it's 3 x $500 = $1,500.

The $7,500 maximum only arrives at six tons of capacity, which is a big system for one house. The gas-home maximum of $2,000 arrives at four tons. So the headline figure is real, but most single homes will land well below it. Ask your installer for the unit's heating capacity at 8.3°C in writing, and do the multiplication yourself before you sign.

What's the mistake that loses the whole rebate?

Installing first. The program says pre-approval is mandatory, and installations completed before approval are not eligible. The order is fixed: choose a contractor from the program's participating contractor list, the contractor submits the pre-installation application, you wait for approval, then the work happens. After the install, the contractor files the post-installation application, and the program says the cheque should arrive by mail within 60 days of approval.

That makes the contractor choice part of the rebate, not just part of the job. An installer who isn't on the participating list can do excellent work and still cost you the cheque.

Does my house qualify at all?

The program's own conditions, as published on its heat pump page: you must own the home (where an owner has tenants, the owner applies); the home must be a single detached, semi-detached, row house, townhome, or mobile home on a permanent foundation; and new builds don't qualify. You need to be either an Enbridge Gas residential customer who heats mainly with natural gas, or connected to the Ontario electricity grid and heating with electricity, oil, propane or wood. The heat pump itself must be on Natural Resources Canada's qualified products list.

No home energy assessment is required for a heat pump on its own. The assessment only comes in if you want the separate bundle rebates for things like insulation, windows and air sealing, which need an assessment plus two or more upgrades.

Is a heat pump still worth it for a gas-heated home on $2,000?

Sometimes, but the rebate isn't the reason. For a gas home the stronger arguments are replacing an air conditioner that's due anyway (a heat pump cools as well as heats) or keeping the furnace as backup for the coldest nights. The rebate takes a few hundred dollars a ton off. It doesn't change the answer the way $1,250 a ton does for an electric, oil or propane home.

If you heat with oil or propane, the numbers tilt hard the other way. Those homes get the higher rate per ton on the same equipment. That's the case where it pays to get quotes this season.