What Is a Heat Pump• A Canadian Homeowner’s Guide (2026)

Last updated: July 2026 · Reviewed by Xolar

A heat pump is one device that both heats and cools your home — and because it moves heat instead of burning fuel to create it, it can deliver up to three times more energy than it consumes. For Canadian homeowners facing rising electricity and heating costs, a modern cold-climate heat pump is one of the most efficient ways to stay comfortable year-round, especially when paired with solar. Here’s how they work, what they cost, how they hold up in a Canadian winter, and the rebates that apply in 2026.

What is a heat pump?

A heat pump transfers heat from one place to another to provide both heating and cooling for your home. Unlike traditional systems that generate heat by burning fuel or using electric resistance, a heat pump moves existing heat using a reversible version of the same vapor-compression process an air conditioner uses. In summer it pulls heat out of your home; in winter it pulls heat from the outside air (yes, even cold air contains heat) and moves it inside. That makes it a versatile, low-cost, year-round comfort solution.

Types of heat pumps

1. Air-source heat pump (ductless mini-split or central/ducted): the most common and affordable type, it transfers heat between your home and the outside air. Ductless mini-split systems mount on the wall and are ideal for homes without ductwork or for zoning specific rooms (single- or multi-zone); central/ducted systems tie into existing ductwork to heat and cool the whole house.
2. Ground-source (geothermal) heat pump: transfers heat between your home and the ground. Extremely efficient and consistent, but more expensive because of the trenching or drilling required.
3. Water-source heat pump: uses a nearby body of water to transfer heat. Highly efficient where available, but uncommon for typical residential homes.

For most Canadian homes, an air-source heat pump — ductless or ducted — is the right balance of cost, size, and performance.

How does a heat pump work?

A heat pump moves heat rather than generating it, operating like a refrigerator or air conditioner that can run in reverse:

• Absorption: even in cold weather there is heat in the outside air; the heat pump absorbs it.
• Compression: that heat is compressed, which raises its temperature to a level useful for heating your home.
• Distribution: the heat is released indoors and distributed through your ducts or a wall unit.

In cooling mode the cycle reverses — the system pulls heat from inside your home and releases it outdoors, exactly like central air conditioning.

Do heat pumps work in Canadian winters?

Yes. This is the biggest misconception about heat pumps. Older units struggled in deep cold, but modern cold-climate air-source heat pumps are specifically engineered for Canadian winters — many are rated to keep heating efficiently in temperatures around -25°C and below. In the coldest snaps, systems are typically set up with a backup electric or existing furnace stage (a “dual-fuel” or “hybrid” setup) so you always have full heat. For the vast majority of the heating season, the heat pump does the work far more efficiently than a furnace or baseboards. If you’re choosing equipment, look for a model on Canada’s cold-climate heat pump list.

Heat pump vs. furnace: which is better?

A gas or oil furnace burns fuel to make heat; a heat pump moves heat using electricity. Here’s how they compare:

For most Canadian homes, a cold-climate heat pump (optionally with a backup stage) lowers both emissions and operating cost — and if you generate your own electricity with solar, you can heat and cool your home on the power from your roof.