Heat Pump vs Air Conditioner in BC: Which Should You Install?
After the 2021 heat dome and every hot summer since, a lot of BC homeowners are adding cooling for the first time. The first quote is often for a central air conditioner. The question worth asking is: why not a heat pump?
The Problem: An AC Only Does Half the Job
An air conditioner and a heat pump are built from the same parts: an outdoor unit with a compressor and coil, an indoor coil or head, and refrigerant lines between them. In summer they do exactly the same thing.
The difference is one component. A heat pump has a reversing valve that runs the cycle backwards in winter, pulling heat from the outdoor air and delivering it inside. An air conditioner can't do that, so it sits idle for half the year.
Side-by-Side
| Air conditioner | Heat pump | |
|---|---|---|
| Summer cooling | Yes | Yes, the same |
| Winter heating | No | Yes |
| Equipment cost | Lower | Usually somewhat higher for the same size |
| BC rebates | None | Available in some cases (see below) |
| Winter running cost | No effect | Can lower heating bills, especially vs. electric baseboard |
| Keeps your furnace | Yes | Yes, with a dual-fuel setup, or replaces it |
When a Heat Pump Is the Clear Choice
- Electric baseboard or electric furnace homes. A heat pump delivers two to three units of heat per unit of electricity in typical BC winter weather, where baseboard delivers one. BC Hydro's rebate for switching from electric resistance heat is up to $4,000 when the heat pump meets 100% of the heating load at −5°C, or $1,500 when it meets at least 50%.
- Income-qualified households. The CleanBC Energy Savings Program can cover 100% of eligible heat pump costs up to the program caps, which depend on income level and your current heating fuel. An air conditioner doesn't qualify.
- You're replacing an AC anyway. The extra cost of a heat pump over a same-size AC is usually modest, and you get heating capacity for the shoulder seasons at no extra installation work.
When an AC Can Still Make Sense
- Gas-heated home with a newer furnace and tight budget. If you only want cooling and electricity is the only thing you're adding, a basic AC is the lowest upfront cost. Even then, a heat pump paired with the existing furnace (dual fuel) is worth pricing, because it can heat on mild days and leave the furnace for the cold ones.
- Very short cooling season and no heating benefit. For a rarely used cottage or a space already heated another way, an AC may be enough.
The Gas Furnace Question
If you heat with natural gas, you have three options when adding cooling:
- AC + keep the furnace. Lowest upfront cost. No change to winter heating.
- Heat pump + keep the furnace (dual fuel). The heat pump heats in mild weather and the furnace takes over in the cold. FortisBC's income-qualified dual-fuel rebate pays up to $8,000 to replace a gas furnace that is 15+ years old with a central ducted heat pump, a new high-efficiency furnace, and a connected thermostat. It can't be combined with other provincial or federal rebates. FortisBC's standard (non-income-qualified) dual-fuel rebate is no longer available.
- Heat pump as the main heat source. The income-qualified Energy Savings Program funds gas-to-heat-pump conversions. Without it, there's currently no standard BC rebate for gas-heated homes switching to a heat pump.
Whether a heat pump costs less to run than gas depends on your rates and climate. Ask for an operating cost comparison with your actual FortisBC and BC Hydro rates.
Technical detail: sizing for cooling vs heating
An air conditioner is sized to your cooling load. A heat pump has to serve both loads with one compressor, and in most of BC the heating load is larger. A system sized only for cooling may need more backup heat in winter. One sized only for heating can be oversized for summer cooling, which hurts dehumidification.
Variable-speed (inverter) heat pumps cover a much wider range of output, so one unit can usually serve both loads well. The selection should start from a CSA F280 heat loss and heat gain calculation, not from the size of the old AC.
For BC Hydro's whole-home rebate, the heat pump has to meet 100% of the heating load at −5°C. That's a heating-side sizing requirement, so make sure your contractor sizes for it if you're claiming the rebate.
Frequently Asked Questions
Is a heat pump just an air conditioner?
In cooling mode, yes. A heat pump uses the same refrigeration cycle as an AC, plus a reversing valve that lets it heat in winter.
Does a heat pump cool as well as an air conditioner?
Yes. At the same capacity and efficiency rating, a heat pump cools exactly like an AC.
Is a heat pump worth it over AC if I have gas heat?
Often, if you price it as dual fuel. The heat pump handles mild-weather heating and the furnace covers cold snaps. Whether it saves money depends on your gas and electricity rates.
Are there rebates for air conditioners in BC?
No. BC's heat pump rebates (BC Hydro, CleanBC Energy Savings Program, and FortisBC's income-qualified dual-fuel rebate) apply to heat pumps, not cooling-only air conditioners.
Next Steps
- Heat pump rebates in BC (2026) — what each program covers and who qualifies
- Dual fuel vs all-electric in the Interior — keeping the furnace vs going fully electric
- Ductless vs ducted heat pumps — which system type fits your home
- BC heat pump rebate calculator — estimate your rebates
A heat pump plus backup heat can be a big new electrical load. Check your panel before you get quotes: