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How Much Does It Cost to Run a Space Heater in Canada? (2026)
Portable electric space heaters are one of the most expensive appliances to run per hour. Almost all plug-in models top out at 1,500 watts because that is the limit of a standard household outlet, so the main cost driver is how many hours you leave it on.
A typical space heater (1,500 W) costs C$0.21 per hour, or about C$37.80 per month at 6 hours a day in Canada (average). Expensive to run
| Wattage | Per hour | Per day | Per month | Per year |
|---|---|---|---|---|
| Low (750 W) | C$0.11 | C$0.63 | C$18.90 | C$229.95 |
| Typical (1,500 W) | C$0.21 | C$1.26 | C$37.80 | C$459.90 |
| High (1,500 W) | C$0.21 | C$1.26 | C$37.80 | C$459.90 |
Formula: watts ÷ 1000 × hours × price per kWh. Typical use is 6 h/day ≈ 3,285 kWh per year.
In Canada, with electricity at C$0.14 per kWh (source: Canada Energy Regulator 2026 market snapshot, 2026-06), a typical space heater costs C$0.21 per hour and about C$459.90 per year at 6 hours a day. Each C$1.00 of electricity buys roughly 4.8 hours of use.
How to lower the cost of running a space heater
- Heat only the room you are in and close the door. A space heater warming a whole house costs more than central heating.
- Use the low setting (usually 750 W) once the room is warm. It halves the running cost.
- Pair it with a plug-in timer or a smart plug so it never runs overnight by accident.
- A heater with a thermostat cycles on and off, so real consumption is often 30 to 50 percent below the rated wattage.
Frequently asked questions
Does a space heater use a lot of electricity?
Yes. At 1,500 watts it draws as much as a microwave, and it usually runs for hours rather than minutes.
Is it cheaper to run a space heater or central heating?
For a single small room, the space heater is usually cheaper. For more than one or two rooms, central heating wins.
Are oil-filled heaters cheaper to run?
Not per hour. All resistive heaters convert electricity to heat at the same efficiency. Oil-filled models just hold heat longer after switching off.
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