26th November 2019


Do electric heaters use up alot of electricity?

Divide the number of watts by 1000 and multiply the result by 1.5. Multiply this result by the cost per kilowatt-hour of electricity for the cost per hour to use your heater. A 1500-watt heater costs about 15 cents per hour to operate.

How much power does a space heater use?

The electric space heaters tested at Consumer Reports use 1,500 watts to fully power. Since you should never use a space heater while sleeping, it would cost $2.82 a day to use a space heater 16 hours a day, based on the national average electricity rate.

How much power does an electric heater use?

So a 3kW heater will use 3kW (3000 watts) per hour and cost roughly 43 pence to run* or £3.43* for 8 hours. The power rating (watts/kWs) will dictate the running costs; the higher the watts the more it costs to run. For a quick comparison see sust-it's Electric Heating Cost Calculator.
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