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How much does it cost to run a space heater? ($30.60/mo)
Running a space heater costs about $30.60 / month
($1.02/day at 4 h/day, $0.17/kWh).
($1.02/day at 4 h/day, $0.17/kWh).
Running cost calculator
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A portable space heater turns electricity directly into heat, so almost every watt it draws shows up on your bill.
Cost at different electricity rates
| Electricity rate | Per day | Per month | Per year |
|---|---|---|---|
| $0.10/kWh | $0.60 | $18.00 | $219.00 |
| $0.15/kWh | $0.90 | $27.00 | $328.50 |
| $0.20/kWh | $1.20 | $36.00 | $438.00 |
| $0.25/kWh | $1.50 | $45.00 | $547.50 |
| $0.30/kWh | $1.80 | $54.00 | $657.00 |
| $0.40/kWh | $2.40 | $72.00 | $876.00 |
Cost over time
| Per hour of use | $0.26 |
| Per day (4 h) | $1.02 |
| Per month | $30.60 |
| Per year | $372.30 |
How to spend less running a space heater
- Cut the hours: A space heater at 4 h/day runs about $30.60/month — trimming one hour saves roughly $7.65/month.
- Tune the setpoint: a degree or two changes how long the space heater has to run.
- Upgrade efficiency: a newer space heater near 750 W uses far less than an old 1,500 W one.
Want the raw figure? See how many watts a space heater uses.
FAQ
How many watts does a space heater use?
Most plug-in space heaters draw 750-1500 watts on full heat.
Are space heaters expensive to run?
Yes - at 1500 W and average rates, a few hours a day adds up to real money over a winter.
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