Heat pumps move heat rather than generate it, making them more efficient than resistive heating, but they still draw considerable power in cold climates. Performance degrades in very cold weather, sometimes requiring supplemental resistive heat that burns more energy.
| Basis | Cost |
|---|---|
| Per hour (while running, 4000 W typical) | $0.75 |
| Per day (8 h/day, 7/7 days) | $6.03 |
| Per month | $183.42 |
| Per year | $2,200.85 |
| Hourly range (small 2500 W – large 6000 W) | $0.47 – $1.13 |
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