Cost to run a heat pump
Short answer
Running a heat pump (~3000W, ~8 hrs/day) costs about $4.03/day, $123/month, or $1,472/year at the U.S. average of 16.8¢/kWh.
Wattage
3000 W
Per day
$4.03
Per month
$123
Per year
$1,472
Figures assume ~3000W for ~8 hours a day at the U.S. average 16.8¢/kWh. Your state's rate and your real usage change the total — enter both in the calculator.
What makes a heat pump cost what it does
A heat pump draws about 3000W and runs roughly 8 hours a day in a typical home. Run the standard formula — watts ÷ 1,000 × hours × your electricity rate — and at the U.S. average of 16.8¢/kWh that's about $4.03/day, $123/month, or $1,472/year.
Two things move that figure most: how many hours it actually runs and what you pay per kilowatt-hour. It runs hardest in temperature extremes, so summer and winter bills spike well above the average. A heat pump nominally at 3000W but used half as often costs roughly half as much — usage, not the nameplate rating, decides the bill.
Your electricity rate does the rest of the work. The same heat pump costs about $920/year in a low-rate state like Idaho (10.5¢/kWh) but $3,679/year in Hawaii (42¢/kWh) — roughly a 4× swing for the identical appliance.
What determines the cost
| Factor | Effect on cost |
|---|---|
| Wattage | A heat pump pulls about 3000W while running |
| Hours of use | Typically ~8 hr/day — double the hours and you double the cost |
| Electricity rate | What you pay per kWh (U.S. average 16.8¢) scales the whole bill |
| Efficiency & age | Newer, Energy-Star models draw less for the same job |
| Settings & duty cycle | It runs hardest in temperature extremes, so summer and winter bills spike well above the average |
| Standby draw | Many devices keep sipping power even when idle or 'off' |
Cost by electricity rate
Yearly cost to run this heat pump at a low, average, and high state electricity rate.
| Rate | Yearly cost |
|---|---|
| Low rate (Idaho, 10.5¢) | $920/yr |
| U.S. average (16.8¢) | $1,472/yr |
| High rate (Hawaii, 42¢) | $3,679/yr |
How to cut what a heat pump costs
- Cut runtime first: every hour you don't run the heat pump is the cleanest saving, since cost is hours × watts × rate.
- Check your actual electricity rate — if you're above the 16.8¢ U.S. average, the heat pump costs more than the headline figure here.
- Set the thermostat a few degrees closer to outdoor temps and seal drafts — a heat pump works far less in a tight, well-insulated home.
- Enter your own wattage, hours, and rate in the calculator for a heat pump figure tuned to your home.
Your rate & usage
Open the cost calculatorOther appliances
Frequently asked questions
How much does it cost to run a heat pump?
About $4.03 per day, $123 per month, or $1,472 per year at the U.S. average of 16.8¢/kWh, assuming ~3000W for ~8 hours a day.
How many watts does a heat pump use?
A typical heat pump draws about 3000 watts when running. Your model may differ — check its label or a plug-in power meter and enter the real number in the calculator.
How can I cut the cost of running a heat pump?
Run it less, use a more efficient model, and check whether your utility offers cheaper off-peak (time-of-use) rates. Costs also vary 4× by state, so your local rate matters a lot.