Electric baseboard heater vs. mini split heat pump (heating): running cost
A mini split heat pump (heating) is cheaper to run: about $233 a year versus $246 for an electric baseboard heater at typical use and 17.99¢/kWh, a $13 difference.
| Electric baseboard heater | Mini split heat pump (heating) | |
|---|---|---|
| Typical watts | 1,500 W | 1,100 W |
| Watt range | 500–2,500 W | 400–3,000 W |
| Typical use | 12 hours a day for 5 months a year | 14 hours a day for 5 months a year |
| Energy per year | 1,370 kWh | 1,297 kWh |
| Cost per hour | 13¢ | 11¢ |
| Cost per day | $1.62 | $1.53 |
| Cost per month | $49.28 | $46.65 |
| Cost per year | $246 | $233 |
| Per year in Hawaii (43.51¢) | $596 | $564 |
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What drives the difference
- Electric baseboard heater: Baseboard heaters draw about 250 W per foot of length. Figures are per heater; a whole house heated with baseboards typically has 6-12 of them and uses 6,000-15,000 kWh a winter.
- Mini split heat pump (heating): Inverter mini splits modulate output, so watts are average draw at rated capacity; at mild temperatures they deliver 3 or more kWh of heat per kWh of electricity. Figures are for a single zone.
Ways to cut either cost
Lets you schedule and adjust from a phone so it never heats an empty home at full set point.
See options on AmazonKeeps the outdoor coil above snow and helps defrost drainage, maintaining winter efficiency.
See options on AmazonDelivers 2-3 times more heat per kWh than resistance baseboards, cutting heating cost 50-65%.
See options on AmazonWe may earn a commission from qualifying purchases. It never changes the numbers we show. Disclosure.
Frequently asked questions
Which costs more to run, an electric baseboard heater or a mini split heat pump (heating)?
At typical use and the U.S. average rate (17.99¢/kWh), an electric baseboard heater costs about $246 a year versus $233 for a mini split heat pump (heating). That's $13 more.
How many watts do electric baseboard heater and mini split heat pump (heating) use?
An electric baseboard heater typically draws 1,500 W (range 500–2,500 W). A mini split heat pump (heating) draws 1,100 W (range 400–3,000 W). Watts alone don't decide cost. Hours of use, cycling and standby matter just as much.
Rates: EIA, 12 months ending 2026-07. Methodology.