How Much Electricity Does a Heat Pump Use?
So how much electricity does a heat pump use? A central heat pump typically draws 750 to 4,000 watts in cooling mode and up to about 6,700 watts in heating mode, depending on system size (1 to 5 tons). Because it's sized to condition an entire house, it's usually one of the largest single contributors to an electric bill — use the calculator below with your own system's wattage and rate for a real estimate.
This page covers a central, ducted heat pump. If you have a single-room or zone ductless system instead, see our mini split guide — a mini split is technically a type of heat pump, just sized and installed differently.
Calculate your cost to run a central heat pump
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What affects how much electricity a central heat pump uses
System size, measured in tons, is the main factor, with larger homes needing bigger, higher-wattage systems. Outdoor temperature matters more for a heat pump than for most appliances, since it works harder (and draws more) to pull heat from cold outside air in winter or reject heat into hot outside air in summer. Efficiency ratings (SEER for cooling, HSPF for heating) also affect how much electricity the system needs to deliver the same amount of heating or cooling.
How to reduce your heat pump's electricity use
- Keep filters clean, since restricted airflow makes the system work harder for the same result
- Set a consistent thermostat schedule rather than large temperature swings, since a heat pump recovers from a big swing less efficiently than a furnace or standard AC does
- Have the system serviced annually so refrigerant charge and airflow stay within spec
- Improve home insulation and seal air leaks, since a heat pump has to run longer to compensate for lost conditioned air
Typical wattage figure: roughly 750-4,000 W in cooling mode and up to about 6,700 W in heating mode, depending on system size (1-5 tons). Source: EnergySage — How Much Energy Does a Heat Pump Use?. This is a commonly cited industry estimate, not a government-published figure. Actual draw depends on outdoor temperature, since a heat pump works harder to pull heat from colder outside air. We review this figure periodically and update it if the source changes; last checked September 2026.
Frequently asked questions
How many watts does a heat pump use?
A central heat pump typically draws 750 to 4,000 watts in cooling mode, scaling with system size from 1 to 5 tons, and up to roughly 6,700 watts in heating mode, based on a commonly cited industry estimate. This is not a government-published figure; your system's exact draw depends on its size and efficiency rating.
How much does it cost to run a heat pump?
A 3-ton system drawing roughly 2,250 watts and running 8 hours a day at the U.S. average rate of about 16.5 cents/kWh costs roughly $2.97 a day, or about $89 a month during peak heating or cooling season. Use the calculator above with your own system's specs and rate for a tailored estimate.
Why does my heat pump use more electricity in winter than summer?
A heat pump has to work harder to pull heat out of cold outside air than to move heat out of a house in cooling mode, so its wattage draw and runtime both tend to climb as outdoor temperature drops, especially below freezing.
How can I reduce how much electricity my heat pump uses?
Keep filters clean so airflow isn't restricted, set a steady thermostat schedule rather than large swings, and have the system serviced annually to keep refrigerant charge and airflow within spec, since a poorly maintained system can use noticeably more electricity for the same comfort.
This page provides estimates based on a commonly cited industry estimate, not a government-published figure, and the numbers you enter. Actual electricity cost depends heavily on your specific system size, efficiency rating, and outdoor temperature.