Department of Energy

Heat Pumps

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Energy 101: Geothermal Heat Pumps
Geothermal heat pumps are expensive to install but pay for themselves over time in reduced heating and cooling costs. Learn more about how geothermal heat pumps heat and cool buildings.

In moderate climates, heat pumps can be an energy-efficient alternative to furnaces and air conditioners. Several types of heat pumps are available, including air-source; geothermal; ductless, mini-split; and absorption heat pumps. Learn more about the different options and how to use your heat pump efficiently to save money and energy at home.

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Heat Pump Systems
Live in a mild climate? A heat pump might be your best option for efficient heating and cooling.
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Operating and Maintaining Your Heat Pump
Want to get the most out of your heat pump? Proper operation and maintenance of your heat pump will ensure that the system functions at optimal ene...
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Air-Source Heat Pumps
If you live in a warm climate, air-source heat pumps might be an efficient way to cool your home, and advances in technology are improving their ef...
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Ductless, Mini-Split Heat Pumps
Installing this kind of heat pump in your new or existing home can save money while improving the efficiency of how you heat, ventilate, and air co...
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Absorption Heat Pumps
Absorption heat pumps are air-source heat pumps that run on a heat source -- usually natural gas -- rather than electricity.
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Rebates & Tax Credits

Federal tax credits for heating and cooling systems expired at the end of 2016. If you made these improvements in 2015 or 2016, file form 5695 with your taxes to claim the credit.
​Learn more about the tax credits and find state or local incentives.