heat pump

noun

: an apparatus for heating or cooling (such as a building) by transferring heat by mechanical means from or to an external reservoir (such as the ground, water, or outside air)

Examples of heat pump in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Lowers Heating Costs Because covered windows improve heat retention, your furnace or heat pump doesn’t have to work as hard, lowering your heating bill in the process, says HVAC expert Tamer Sayed. Louise Parks, Martha Stewart, 10 Jan. 2026 Electric vehicles and heat pumps deliver superior performance and comfort without health- and climate-destroying pollution and use only a fraction of the energy of their fossil-fuel counterparts. Anshul Gupta, New York Daily News, 7 Jan. 2026 Within this process, air from inside your home is part of the equation to producing heat versus the outside air that heat pumps use. Ashlyn Needham, Southern Living, 27 Dec. 2025 Regulators approved a plan in 2024 by Xcel to invest $440 million, including money for rebates for heat pumps and energy efficiency. Judith Kohler, Denver Post, 22 Dec. 2025 See All Example Sentences for heat pump

Word History

First Known Use

1894, in the meaning defined above

Time Traveler
The first known use of heat pump was in 1894

Browse Nearby Words

Cite this Entry

“Heat pump.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heat%20pump. Accessed 12 Jan. 2026.

Kids Definition

heat pump

noun
: a device for heating or cooling a building by transferring heat contained in a fluid to or from the building

More from Merriam-Webster on heat pump

Last Updated: - Updated example sentences
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