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
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These innovations allow for a very efficient product--a heat pump water heater--to become even more efficient. Erik Kobayashi-Solomon, Forbes.com, 17 July 2025 Rooftop solar projects and heat pump sales also are likely to decrease, the agency said. Calmatters, Mercury News, 16 July 2025 These programs typically target central air conditioners (AC) and heat pumps, since cooling equipment drives spikes in summer energy demand. Kurt Knutsson, FOXNews.com, 14 July 2025 Those projects can include heat pumps, subject to state-level eligibility and application rules. Rob Pegoraro, PC Magazine, 11 July 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

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Cite this Entry

“Heat pump.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heat%20pump. Accessed 7 Aug. 2025.

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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