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.
Until just a few years ago, my wife and I didn’t have air conditioning, but smoke from wildfires combined with hot temperatures prompted us to install a heat pump with split units in our living room, bedroom and guest room to keep our home cooler in the summer and warmer in the winter. Larry Magid, Mercury News, 4 June 2026 Offering a yearly $50 electric bill credit and encouraging residents to go solar and install heat pumps won’t stop the electricity crisis. Jennifer Nassour, Boston Herald, 4 June 2026 Homeowners who live in states like New York and California can save thousands by upgrading to an energy-efficient HVAC system or heat pump. Alora Bopray, USA Today, 4 June 2026 When a building is too hot, heat pumps suck heat from the interior air and dump it into the circulating water. Ishan Thakore, NPR, 20 May 2026 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 10 Jun. 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

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