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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
There are energy-efficient heat pumps in each room as well as on-demand hot water heaters.
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Marquita K. Harris, Travel + Leisure, 6 Feb. 2025
In summer, your heat pump will do the opposite and release heat from your home to the outdoors, much like a traditional air conditioner.1
Types Of Heat Pumps
There are two major kinds of heat pumps: air-source heat pumps and geothermal heat pumps.
—
Brandee Gruener, Southern Living, 28 Jan. 2025
Eversource’s heat pumps are powered by the New England electricity grid, which still heavily relies on natural gas.
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Rachel Ramirez, CNN, 20 Jan. 2025
The unit comes equipped with a 9,000-BTU ductless A/C with heat pump for both warm and cold weather and is fully insulated.
—
New Atlas, 2 Feb. 2025
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Word History
First Known Use
1894, in the meaning defined above
Dictionary Entries Near heat pump
Cite this Entry
“Heat pump.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heat%20pump. Accessed 19 Feb. 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
Britannica.com: Encyclopedia article about heat pump
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