noun
apparatus that extracts heat from a liquid that is at a higher temperature than its surroundings; can be used to transfer heat from a reservoir outside in order to heat a building
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noun : a device for transferring heat energy from a low-temperature locality to a high-temperature locality by mechanical means involving the compression and expansion of a fluid (as in mechanical refrigeration); specifically : an apparatus for heating or cooling a building by transferring heat from or to a reservoir outside the building (as the ground, water, or air)
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a device that uses a compressible refrigerant to transfer heat from one body, as the ground, air, or water, to another body, as a building, with the process being reversible.
[1890-95]
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heat pump noun
A device (on the refrigerator principle) for drawing heat from water, air, or the earth, and giving it out to warm, eg a room
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Main Entry: ↑heat
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a piece of equipment that carries heat from one place to another, for example in a fridge
Thesaurus: parts of machines and machinerymeronym describing machines and pieces of equipmenthyponym
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heat pump,
an electrically operated device that extracts heat from air, earth, or water.
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n. a device that transfers heat from a colder area to a hotter area by using mechanical energy, as in a refrigerator
Useful english dictionary. 2012.