A device that transfers heat from a lower-temperature source to a higher-temperature sink, used for heating or cooling. The more common term is ヒートポンプ.
See also: ヒートポンプ
This building is heated by a heat pump.
Heat pumps help save energy.
Compound of 熱 (netsu, 'heat') and ポンプ (ponpu, from English 'pump'). A calque or partial translation of English 'heat pump'.