Translation guide
A device that transfers heat from a colder area to a warmer area, used for heating or cooling. In Japanese, the term is usually expressed with the loanword ヒートポンプ or the native compound 熱ポンプ.
Referring to the device itself, in technical or everyday contexts.
The most common and widely understood term, used in both technical and consumer contexts.
この家にはヒートポンプが設置されています。
This house has a heat pump installed.
ヒートポンプは省エネに効果的です。
Heat pumps are effective for energy saving.
A less common native Japanese term, sometimes used in technical literature.
熱ポンプの原理を説明します。
I will explain the principle of the heat pump.
Referring to particular kinds of heat pumps, such as air-source or ground-source.
Air-source heat pump, the most common type for residential use.
空気熱源ヒートポンプは外気の熱を利用します。
Air-source heat pumps use heat from the outside air.
Ground-source (geothermal) heat pump, used for higher efficiency.
地中熱ヒートポンプは初期費用が高いです。
Ground-source heat pumps have high initial costs.
Water-source heat pump, less common in residential settings.
水熱源ヒートポンプは湖や井戸の水を利用します。
Water-source heat pumps use water from lakes or wells.
When 'heat pump' refers to the heating function of an air conditioner or a combined unit.
Heat pump air conditioner, emphasizing the heating capability.
ヒートポンプ式エアコンは冬でも暖房できます。
A heat pump air conditioner can heat even in winter.
Heating and cooling heat pump, often used in technical specs.
このビルは冷暖房ヒートポンプで空調しています。
This building is air-conditioned with a heating and cooling heat pump.
In everyday Japanese, ヒートポンプ is well understood, especially in contexts of energy-efficient housing. You can simply say ヒートポンプ without specifying the type unless necessary.
Do not attempt to translate 'heat pump' as 熱のポンプ or similar; it is not natural. Stick to ヒートポンプ or 熱ポンプ.