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.
This house has a heat pump installed.
Heat pumps are effective for energy saving.
A less common native Japanese term, sometimes used in technical literature.
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.
Air-source heat pumps use heat from the outside air.
Ground-source (geothermal) heat pump, used for higher efficiency.
Water-source heat pump, less common in residential settings.
When 'heat pump' refers to the heating function of an air conditioner or a combined unit.
Heat pump air conditioner, emphasizing the heating capability.
A heat pump air conditioner can heat even in winter.
Heating and cooling heat pump, often used in technical specs.
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.
Ground-source heat pumps have high initial costs.
Water-source heat pumps use water from lakes or wells.
This building is air-conditioned with a heating and cooling heat pump.