Absorption heat pumps use an ammonia-water absorption cycle, instead of a vapor-compression cycle, to transfer heat. Ammonia may be the refrigerant, and drinking water would be the absorber. The ammonia condenses at one of several technique’s coils to launch heat and evaporates at another coil to absorb heat. In comparison https://purethermal.co.uk/media-news/can-gas-absorption-heat-pumps-provide-an-alternative-heat-pump-option-in-2025/