Absorption heat pumps use an ammonia-h2o absorption cycle, instead of a vapor-compression cycle, to transfer heat. Ammonia is definitely the refrigerant, and water will be the absorber. The ammonia condenses at one of several process’s coils to launch heat and evaporates at the opposite coil to soak up heat. In https://purethermal.co.uk/media-news/can-gas-absorption-heat-pumps-provide-an-alternative-heat-pump-option-in-2025/