Absorption heat pumps use an ammonia-drinking water absorption cycle, as an alternative to a vapor-compression cycle, to transfer heat. Ammonia would be the refrigerant, and drinking water will be the absorber. The ammonia condenses at among the system’s coils to release heat and evaporates at another coil to soak up https://purethermal.co.uk/media-news/can-gas-absorption-heat-pumps-provide-an-alternative-heat-pump-option-in-2025/