Absorption heat pumps use an ammonia-h2o absorption cycle, instead of a vapor-compression cycle, to transfer heat. Ammonia would be the refrigerant, and drinking water may be the absorber. The ammonia condenses at one of many program’s coils to release heat and evaporates at the opposite coil to soak up heat. https://single-bookmark.com/story20428545/absorption-heat-pumps-things-to-know-before-you-buy