Absorption heat pumps use an ammonia-water absorption cycle, instead of a vapor-compression cycle, to transfer heat. Ammonia may be the refrigerant, and water may be the absorber. The ammonia condenses at one of several program’s coils to release heat and evaporates at the other coil to soak up heat. This https://listfav.com/story22086037/the-definitive-guide-to-air-source-heat-pumps