This article explains the role of domestic hot water in air source heat pumps, covering monobloc and split systems, efficiency, underfloor heating integration, and key selection tips.

Heat pumps are attracting considerable attention due to their remarkable advantages. A heat pump is an efficient energy conversion device that transfers low-grade thermal energy from the environment into high-temperature heat, working similarly to refrigerators but in reverse for heating. It operates by compressing and expanding refrigerant in a cyclic process. This enables it to transfer a large amount of environmental heat with minimal electricity, providing both heating and cooling, thus being highly energy-efficient. Compared to traditional heating and cooling methods, heat pumps can generate 3 - 4 times more heat energy than the electricity they consume, reducing energy use by up to 50%. They are applicable in various scenarios: heating by extracting heat from the outdoors, cooling by reversing the operation, and heating domestic water with significant energy savings.