A heat pump water heater is a highly efficient heat energy lifting and transfer device based on the reverse Carnot cycle. It uses a small amount of electricity as power and refrigerant as a carrier to continuously absorb low-grade heat energy from the air, converting it into usable high-grade heat energy. This high-grade heat energy is then released into the water that needs heating, producing domestic hot water, which is then delivered to users through hot water pipes.
It can transfer heat from low-temperature heat sources (such as air, soil, seawater, groundwater, etc.) to the water that needs heating, thus achieving the function of heating water.