How Does a Heat Pump Works?

Air source heat pump water heater is a device that moves heat from the outside air to heat water, then satisfies the user's daily demand for hot water. Its working principle is based on the Reverse Carnot Cycle principle.

Usually, a heat pump water heater has four main components: evaporator, compressor, condenser, and expansion device. The refrigerant is the medium to connect the four parts. Just using a little amount of electric power, the gas refrigerant in the compressor will be pumped into high temperature and high-pressure gas. After flowing through the heat exchanger, the heat will be released into the water to satisfy the user's demand. After that, the refrigerant becomes middle temperature and middle-pressure liquid. The refrigerant continues moving to the expansion device and becomes low temperature and low-pressure liquid. When flowing through the evaporator, the refrigerant will be evaporated to gas and back to the compressor. The cycle starts again.

In the condition of producing the same volume of hot water, NEW ENERGY heat pump water heater only consumes 1/4 electric power when compared with the electric water heater. For the user, it can reduce a lot of daily expenditure. Because of its energy-saving and eco-friendly characteristics, the air source heat pump water heater has been regarded as the fourth generation water heater.


As a professional heat pump water heater manufacturer, NEW ENERGY provides 5 kinds of residential water heater products, they are all-in-one heat pump water heaters, smart heat pump boilers, split type heat pump water heaters, water circulated heat pump water heaters. They serve various applications of different requirements.