What kind of air source heat pump is suitable for use in low temperature weather environments?

Air can be used well in the south and is suitable for hot water projects in hotels, schools, and baths in the south. However, air can be used for heating in winter in the north, which is really average. Air energy has never been the main force in replacing coal with electricity in the north.

The air source heat pump works according to the "reverse Carnot" principle. It operates through the compressor system, absorbs the heat in the air, and then transfers the air heat to the water tank to heat the cold water in the water tank. Finally, hot water is produced. Air energy is linked to the outside world. The lower the temperature outside in winter, the more power consumption of air energy.

When an air source heat pump operates in an environment of minus 15°C, the thermal efficiency will be greatly reduced, the power consumption will rise sharply, and it may even be directly frozen. In cold areas in winter, air source heat pumps must maintain a high load to barely meet the heating needs, but at the same time, they consume huge amounts of electricity.