What are the disadvantages of air source heat pump? Is it suitable for use in the north?

The air source heat pump has a wide working range, and the national coal-to-electricity and coal-to-gas projects are in full swing in Beijing, Tianjin and Hebei. Air source heat pump is widely used, with obvious heating and energy saving! The air source heat pump can be used normally at -7 to 40 degrees. But can it be used normally in the extremely cold northeast? With the technical upgrading of air energy industry and the "enhanced steam injection" technology of Paiwo air energy, the ultra-low temperature EVI enhanced steam injection heat pump of Paiwo air energy heating and cooling unit can make the air energy heat pump work normally in extremely cold weather (-25 degrees) without any problems.

To sum up, it is no problem to use air source heat pump in cold northern areas!