It will take time for air energy water heaters to replace traditional water heaters. How to put it another way?

It was before the earth people digested the technology of zentraedi, and this thing was north of the Yellow River. No, no, it was a tragedy north of the Huaihe River.

Every air energy manufacturer should spend more energy to improve the cop value, especially in the case of high humidity and low temperature, instead of preparing the whole world to fool people, not to stink up a promising industry, and there is no future in comparison with each other.