In the north, you should choose evacuated tube solar power. Good solar energy can also produce hot water in winter.
In the Yellow River Basin and areas north of it, it is not recommended to choose flat panel solar energy. Since the flat panel dissipates a lot of heat, the water may not be hot in winter.
Not all solar energy from vacuum tubes can be used in winter. Pay attention to the selection: the vacuum tube has good heat absorption performance and high vacuum degree; the water tank should be made of polyurethane foam, especially the connection between the water tank and the upper and lower water pipes is particularly easy to freeze and block; In winter, good solar energy has anti-falling pipe modules.