When the solar water heater is not in use, simply cover the collector tube with something opaque, such as fiberboard, cardboard, plywood, etc. And the water heater must be filled with water to prevent the water from evaporating and leaving the collector tube empty of water.
If it's winter, drain all the water from the water heater to prevent freezing.
What to do if the solar water heater is no longer used
Solar water tanks and vacuum tubes are not affected by frost. Generally, connecting water pipes have poor insulation. effect and are easily damaged by frost.
If the insulation effect of the water pipes connecting the upstream and downstream solar water is not good, all the water should be drained to prevent freezing. However, in order to prevent the vacuum tube from burning and reducing its service life, the vacuum tube must be covered with something and fixed to prevent it from being exposed to the groundeil.
The part circled in red is covered. What type of cover should be used? It is sold online and can be purchased online
If the solar water heater is no more. used, there are three disposal methods as follows:
First, if you no longer use it, you can sell it directly, but it will only cost a few hundred yuan at most, which does not costs nothing - effective.
Second, do not use it for a short time. Drain the water, turn off the water and electricity, and cover the solar water heater with a shade net or tarpaulin to avoid damage caused by dry sunlight or damage caused by continuous heating due to problems with the instrument.
Third, if it is not used for a long time, it should use the water heater installation position. Drain the water, disassemble it, clean it and store it in a safe place in case of emergency.