The water temperature in the solar water heater can reach a maximum of 100°C. From the first stages of the design of the solar water heater, the problem of combustion and aging of the components was taken into account. the heaters will not turn off.
However, it is recommended not to maintain high temperatures permanently. If the temperature remains high for too long, it will accelerate the aging of the water tank coating and various accessories. Therefore, it is recommended that when the solar water heater is not used for a long time, the automatic water supply function should be turned off or the water in the solar water heater can be drained.
Are you using a vacuum tube water heater?
If the temperature of the water heater is too high, it will easily scale, damage the tank water and vacuum tubes, and reduce its lifespan. solar energyt increase maintenance costs.
There is a very stupid but economical and simple way, which is to cover the heat collector plate with a piece of cloth or paper. Do not cover it completely and leave half for lighting. This way the temperature will not rise too quickly and be too high.