Solar water heaters generally do not need to maintain a constant temperature, because solar water heaters use solar radiation to heat water, and the amount of solar radiation is closely related to weather conditions such as solar altitude angle and clouds. the water temperature of solar water heaters is difficult to adjust consistently.
However, in order to better utilize solar energy to heat water, some auxiliary devices can be installed in the solar water heater, such as thermostats, water pumps, etc., to achieve constant temperature or heat preservation functions. , which can make users more satisfied with the use of water heaters.
In addition, the hot water demand of solar water heaters in different seasons is also different, so its use should also be adjusted according to the seasons. For exampleple, in summer, the amount of solar radiation is large, which often causes the water temperature to be too high. So it is necessary to open the mixing valve to reduce the water temperature of the solar water heater to a suitable range. In winter, supplementary heating equipment should be added according to actual needs to ensure that the water temperature meets demand.