Can the solar water heater be used in rainy or cloudy days?

Solar water heaters can be used in rainy days.

The vacuum tube of solar water heater is installed on the roof, which can collect heat in rainy days, but compared with sunny days, the water temperature will not heat so fast, and the temperature may not reach the effect of sunny days.

There are many brands of solar water heaters, including automatic water replenishment and semi-automatic water replenishment. At night, we use the hot water kept warm in the reservoir. Generally, the heat collection area and hot water storage capacity of solar water heaters are configured as required, so there is no need to worry about the situation of no hot water after washing.

Extended data:

Daily maintenance

1. When installing the solar water heater, the water pipes may be stained with dust or oil smell. When you use it for the first time, you can turn on the faucet to remove impurities.

2. The stored water in the solar water heater should be discharged regularly according to the local water quality, and the discharge time can be selected when the collector is low in the morning.

3. When it rains, the surface of the solar water heater can be cleaned by itself, and the surface of the solar water heater can be kept clean, so that higher heat collection efficiency can be obtained.

When hot water is not used in sunny days, the temperature of hot water is very high. When using solar water heater, please turn on cold water first, then hot water to avoid scalding.

5. There is generally a filter screen device at the outlet end of the faucet, and the scale impurities in the water pipe will gather in this net, so it should be cleaned regularly to increase the smooth water flow.

6. In winter, pipeline icing is very common. If the pipeline is found to be frozen but not cracked, it can be dredged automatically after the temperature rises. You can also blow it with a hair dryer, or wrap a towel around the water pipe and slowly pour in warm water. Never bake with fire, tap the pipe or scald with boiling water, which will burst the pipe. Repeated freezing blocking is easy to crack the pipeline, so it is necessary to strengthen the insulation measures of the pipeline.

7. Solar water heaters need to be cleaned, inspected and disinfected every two to three years on average. Users can also do some disinfection work by themselves. For example, they can buy some chlorine-containing disinfectant and pour it into the water inlet, let it soak for a period of time, and then release it, which can play a certain disinfection and sterilization role.

Reference link: Baidu Encyclopedia-Solar Water Heater