Solar water heaters and electric water heaters and gas water heaters in series should pay attention to the problem
1. Drying problem Water storage type electric water heater is by the pressure of the water inside the top of the hot water out, so the water tank is always full, do not have to consider the issue of dry. If the solar water is finished, of course, electric water heater can not release the water, if your electric water heater is a separate water supply through the solar water heater through the three links can also make tap water, if it is two-way can be water, through the three links And water valve to control the water supply of electric water heaters, when the water in the solar water heater run out, you can switch the three water valve from the water supply, so you can ensure that the water heater is always water. If the solar water alone, the best installation of three links and water valve to achieve two-way water supply, the use of more convenient.
2. Pipeline problems in the row when the pipeline must be a professional installation team for pipe, pipe chaos easily lead to solar and electric water heater at the same time without water supply, can not be normal water.