Yes. The fully automatic solar water heater will be equipped with a return pipe, that is, once the hot water flows out from the hot water outlet, it returns inside the water heater through the return pipe, forming a water cycle and improving the thermal energy utilization efficiency of the water heater. The function of the return pipe is to prevent hot water from being used in time after entering the pipe at the hot water outlet, resulting in wasted energy.
The principle is very simple! But the installation itself is not easy to implement! The real situation of each family is different! It is recommended to install the water return line behind the water point! The sensor is also placed behind the water point! The water pump must be in front of the water point! Can be used as a booster pump! Finally, there are the conditions to start backwater! depending on the actual stateL ! Don't set it too high! 20-30 degrees Celsius is enough!