После установки обратного клапана в водонагреватель горячая вода будет поступать в любое время и в любом месте зимой
First, what is the heated water circulation system?
The principle is also simple. A water pipe is added at the outlet of the hot water pipe to form a closed circuit. The recirculation pump is connected to the water heater. When the tap is turned on, the circulating pump automatically pumps the cold water from the water pipe back to the water heater to reheat, and even when it is not used, it is still circulating.
Second, which water heaters are suitable for the heater water circulator?
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