Mainly used in large-scale solar hot water. Forced circulating solar water heater, between the collector and the storage tank, installed temperature difference controller and water circulation pump, can properly control the temperature difference between the collector and the storage tank, as well as the time of pumping ring water, the system heat collection efficiency is higher, and the location of the storage tank does not have to be higher than the heat collector, so can reduce the design restrictions, more suitable for large-scale system use.
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