Solar Water Heater Closed Loop Pumps

The solar water heater closed loop pumps include variable speed and 3-speed models that are made for using with solar fluid system that consists of nontoxic glycol mixed with water. The circulation pump operates when the sun shines on the collectors, and the solar fluid is circulated in the closed loop. This pump, if DC-powered, can be wired to a photovoltaic cell mounted on the collectors or can be connected to 120-volt electric power if an AC-powered pump is used.

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