Solar Water Heater

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Solar Water Heater – Solar thermal is a technology designed to harness sunlight for its thermal energy (heat). This heat is often used for heating water used in homes, businesses, swimming pools, and for heating the insides of buildings (space heating).

In order to heat water using sunlight, a solar thermal collector heats a fluid that is pumped through it. As the fluid is pumped through the collector, the fluid becomes heated. The now heated fluid then is pumped out of the collector and through a heat exchanger.

Heat exchangers are usually comprised of copper, and are normally found inside a solar storage tank. This allows the heat in the fluid to be transmitted – or exchanged, hence the name – into the water in the storage tank.

The storage tank is an essential element of any solar thermal system, as it allows all the heat being generated by the solar thermal collector to be stored for use whenever it is needed.

Solar thermal collectors are classified by the Energy Information Administration (EIA) as high, medium, or low temperature collectors.