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Solar thermal collectors

Solar water heating systems, or 'solar thermal' collectors, use free heat from the sun to warm hot water

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Solar thermal collectors are products that are specifically designed to capture solar energy and convert it, with a broader solar system, to useful heat for water or space heating applications. They are built around a solar absorber that uses radiation to increase the temperature of heating fluid flowing through the collector. This heat is then transferred to a storage vessel by means of a circulating fluid, or in some instances, the solar collector could be directly connected into the heating circuit. 

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