1.

_______ HAS REQUIRED THE USE OF SOLAR HEATERS SINCE 1957

Answer»

Solar WATER HEATING system is a device that uses solar ENERGY to HEAT water for DOMESTIC, commercial, .... When more water is required, other sources of water heating could be used.Explanation:Solar water heating system is a device that uses solar energy to heat water for domestic, commercial, .... When more water is required, other sources of water heating could be used.



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