Solar Water Heating System may supply hot water for a variety of uses in the industrial, commercial, and residential sectors by utilizing solar thermal energy. Normally, the collector is maintained on the roof, preferably towards the south. Pumps transport domestic water via collectors and into the residence indirect circulation systems. They are effective in places where the ground seldom freezes.
Pumps circulate a non-freezing heat-transfer fluid through collectors and a heat exchanger in indirect circulation systems. This warms the water, which then enters the house. They are popular in areas where temperatures can drop below freezing.

