Solar water heaters in India cater to all the hot water requirements throughout the household in extremely environment friendly way as well as cuts down on 40% of the electricity bills. A solar water heating system is nothing but a heat exchanger. It captures the heat from the sun and transfers it to the water.
Flat plate collector system uses copper / Aluminum 2fins to trap the heat from the sun and transfer it to the water (~60 to 850C ), it is then distributed to utility points via insulated pipelines.