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what is mean by solar water hitter
The solar cooker is a device which is used to cook food by utilizing the heat energy radiated by the sun.It consists of an insulated metal box or wooden box which is painted all black from inside.If a coil of copper tube painted black from outside is placed in a box similar to that of solar cooker,it will work as a solar water heater.This is because when water is passed through the copper coil,it will absorb sun's heat rays and become hot.Solar water heaters are used to supply hot water in big buildings like hotels and hospitals.A solar water heater cannot be be used to get hot water during the night or on a cloudy day.


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