Solar Water Heating Systems consists of an absorber made of copper, a storage tank with PUF / Rockwool insulation, piping and a transparent cover. Solar energy heats the absorber surface, warming the water flowing through the tubes attached to it. The heated water is transferred to the insulated storage tank through thermosyphon effect. A transparent glass cover is placed above the absorber to reduce heat loss through radiation and through wind. The absorber, cover and insulator are placed within a metal container. Cold water flows from the bottom of the storage tank to the collector. From here, the heated water rises to the top of the storage tank. To maintain the functioning of the system, a constant supply of cold water must be made available. For this purpose, a separate overhead cold water storage tank on the roof above the height of Solar Water heater is required where water flows with the virtue of gravity or in cases hydraneumatic pump is attached on the cold water supply, the same is not mandatory, but still recommended for the purpose of electrical failures or 100% power back up is required.