The use of hot water for bathing and other purposes has become an integral part of modern lifestyles. With the abundant availability of sunlight in our country, even in colder regions, solar water heating is a natural solution. It has been established that the investment in solar water heaters pays itself back through saved electricity costs in 4 to 5 years and thereafter the hot water becomes available for free over the lifetime of the equipment of more than 15 years. Government subsidized loans are available to finance the equipment costs.

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Use of hot water is common for residential applications in our country. In urban and semi urban areas also, the hot water use is becoming a part of the life style. In most cases water is normally heated up with electricity which is expensive and is not available for 24 X 7. Therefore, solar water heating system can be a suitable alternative to meet the growing hot water demand requirement in the country without exerting further demand pressure on electricity generation capacity in the country.