Homes using conventional electrical geysers can also gain a lot through Solar Water Heaters. Solar Water Heaters for Homes and Solar Geysers saves the costs in 2 ways. First, the electricity expenditure is zero comparative to the electrical geysers. Second, the life of a Solar Water Heater is 15-20 years almost 3 -4 times the life of an electrical geyser. There is practically no maintenance required in Solar Water Heaters where as in electrical geysers repairs /replacements are required every 5-6 years. The per unit charge of electricity also keeps increasing every year and god knows where it would be in 10 year time but fortunately sun doesn’t charge us anything for its light and would never do so ever.