A solar water heater is a device that helps in heating water by using the energy from the SUN. This energy is totally free. Solar energy (sun rays) is used for heating water. Water is easily heated to a temperature of 55 – 80oC.
Solar water heaters use solar energy to heat water in your homes. These results save on a great many things. Solar water heater of 100-300 liters capacity is suited for domestic use. Larger systems can be used in restaurants, canteens, guest houses, hotels, hospitals, industrial needs etc. They have no dependency on fuels, are zero-emission, and have lower carbon footprints.
The heating of water is the most common application of solar energy in the world. A typical solar water heating system can save up to 1200 units of electricity every year, for every 100 liters per day of solar water heating capacity.