An Electric Water Heater is a water tank that makes use of an electrical heating system unit to heat the hot water instead of gas. It is functioned by using a thermostat and a resistance. This heater also has a built in isolation tank that keeps water temperature steady. The offered heater also used in domestic settings to supply hot water to small residential as well as commercial buildings. A common alternative to an electric water heater is a gas water heater that makes use of gas for generating heat instead of electricity.