Instant water heaters are among the most used appliances in typical households. They are needed to provide the hot water many people use for showering, dish washing, and washing clothes. An instant water heater is basically a small electric hot water tank or storage unit but is not gas fired. This small tank holds the hot water ready for use until you turn on the instant hot water tap in the sink.
The water is supplied to the tank through a small water line that runs off the sink’s main cold water feed line. It goes directly into the base of the tank where it is heated by some electric elements. This heating process causes the water to expand, so the water moves up into a holding tank on the top of the tank where it is kept hot. And once you turn on the tap, the hot water flows out, and fresh cold water flows into the bottom of the tank.
The capacity of an instant water dispenser varies, but usually ranges from 1/3 to 1/2 gallon; while the wattage of the heating elements usually range from 500 to 1500 Watts. And since the instant water heater tank produces water that is substantially hotter compared to the regular water heater tank, the water it delivers is delivered at a much slower rate compared to the water delivery speed of the regular tank.



