Hot water on tap helps in the order of the house in many ways. The dishwasher will not need to heat the water. You can fill the jug with hot water and get a cup of coffee quicker and cheaper. This all saves you on your energy bill by using your domestic water heater to heat water rather than the electric elements in the appliances.
Whenever you are working on a hot water system—whatever it uses—there are always safety issues to consider. Make sure that in an electric water heater system that you not only shut off the hot water heater itself, but also shut off the breaker. In a water heater unit, the valve should be shut off both at the water heater and at the supply line. There should be no sparks or open flames around the hot water heater even if it is turned off.
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