ELECTRONIC FAUCET EQUIPPED WITH TAP-CONTROLLED HOT-WATER TANK

PROBLEM TO BE SOLVED: To simplify a circuit as well as a heat insulation mechanism and eliminate a time for waiting the supply of hot-water substantially by a method wherein a tap-controlled hot-water tank is incorporated into an electronic faucet to supply hot-water in the initial period of starting of hot-water supply while mixing the reserved hot-water in the tap-controlled hot-water tank into hot-water of hot-water heating device and regulating the temperature of the supplying hot-water. SOLUTION: When a switch of a supplying hot-water heating device 1 is put ON, a boiling temperature T, storing the necessary minimum amount of heat in a tap-controlled hot-water tank 6, is operated and water is heated to the boiling temperature T. Upon supplying hot-water, hot-water is not discharged out of the supplying hot-water heating device 1 at the initial period of starting whereby a bypass amount regulating valve 10 is closed and hot-water, stored in the tap-controlled hot-water tank 6, is mixed with cold water from a second water inlet pipe 19 to supply hot-water. At the initial period of starting the supply of hot-water, the hot-water in the tap-controlled hot-water tank 8 is mixed into hot-water from the supplying hot-water heating device 1 to supply hot-water after regulating the temperature of the same. According to this method, a circuit and a heat insulating mechanism can be simplified while a time for waiting the supply of hot-water becomes unnecessary and hot-water can be supplied from the initial period of time of supplying hot-water.