HOT WATER SUPPLY SYSTEM

PROBLEM TO BE SOLVED: To enhance temperature conditioning accuracy while increasing rising speed of hot-water supply temperature at the time of starting hot water supply, when the hot-water supply temperature is controlled by performing mixing temperature conditioning control, in a hot water supply system comprising a hot-water storage tank unit and a water heater connected in series. SOLUTION: The hot water supply system comprises a hot-water supply outlet thermistor 39 provided near an outlet 6 of a hot-water supply pipe 2 for detecting temperature of hot water supplied from the hot-water supply pipe 2. In a general hot water supply mode, a tank controller 50 prohibits heating by the water heater 10 when hot water in a hot-water storage tank 31 is not run out, and feedback controls a mixing ratio of hot water supplied from the hot-water storage tank 31 to the hot-water supply pipe 2 by a hot-water amount variable valve 34 and a water amount variable valve 35 and water supplied from a water supply pipe 1 to the hot-water supply pipe 2 so that the detected temperature of the hot-water supply outlet thermistor 39 becomes hot-water supply set temperature. COPYRIGHT: (C)2010,JPO&INPIT