MULTI-FUNCTIONAL HEAT PUMP TYPE WATER HEATER SYSTEM

PROBLEM TO BE SOLVED: To provide a multi-functional heat pump type water heater system capable of quickly re-heating and saving energy by using a heat pump type water heater. SOLUTION: In this multi-functional heat pump type water heater system, hot water heated by a gas cooler 21 of a heat pump unit 2 is stored inside a hot water storage tank 1, and the stored hot water is utilized by each of water heater. The heat pump unit 2 is controlled for boiling so that high-temperature hot water at 85°C or more is boiled in a volume at 1/5 to 1/4 of the volume of the hot water storage vessel 1 in an upper part thereof and so that middle-temperature hot water at 65-85°C is boiled in a lower part thereof. A heat exchanger 93 for re-heating a bathtub 9 is provided in a high-temperature range H wherein high-temperature hot water at 85°C or more is boiled, and a hot water take-out opening 45 is provided in a middle-temperature range M wherein middle-temperature hot water at 65-85°C is boiled. COPYRIGHT: (C)2005,JPO&NCIPI