| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hot water supply system that prevents wasteful energy consumption by preventing heat dissipation from a hot water tank and reducing operation chances of a combustion hot water supply device. <P>SOLUTION: The hot water supply system includes a hot water tank 15 for storing water boiled by a heat pump 4, a combustion hot water supply device 3 for heating hot water from the hot water tank 15 using a burner 35, and a boiling temperature setting means 16 for setting a boiling temperature of the heat pump 4. The boiling temperature setting means 16 sets a first boiling temperature when a hot water supply temperature set in a remote controller 32 is equal to or more than a predetermined temperature or the current time is a preset first time zone, and sets a second boiling temperature lower than the first boiling temperature when the current time is a second time zone other than the first time zone and when the hot water temperature set in the remote controller 32 is less than the predetermined temperature. <P>COPYRIGHT: (C)2012,JPO&INPIT |
