| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hot water supply apparatus capable of suppressing reduction of hot water supply and less in hot water stoppage. <P>SOLUTION: The hot water supply system comprises a hot water storage tank 11, a service side cycle to circulate water in the hot water storage tank, raising the temperature of the water, and circulate hot water in the hot water storage tank 11, a hot water feed means 27 to feed stored hot water to an upper portion of the hot water storage tank 11, and an instantaneous hot water supply cycle to circulate the water in the upper portion in the hot water storage tank 11, raise the temperature of the water and circulate it in the hot water storage tank 11. When the hot water temperature T1 detected when feeding hot water is below a predetermined value, the system is switched to the instantaneous hot water supply cycle. Therefore, the hot water supply temperature can be raised in a short time compared with the hot water supply using the service side cycle. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
