| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot water supply system capable of suppressing wasteful heat storage of hot water in a hot water storage tank and reducing energy consumption by considering the amount of hot water usage in addition to hot water temperature used in each time zone.SOLUTION: A hot water supply system comprises: time zone setting means 5 for dividing one day into a plurality of hours according to a life pattern of a user regarding hot water supply and setting a plurality of time zones; boiling temperature setting means 5 for setting boiling temperature for each time zone; and boiling hot water amount setting means 5 for setting the amount of boiling hot water for each time zone. The hot water supply system includes tank boiling control means 21 for executing boiling of hot water in a hot water storage tank 4 by heating means 20 for a tank until the hot water reaches the amount of boiling hot water preset by the boiling hot water amount setting means 5, with the boiling temperature preset by the boiling temperature setting means 5 according to the current time indicated by clock means 5 being target temperature, when the detection amount of hot water by hot water storage amount detection means 6a, 6b and 6c becomes below a predetermined amount. |
