| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a storage type water heating apparatus that can heat bath water in a short time even when performing a bath water heating in which a temperature raising range is relatively large, while suppressing a heat dissipation loss when performing a bath water heating in which the temperature raising range is relatively small. <P>SOLUTION: The storage type water heating apparatus raises, in a step 424, a lower limit value of a target heating temperature TO to a lower limit value THL that is higher than a lower limit value TL by predetermined degrees of temperature when determining, in a step 422, that a bath water heating record exists in a predetermined past period, and also, in steps of 425, 426a, 426b, 426c, the storage type water heating apparatus alters the lower limit value THL so that the lower limit value THL is raised when a bath water heating time is longer than a target time, and is lowered when the bath water heating time is shorter than the target time. <P>COPYRIGHT: (C)2013,JPO&INPIT |
