| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a hot water supply device capable of performing a boil-up operation while preventing loss accompanied by a bath heat recovering operation. <P>SOLUTION: Control means 50, 51 determine changed boil-up conditions for boiling up for a changed heat quantity obtained by subtracting a bath heat recovery heat quantity by the bath heat recovering operation from the boil-up heat quantity in the boil-up condition determined in advance, when a termination time of the bath heat recovering operation exceeds a time for calculating the boil-up conditions of hot water, and execute a boil-up operation on the basis of the changed boil-up condition. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
