| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve such a problem that a large amount of hot water remains unused when the amount of hot water changes greatly. <P>SOLUTION: The storage type hot water supply device includes a control means 40 for controlling a heating means 29 to boil up hot water in a hot-water storage tank 1 in a specific period of time. The control means 40 calculates an average amount of supplied hot water and a degree of change in a supplied hot water amount in the past specified period of time on the basis of the stored contents of a supplied hot water storage means 41, and controls the heating means 29 to additionally boil the hot water when a hot water storage amount detection means 22 detects that the level is less than a predetermined first hot water storage amount for start of additional boiling in other than a specific period of time so long as the average amount of supplied hot water is larger than a predetermined amount with a larger volume than the full tank capacity of the hot-water storage tank 1 or the average amount of supplied hot water is less than the predetermined amount and the degree of change is less than a predetermined value. Furthermore, it controls the heating means 29 to additionally boil the hot water when the hot water storage amount detection means 22 detects that the level is less than a predetermined second hot water storage amount for start of additional boiling is smaller than the first hot water storage amount for start of additional boiling in other than the specific period of time while the average amount of supplied hot water is less than the predetermined amount and the degree of change is larger than the predetermined value. <P>COPYRIGHT: (C)2013,JPO&INPIT |
