| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a storage water heater easily preventing a malfunction caused by aged deterioration. <P>SOLUTION: In configuring the storage water heater 120A carrying out water from to a hot water storage tank 20 from a water supply passage 30, boiling water taken in from the hot water storage tank 20 into hot water by a heat source machine 10 and storing it in the hot water storage tank, and supplying the hot water stored in the hot water storage tank to a predetermined supply destination by a hot water supply passage 70, hot water supply detection parts 71, 75 are provided for detecting the presence or absence of consumption at the hot water supply destination, a cumulative number of times of the consumption of hot water at the hot water supply destination is determined on the basis of a detection result of the hot water supply detection parts, a notifying signal generating part is provided for generating a notifying signal when the cumulative number of times of consumption exceeds a first condition value, and a display part 105 is provided for displaying information evoking maintenance on reception of the notifying signal. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
