| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a storage type water heater system for suppressing increase of energy consumption without running out of hot water when the heat insulation performance is deteriorated. <P>SOLUTION: The system includes a hot water storage tank 1, heat insulating material 5 covering the hot water storage tank 1, a heating means 2 for adding a heat to hot water in the hot water storage tank 1, a heat storage quantity calculation means 101 for calculating a heat storage quantity in the hot water in the hot water storage tank 1, a heat insulation performance detection means 102 for detecting the heat insulation performance of the heat insulating material 5 based on the heat storage quantity, and a control means 103 which determines whether the heat insulation performance is deteriorated or not based on the heat insulation performance detected by the heat insulation performance detection means 102, determines the heat to be added to the hot water during a specific time zone according to the determined deterioration of the heat insulation performance, and carries out heating control of the heating means 2. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
