| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a hot water storage type hot water supply heat source device, which can reduce formation range of the temperature transition area, and improve the efficiency of the device. SOLUTION: The hot water storage type hot water supply heat source device is constituted with an operation control means U being formed that when hot water storage conditions are satisfied, hot water circulated by a hot water circulating means E is heated to hot water, having a hot water storage set temperature and stored in a hot water storage tank 1, in a state with thermal stratification being formed and stored hot water being supplied in the non-heating operation state of the heating means 4; and when hot water of a hot water storage set temperature is stored in a minimum secured amount or more, and when by supplying hot water in the non- heating operation state of the heating means 4, the temperature of hot water in the to water storage tank 1 is adjusted to a temperature for starting heating or lower, determined based on a hot water supply target temperature, and a minimum insurance amount or less and heating condition is satisfied, the heating means 4 is caused to effect heating operation, so that hot water is stored in the hot water storage tank 1.</p> |
