| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve the efficiency of an apparatus by supplying much hot water stored in a regenerative hot water tank to the utmost while preventing hot water from being exhausted. SOLUTION: Operation control means G, when supplying hot water in a regenerative hot water tank 1 controls the present amount of hot water stored in the regenerative hot water tank 1 less than the minimum amount of detected stored hot water based upon the amount of hot water stored in the regenerative hot water tank to which a large amount of the minimum detected stored hot water to which the hot water stored in the hot water tank 1 is supplied from a timing of the minimum detection where the amount of stored in the regenerative hot water tank 1 is the minimum amount of the detected hot water larger than the minimum secured amount. The operation control means G, when the present amount of stored hot water reaches less than the minimum secured amount, executes a judgement processing which judges heating conditions being satisfied, and once the heating conditions are satisfied, heats hot water circulated with hot water circulation means E to hot water at hot water storage set temperature in heating means 4, and stores the hot water in the hot water regenerative hot water tank 1 in the state where a temperature forming layer is formed, and further supplies the hot water stored in the regenerative hot water tank 1 through the hot water supply passage.</p> |
