| 摘要 |
PURPOSE:To provide a hot water supply mechanism capable of saving electric charges, and supplying hot water at uniform temperature. CONSTITUTION:When water in a boiler 7 is preheated and a timer for adjusting a hot water delivery amount is set, preheated hot water 10 is further heated and an air inlet valve 15 is kept closed. The internal pressure of the boiler 7 is thereby raised and hot water of optimum temperature is obtained in a short heating time, while delivering the hot water. |
