| 摘要 |
PURPOSE:To make it possible to obtain a large amount of high temperature water and to drop the same into bathtub in a short period of time by enabling the dropping of hot water into the bathtub with a large capacity indicative of the input of the instantaneous water heater plus the input of the input of a bath heater. CONSTITUTION:Between an outgoing pipe 15 and a return pipe 11 connecting a circulating pump 14 to a bathtub 12, is provided a bypass pipe 22 having an electromagnetic valve 21. The tip end of a hot water outlet pipe 19 is connected to an inlet side 13 between a check valve 20 and a heat exchanger 9 for bath. Further, a water quantity sensor 23 is provided between an electromagnetic valve 16 and a vacuum break valve 17. A return pipe 20 and an outgoing pipe 24 is a circuit for circulation, and has a diameter which is smaller than that of a hot water feed pipe 6. Further, the composite type hot water feeder is installed at a position higher than that of the bathtub 12. As a result, the dropping of hot water into the bathtub can be performed with a large capacity indicative of the input of the instantaneous water heater 1 plus the input of a bath heater 7, and hence hot water can be supplied with a large capacity. |
