HOT WATER SUPPLYING APPARATUS

PURPOSE:To enable to supply hot water by utilizing the maximum capacities of two heat exchangers either to a hot water tap or to the hot water pouring port of a bathtub by a method wherein the two heat exchangers are connected by a change-over valve. CONSTITUTION:A heat exchanger 12 for hot water supply and a heat exchanger 13 for bath can be simultaneously put to use, when the hot water supply through a hot water tap 25 or through a hot water pouring port 43 to a bathtub 11 is intended, by connecting both the heat exchangers 12 and 13 through a change-over valve A. Further, both the heat exchangers 12 and 13 can be employed for directly supplying hot water through the hot water pouring port 43 to the bathtub 11 without uncovering the lid of the bathtub 11. Furthermore, hot water can be drawn off from the hot water tap 25 while hot water being supplied to the bathtub 11. In addition, because a waiting state is produced by closing the hot water tap 25 under the condition that the change-over valve A is placed at the position enable to put both the heat exchangers 12 and 13 to use simultaneously, the bathtub 11 can be supplied through the hot water pouring port 43 with the hot water, which is produced at both the heat exchangers 12 and 13 or with the high temperature hot water (additional heating function), whcih is produced at the heat exchanger 13 for bath and the supply timing of which is set by a timer.