| 摘要 |
PROBLEM TO BE SOLVED: To provide a bath water heater capable of changing its operation from heating operation directly to hot water supply action without spilling hot water into a bathtub. SOLUTION: During the heating operation, to switch from the heating operation to the action of supplying hot water into the bathtub in such a way that the temperature of water in a return path leading from a radiator 51 to a heat exchanger 22 is not higher than a predetermined temperature, a water passage is set so that the hot water from a hot water supply circuit flows out into the bathtub 5 through the return path. |
