| 摘要 |
PROBLEM TO BE SOLVED: To provide a joint member for a hot water supply device which is inexpensive and allows fast drainage.SOLUTION: A hot water supply device includes a member for controlling hot water supply, such as a heat exchanger and a valve inside the device, and a joint member for connection with a pipe outside the device. The joint member integrally includes a joint and an overpressure relief valve, and separately includes a valve for drainage. |
