| 摘要 |
A hot water supply device of the invention has a host remote controller 27 and a bath remote controller 20 capable of establishing a call with the host remote controller 27 by an interphone function, the bath remote controller 20 being equipped with a voice guidance function. A priority is given to the voice guidance contents outputted by the voice guidance function. When a call by the interphone function and an output command of the voice guidance by the voice guidance function concurrently occur, the voice guidance having higher order is outputted preferentially over the call. The voice guidance of the lower order is outputted after the call.
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