| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot-water heating system capable of easily operating a plurality of hot-water heaters in conjugation with each other at a suppressed cost. SOLUTION: A bathroom heater 3 and a dressing room heater 4 are connected so as to be directly communicable through communication units 15 and 16. The bathroom heater 3 transmits a heating start signal through the communication unit 15 when bathroom heating operation is started. The dressing room heater 4 starts dressing room heating operation in conjugation with the receipt of the heating start signal in a state set to "conjugation mode" by an operation mode change-over switch 51. The bathroom heater 3 continuously transmits a heating operation signal through the communication unit 15 during the execution of bathroom heating operation, and the dressing room heater 4 stops the dressing room heating operation after the lapse of a prescribed time when the heating operation signal is not received through the communication unit 16. COPYRIGHT: (C)2004,JPO
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