| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot water supply apparatus combined with other combustor in which both apparatus can be subjected to proportional control and which can be delivered easily from a factory at a low cost. SOLUTION: The combination hot water supply apparatus 1 comprises a unit 2 for supplying hot water to kitchen, bath room, and the like, and an additional heater 3 for boiling hot water in a bathtub A. The hot water supply unit 2 comprises a hot water supply heat exchanger 4, a hot water (first) gas burner 5 therefor, and a hot water (first) fan 6. The additional bath heater 3 comprises a bath heat exchanger 14, a bath (second) gas burner 15 therefor, and a bath (second) fan 16. A main gas supply pipe 23 is coupled, sequentially from the upstream side, with a main gas on/off solenoid valve 24, and a governor proportional solenoid valve 25 and hot water gas supply pipes 26, 27 and 28 for supplying fuel gas to respective burners are branched from the downstream side. The hot water gas supply pipes 26, 27 and 28 are coupled, respectively, with on/off solenoid valves 29, 30 and 31. |
