| 摘要 |
PURPOSE:To prevent dew from condensing in a heat exchanger or the like at the weak burning time in a burning device having a burner for burning a mixture of vaporized fuel and air by enabling to supply part of combustion air via the burner to the heat exchanger. CONSTITUTION:A fan 1 and a fuel atomizer 8 are rotated by a burner motor 2, the fuel supplied via a fuel supplying unit 7 is scattered to the atomizer 8, is vaporized via a heater 9, the vaporized fuel is mixed with combustion air by a fan 1, and is then burnt in a burner head 11. In this burning device, bypass port 17, 18 are provided at a burner case 16. The ports 17, 18 communicate with each other in bypass case 19, and the port 17 is opened or closed by a valve body 22 driven by a solenoid 21. Further, combustion air is bypassed and supplied to a heat exchanger 12 via a bypass port 10 formed at a partition wall 15. |
