| 摘要 |
PURPOSE:To prevent the occurrence of incomplete combustion due to a decrease in oxygen concentration in a room through prevention of the continuous use of a device for a unreasonably ling time irrespective of a disturbance factor such as the temperature of the open air, by a method wherein the device is constituted such that the combustion heat of a burner is transferred to a heat accumulating member. CONSTITUTION:A heat accumulating member 7 is connected to the one end of a thermal conduction member 11 having the other end interposed into a combustion cylinder (b) of a main burner 3, and the heat accumulating member 7 is heated by means of a main combustion flame. Since the heat accumulating member 7 is heated by a high temperature main combustion flame through the thermal conduction member 11, a fluctuation in the temperature of the heat accumulating member 7 due to the tmeperature of the open air can be substantially reduced, and this enables reliable counting of a working time by means of heat accumulation. |
