| 摘要 |
<p>PURPOSE:To make it possible to obtain a comfortable hot air flow without adjusting the quantity of heat of a burner and the quantity of blast of a blower by adjusting the opening area of suction port by sensing the indoor temperature. CONSTITUTION:In a state where a blower 4 is rotated at a predetermined speed and a burner 2 generates a predetermined quantity of heat, when the temperature of the hot air flow rises over an appropriate temperature range due to the rise in the indoor temperature, a spiral type bimetal 11 senses the indoor temperature and contracts, and drives a vane part 12b of an adjusting plate 12 in the clockwise direction to increase the opening area of an outside suction port 9 an also to increase the suction quantity, whereby the temperature of hot air is lowered. In a case where the temperature of the hot air flow is decreased to a value which is less than the appropriate temperature range due to the lowering of the room temperature, the bimetal 11 senses the room temperature and extends, drives the vane part 12b in the counterclockwise direction, and the opening area of the suction port 9 is made small and the suction quantity is decreased, whereby the temperature of the hot air flow is elevated and the appropriate temperature range is maintained.</p> |
