| 摘要 |
<p>PURPOSE:To control generation of CO, by eliminating a lifting state of a burner by adjusting suction quantity of primary air of a damper. CONSTITUTION:Primary air is sucked into a damper 15, gas and the primary air are mixed at a throat part 7 and a burning part 6 is burnt by a flame of a burner. A temperature in the inside of a shield case 10 is raised, heat is released from a lath wire net and the heat is discharged as hot air through a blow-off opening 3 by a fan 5. As air is apt to enter into the damper 15 irrespective of pressure of the inside of a main body due to a matter that the throat part 7 is enclosed by a shield plate 13 and the open air is taken in from outdoors, a degree of an opening has become narrow. A suction quantity of the primary air is adjusted by a damper 15 part, a burner is prevented from lifting and generation of CO is decreased even if a gas input is reduced.</p> |
