| 摘要 |
<p>PURPOSE:To obtain the hot air heater, which is simple in structure and small in size and blows-off hot air from its lower part, by a structure wherein its flame port lies below a burner head and combustion exhaust gas is discharged from its lower part by means of a fan. CONSTITUTION:A mixing tube 16, which a gas jet nozzle 11 is faced, is bent downward to form a burner head 18 at the tip and the flame hole part is composed of a tubular wire gauze 20 in a metal tube 19 below the burner head 18 so as to mix the combustion exhaust gas with air stream 22 and blowoff from a blowoff port 23 by means of a fan 13.</p> |
