| 摘要 |
PURPOSE: Complete mix of fuel gas and air is carried out to prevent incomplete burning, thereby preventing discharge of harmful gas. CONSTITUTION: A main burner(20) and a pilot burner(30) are installed in one end of a radiant tube. An air distributing plate(60) is provided in front of an air supplying portion(12) by forming a first, second, third air distributing portion(61,62,63). A rear air passing box(70) is fixed to the radiant tube and the air distributing plate. A front air passing box(80) is fixed to the air distributing plate, and is formed with a plurality of holes.
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