30
Orifice Chart for Surface Burners:
COS-GRT366
Burner
Placement
LP Orifice
Size (mm)
NG Orifice
Size (mm)
Burner
Rating
Super Rapid
Front Left
1.24
1.88
18,000 BTU
Rapid
Front Center
1.00
1.50
12,000 BTU
Super Rapid
Front Right
1.24
1.88
18,000 BTU
Semi Rapid
Rear Left
0.88
1.35
9,000 BTU
Rapid
Rear Center
1.00
1.50
12,000 BTU
Semi Rapid
Rear Right
0.88
1.35
9,000 BTU
COS-GRT366
A. Super Rapid (Large)
B. Rapid (Medium)
C. Semi Rapid (Small)
C
B
C
A
B
A