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Burner Placement
NG Orifice
Size (mm)
LP Orifice
Size (mm)
Rating
(BTU)
Rapid Front Left 1.79 1.16 15,000
Rapid Front Right 1.79 1.16 15,000
Semi Rapid Rear Left 1.36 0.90 9,000
Semi Rapid Rear Right 1.36 0.90 9,000
Broil Oven Top 1.42 0.94 10,000
Bake Oven Bottom 2.13 1.40 22,000
CONVERT SURFACE BURNERS
Tool Needed
• 9/32" (7 mm) nut driver
IMPORTANT: Make sure to save the orifices that have just been replaced in
the conversion.
NG/LP Orifice Chart for Surface and Oven Burners
COS-GRP304 (30")
15,000 BTU
NG: 1.79
LP: 1.16
9,000 BTU
NG: 1.36
LP: 0.90
15,000 BTU
NG: 1.79
LP: 1.16
9,000 BTU
NG: 1.36
LP: 0.90