TCWS.38NG03.C 080709-12
The air shutter on the burner tube controls the primary combustion air. It is set to the
closed position at the factory for natural gas fuel. (For lP see Pg.6.) Some adjustment may
be necessary to obtain desired flame and to eliminate carbon deposits. Evaluate flame
appearance after the fireplace has reached operating temperature. See Fig. #27 for proper
flame pattern.
Open primary air if the window glass and firebox have carbon accumulation and/or the
flames are long, dark and stringy. The shutter may also be opened to lessen the flame
height.
NOTE:
Proper air shutter setting is required.
The flame should be just orange and “lazy”. It should NEVER be set to create sooting
on internal parts and window glass. Allow the fireplace to run for 30 minutes before
evaluating flame appearance.
Burner Flame Adjustment
Fig #27
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