10
TC42.NG05.C 160508-12
Fig. # 29
The air shutter on the burner tube controls the primary combustion air to the gas burner
and is preset at the factory for natural gas fuel. Some adjustment may be necessary to
obtain desired fl ame and to eliminate carbon deposits. Evaluate fl ame appearance after
the fi replace has reached operating temperature. See Fig. #29 for proper fl ame pattern.
Open primary air shutter if the logs, glass, and fi rebox have carbon accumulation and /
or the fl ames are long, dark and stringy. The shutter may also be opened to enhance the
Ember Material glow and lessen the fl ame height.
Caution: Burner area may be hot!
Turn off the fi replace and allow the unit to cool before proceeding.
Caution: Proper air shutter setting is a
must.
The fl ame should be just orange and “lazy”.
It should NEVER be set to create sooting on
internal parts and glass.
Burner Flame Adjustment
To Adjust:
1. Open and remove window frame and set
aside. See "Window Frame Removal"
section found in the Installation and
Operating Instructions manual.
2. Remove the log set and set aside.
3. Loosen the screw in the Primary Air
Shutter.
4. Rotate the shutter to increase or decrease
the amount of primary air.
5. Reassemble in reverse order.
