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FLAME APPEARANCE ADJUSTMENT
Air Shutter Adjustments
Be sure burner and burner media are positioned properly. For Natural Gas applications, air shutter shall be 1/8” open. For
LPG applications, start with air shutter open to 3/8”. After burner has been properly installed and operated for 20 minutes,
small additional adjustments to the air shutter may be necessary for final flame appearance. These small shutter adjust-
ments can be made by following these procedures:
NOTE: Start with the burner air shutter set at 1/8” open for NG and 3/8” to 1/2” open for LPG.
Opening the shutter
will yield shorter and blue(er) flames and closing the shutter will yield taller and yellow(er) flames.
The burner air shutter adjustment lever is located inside the firebox on the right side of center.
Install burner media and glass frame, and burn unit for 20 minutes minimum.
If flame is too "blue" open Air Shutters until flames turn yellow.
If flames are too "orange" or are causing sooting, open Air Shutters until flames begin to turn blue.
NOTE:
If sooting does not stop, turn off fireplace & call a Mendota Service Person.
IMPORTANT
: Try each new shutter setting for approx. 20 minutes before making additional changes.
NOTE:
Changes in burner flame can be made by re-arranging the burner media as well. Make certain burner media is
loosely spread over burner. DO NOT pack media tightly.
For NG applications, start with the burner air shutter closed to 1/8” open. For high altitude applications, air shutter may
need to be open further.
For LPG applications, start with the burner air shutter open to 3/8”. For high altitude applications, air shutter may need to
be opened further.
