E. Air Shutter Setting
Air shutter settings should be adjusted by a qualified ser-
vice technician at the time of installation. The air shutter
is set at the factory.
NOTICE: If sooting occurs, provide more air by opening
the air shutter.
Air Shutter Settings
TWILIGHT-IFT (NG)
3/8 in.
TWILIGHT-IFT (Propane)
Full Open
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Outdoor Lifestyles by Hearth & Home Technologies • TWILIGHT-IFT Installation Manual • 2668-970 Rev. C • 3/21