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Innovative Hearth Products
DRT2000-C Series Direct-Vent Gas Fireplaces
Install the Firebox Liners (Optional Kits)
14.
1. Install the Firebox Liners (see Page 54).
Install the Logs, and Glowing Embers
15.
1. See Pages 56 - 62 for instructions on Installing the logs, and glowing embers.
Install the Glass Door
16.
1. See Pages 57 - 58 for instructions on Installing and removing the glass door.
Adjust the Air Shutter to Ensure Proper Flame Appearance
17.
• Air shutter adjustment should only be performed by a qualified professional service technician.
• Ensure glass door is in place and sealed during adjustment.
• Soot will be produced if the air shutter is closed too much. Any damage due to sooting,
• The air shutter rod and nearby appliance surfaces are hot. Exercise caution to avoid injury
Flame Appearance and Sooting
The flame should be blue at the base, and yellow-orange in the body of the flame.
When the fireplace is first lit, the entire flame may be blue and will gradually turn yellow-orange during the first 15
minutes of operation. If the flame remains blue, or if the flame is orange with evidence of sooting (black tip), the air
shutter opening may need to be adjusted.
If the air shutter opening is closed too far, sooting may develop. Sooting is indicated by black puffs developing at the
tips of very long orange flames. Sooting results in black deposits forming on the logs, fireplace inside surfaces, and
on exterior surfaces adjacent to the vent termination.
Sooting is caused by incomplete combustion in the flames and lack of combustion air entering the air shutter
opening. To achieve a warm yellow-orange flame with an orange body that does not soot, the shutter opening must
be adjusted between these two extremes.
Air Shutter Adjustment Guidelines
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resulting from improperly setting the air shutter, is not covered under the warranty.
while adjusting flame appearance.
If smoke or soot is present, first check the log set positioning to ensure that the flames are not impinging on any
of the logs. If the log set is properly positioned and a sooting condition persists, then the air shutter should be
opened more. Check that embers are properly sizes and placed (see log installation).
The more offsets in the vent system, the wider the air shutter will need to be opened.
An fireplace operated with the air shutter opened too far may have flames that appear blue and transparent.
These weak, blue, and transparent flames are termed anemic.
Propane models may exhibit flames that candle or appear stringy. If this condition is present and persists, adjust
the air shutter to a more closed position, then operate the fireplace for a few more minutes to ensure that the
flame normalizes and the flames do not appear sooty. The following chart is provided to help achieve the correct
air shutter adjustment for your installation.
WARNING
CAUTION
Installation
900948-00C, 06/2019
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