44
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
BURNER ADJUSTMENTS
(QUALIFIED TECHNICIANS ONLY)
Flame Appearance and Sooting
Proper flame appearance is a flame which is
blue at the base and becomes yellowish-orange
in the body of the flame.
When the appliance is first lit, the entire flame
may be blue and will gradually turn yellowish-
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, appliance 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 enter-
ing the air shutter opening. To achieve a warm
yellowish-orange flame with an orange body
that does not soot, the shutter opening must be
adjusted between these two extremes.
Rustic Oak Logs Shown
Contemporary Media Shown
Figure 71—Burner Flame Appearance
Figure 72—Burner Flame Appearance
INNOVATIVE HEARTH PRODUCTS • DIRECT-VENT GAS FIREPLACES (DRT6300/DRC6300) • CARE AND OPERATION INSTRUCTIONS
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