15
BURNER TUBE VENTURI ADJUSTMENT GUIDELINES
VENTURI POSITION
FLAME COLOR
VENTURI ADJUSTMENT
Closed too far
Dark orange flame with black tips
Open venturi setting slightly
Open too far
Blue flames
Close venturi setting slightly
1. Remove glass frame assembly. Page 7.
2. Remove log set.
3. Remove burner assembly. Refer to page 14.
4. Loosen screw on burner venturi and adjust as necessary. Tighten screw.
5. Reinstall all components previously removed.
6. Light fireplace and wait 15 minutes before determining if any further adjustments are
needed.
FLAME APPEARANCE:
Flame appearance is affected by several factors including altitude, venting configuration and fuel quality. Although the venturi setting has
been factory set, adjustments may be necessary for optimal performance and visual aesthetics.
When fireplace is first lit, the flames will be blue, gradually turning yellowish-orange during first 15 minutes of operation. If flames remain
blue or become dark orange with evidence of sooting (black tips), the burner tube venturi may need adjustment.
FACTORY SET BURNER TUBE VENTURI SETTINGS
(ADJUST AS NECESSARY FOR YOUR INSTALLATION)
NATURAL GAS
LP (PROPANE) GAS
3/16” (5mm) OPEN
5/8” (16mm) OPEN
TO ADJUST VENTURI:
BURNER VENTURI
IMPORTANT
SLIGHT ADJUSTMENTS TO THE BURNER VENTURI OPENING CREATE DRAMATIC RESULTS. ADJUST AT SLIGHT INCREMENTS
UNTIL DESIRED LOOK IS ACHIEVED. ALWAYS BURN FIREPLACE FOR AT LEAST 15 MINUTES AND ALLOW TIME TO COOL
BEFORE MAKING ANY FURTHER ADJUSTMENTS.
FINALIZING THE INSTALLATION
Figure 15c
Figure 15a
Lazy yellow flames
- ideal
Short blue flames
venturi open too far
Dark orange flames / black tips
Venturi closed too far
Excessive burner media
Lifting (ghosting) flames
Improper Venting
Gas pressure too high
Correct pilot flame
Figure 15b
WARNING
Burner tube adjustable venturi positioning should only be performed by a qualified professional service technician.
NOTE
If soot is present, check log positioning before adjusting burner venturi. Logs must not block burner ports.
