#BIR-20-L R.5 June 2020
Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces
ADJUSTMENT
41
10.2.2 Vent Restriction
WARNING: To avoid property damage or personal injury, allow the
fireplace ample time to cool before making any adjustments.
WARNING: Improper vent installation may cause the burner flames
to lift or “ghost.” Perform a visual check on flame appearance after
restrictor adjustment to ensure proper performance.
Vertical terminations may display an active, compact flame. If this
appearance is not desirable, a restrictor may need to be installed or
modified after vent termination installation. Access to the vent exit
for restriction can be reached through the fireplace baffle. Allow the
fireplace to burn for 15 minutes before making any adjustments.
Table 10.5, Restrictor Adjustment Guidelines
Flame Appearance
Draft Problem
Solution
Short, flickering
Excessive draft
Not enough restriction
Close baffle restrictor
Install restrictor plate
Lifting or ghosting*
Insufficient draft
Open baffle restrictor
Remove inner ring(s)
on restrictor plate, or
remove restrictor plate
*If flames continue to lift or ghost after opening the restrictor and
verifying correct vent installation, shut off the gas supply and call a
qualified service technician.
10.2.2.1 Baffle Restrictor Adjustment
1. Remove the safety barrier and glass frame assembly to access
the baffle restrictor.
2. Remove and save (1) screw to adjust the baffle restrictor to
achieve desired flame appearance.
3. Secure baffle restrictor with (1) screw previously removed.
4. Reinstall the glass frame assembly and safety barrier.
Figure 10.4, Baffle Restrictor Adjustments