VENTING
Only For Qualified Installers
28
Natural Gas
Propane
6 feet
2 1/2
1 to 4
12 feet
2 1/2 to 4
1 to 4
24 feet
1 to 2
1 to 4
36 feet
1
2 to 4
Natural Gas Propane
12 feet
1 to 4
1 to 4
24 feet
1 to 4
1 to 4
36 feet
1 to 4
1 to 4
Range Of Approved Damper Settings
For 8” X 5” Vent
Range Of Approved Damper Settings
For 6
5
/
8
” X 4” Vent
A vent damper is provided to allow fine tuning of
the draft. Too little draft will cause flames to be too
long with black tips and too much draft will cause
flames to be short and blue.
To adjust the damper, burn the unit on high with
both burners for 10 minutes or more. Adjust the vent
damper to a position in the ranges listed below that
produces the most desirable flame pattern. Note: 1
is less draft and 4 is maximum draft.
Damper Settings
Maximum Draft
Minimum Draft
Vent damper in the number
“4” position
Summary of Contents for The Serenity III HB 38 DV
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