13
INSTALLATION
Only For Qualified Installers
Natural Gas or Propane
0 Feet (rear Vent)
Open
6 feet
1/4 to Open
12 feet
1/4 to Open
24 feet
Closed to 1/2
36 feet
Closed to 1/2
Range Of Approved Damper Settings
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 10
minutes or more. Adjust the vent damper to a posi-
tion in the ranges listed below that produces the most
desirable flame pattern. Note: 1 is less draft and 4 is
maximum draft.
Damper Settings
Top Vent Only
Vent damper shown in the
Maximum Draft”OPEN” position
for top vent. Note: This would be
the Minimum Draft”CLOSED”
position if a rear vent was
installed.
O
P
E
N
CLOSED
O
N
E
H
A
LF
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