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VentInG InStaLLatIon
horizontal sections of this vent system require a minimum of 3" clearances
to combustibles at the top of the flue and 1" clearance at the sides and
bottom until the flue penetrates the outside wall. a minimum 1" clearance
all around the flue is acceptable at this point of penetration.
If the vertical rise is 7
of any horizontal run.
Vertical sections of this vent system require a minimum of 1" clearance to
combustibles on all sides of the pipe.
A minimum of 3" clearance
to the top is required along
horizontal length until flue
pipe penetrates outside
wall.
Figure 13 -
Combustible
Clearances for Vent
Pipe
20301763
1
/
ft. or more, only a 1" clearance is needed on top
2
3"
12"
FP2338
min. vent clear
1"
A minimum 1" clearance
t o
c o m b u s t i b l e s
1"
permitted all around
flue at outside wall
Vertical Rise Required
Before Horizontal Run
FP2338
DVBL7 Series Gas Fireplace
15
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