CFDV Series Gas Fireplace
20306739
17
3"
1"
1"
1"
VENTING INSTALLATION
Figure 22 –
Combustible Clearances for Vent Pipe
A Minimum of 3" (76
mm) Clearance to the
Top Is Required Along
Horizontal Length until
Flue Pipe Penetrates
Outside Wall.
A Minimum 1" (25
mm) Clearance
to Combustibles
Permitted All Around
Flue at Outside Wall
VENT PIPE CLEARANCES
Rear Wall Vent: Horizontal sections of this
vent system require a minimum of 3" (76
mm) clearances to combustibles at the top
of the fl ue and 1" (25 mm) clearance at the
sides and bottom until the fl ue penetrates
the outside wall. A minimum 1" clearance
all around the fl ue is acceptable at this point
of penetration.
W
ARNING
Rear/Top Vent Vertical Side wall: Horizontal
sections of this vent system require a
minimum of 3" (76 mm) clearances to
combustibles at the top of the fl ue and 1"
(25 mm) clearance at the sides and bottom
until the fl ue penetrates the outside wall. A
minimum 1" clearance all around the fl ue
is acceptable at this point of penetration. If
vertical rise is 7
1
/
2
feet (2.3 m) or higher when
top venting, the clearance to combustibles
is 1" on all sides of the horizontal run.
W
ARNING
1"
3"
1"
1"
A Minimum of 3" (76 mm)
Clearance to the Top Is
Required Along Horizontal
Length until Flue Pipe
Penetrates Outside Wall.
A Minimum 1" (25
mm) Clearance
to Combustibles
Permitted All Around
Flue at Outside Wall
FP3018
FP3017
Rear Vent
Top Vent
All vertical sections of this vent system
require a minimum of 1" (25 mm) clearance
to combustibles on all sides of the pipe.
W
ARNING
