CFDV Series Gas Fireplace
20306739
31
VENTING INSTALLATION
1” Min.
Clearance
1” Min.
Clearance
KT1080
roof support top view
2 x 4 Framing
Leveling
Bolts
Clamping Bolts
Outline for Hole Cut in Roof
(Roof Sheeting Not Shown)
Screw
Screws
Figure 59 –
Typical Roof Support (top view)
Figure 60 –
Minimum Height from Roof to Lowest Discharge Opening
Horizontal
overhang
12
X
20 in.
(508 mm)
Lowest
Discharge
Opening
Termination
Cap
Roof Pitch
is X / 12
Vertical
wall
H (min.) - Minimum height
from roof to lowest
discharge opening.
24 in. min.
(610 mm)
Roof Pitch
H (Min.) Ft.
Roof Pitch
H (Min.) Ft.
Flat to 6/12
1.0*
Over 11/12 to 12/12
4.0
Over 6/12 to 7/12
1.25*
Over 12/12 to 14/12
5.0
Over 7/12 to 8/12
1.5*
Over 14/12 to 16/12
6.0
Over 8/12 to 9/12
2.0*
Over 16/12 to 18/12
7.0
Over 9/12 to 10/12
2.5
Over 18/12 to 20/12
7.5
Over 10/12 to 11/12 3.25
Over 20/12 to 21/12
8.0
* 3 ft. minimum in snow regions
Storm Collar
Roof
Flashing
Horizontal
overhang
12
X
20 in.
(508 mm)
Lowest
Discharge
Opening
Termination
Cap
Roof Pitch
is X / 12
Vertical
wall
H (min.) - Minimum height
from roof to lowest
discharge opening.
24 in. min.
(610 mm)
Roof Pitch
H (Min.) Ft.
Roof Pitch
H (Min.) Ft.
Flat to 6/12
1.0*
Over 11/12 to 12/12
4.0
Over 6/12 to 7/12
1.25*
Over 12/12 to 14/12
5.0
Over 7/12 to 8/12
1.5*
Over 14/12 to 16/12
6.0
Over 8/12 to 9/12
2.0*
Over 16/12 to 18/12
7.0
Over 9/12 to 10/12
2.5
Over 18/12 to 20/12
7.5
Over 10/12 to 11/12 3.25
Over 20/12 to 21/12
8.0
* 3 ft. minimum in snow regions
Storm Collar
Roof
Flashing
Install Roof Flashing
To install roof flashing see Figures 61 and 62.
For installation of vertical termination cap see minimum
vent heights for various pitched roofs (see Figure 60) .
Caulk the gap between the roof flashing and the outside
diameter of the pipe. Caulk the perimeter of the flashing
where it contacts the roof surface.
Caulk
Pipe
Flashing
Figure 61 –
Caulk the Gap
Assemble and Install Storm Collar
• Slide the storm collar onto the exposed pipe section
and align brackets.
• Insert a bolt (provided) through the brackets and install
nut (do not completely tighten).
• Slide the assembled storm collar down the pipe section
until it rests on the roof flashing.
• Tighten nut and make sure the collar is tight against the
pipe section.
• Caulk around the top of the storm collar.
Figure 62 –
Insert Bolt into Brackets
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