CFDV Series Gas Fireplace
20306739
23
VENTING INSTALLATION
VERTICAL SIDE WALL APPLICATIONS
For all vertical Side wall installations, the supplied flue
restrictors must be installed. Install the flue restrictor
according to the settings shown in the Vertical Side wall
Installation Flue Restrictor Chart in order to balance the
airflow in and out of the unit and to maintain proper flame
height.
Vertical Side wall Installation
Flue Restrictor Setting Chart
Vertical Run
Horizontal Run Restrictor Setting
0-8 feet of pipe
2-8 feet of pipe
Minimum restriction
(0 – 2.4 m)
(.6 – 2.4 m)
Figure 39
8-12 feet of pipe
0-12 feet of pipe
Medium restriction
(2.4 – 3.7 m)
(1.2 – 3.7 m)
Figure 40
12-40 feet of pipe 2-10 feet of pipe Maximum restriction
(3.7 – 12 m)
(.6 – 3 m)
Figure 41
FP3042
restrictor 75
Figure 40 –
Flue Restrictor Set at Medium Restriction
FP3042
FP3043
restrictor 100
Figure 41 –
Flue Restrictor Set at Maximum Restriction
FP3043
VERTICAL SIDE WALL INSTALLATION –
PIPE
NOTE:
For all top vent vertical through-the-roof installa-
tions, install the supplied flue restrictors onto the top edge
of the firebox flue adapter according to the
Vertical Side
wall Installation Flue Restrictor Chart.
Step 1
Locate vent opening on the wall. It may be necessary to
first position the fireplace and measure to obtain hole lo
-
cation. Depending on whether the wall is combustible or
noncombustible, cut opening to size.
Figure 42
(For com-
bustible walls first frame in opening.)
NOTE:
When using flex vent, the opening will have to be
measured according to the 1/2" (13 mm) rise in 12" (305
mm) vent run.
Combustible Walls:
Cut a 9"H x 9"W (244 x 244 mm)
hole through the exterior wall and frame as shown.
Figure
42
Noncombustible Walls:
Hole opening must be 7" (178
mm) in diameter.
Step 2
Secure firestop to the inside frame, center in the
9" x 9"
vent opening.
Step 3
Place fireplace into position. Measure the vertical height
(X) required from the base of the flue collars to the center
of the wall opening.
Figure 43
Step 4
Using appropriate length of pipe section(s) attach to fire
-
place by twisting collar.
FP3044
minimum restriction
Figure 39 –
Flue Restrictor Set at Minimum Restriction
FP3044
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