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20
CDV Series Direct Vent Gas Fireplace
20010175
FP1022
Typical Straight Up Installation
1/26/00 djt
50’
(15 m)
Storm Collar
Roof Flash-
ing
Vent
Termination
Roof
2’ Min.
Roof Support
Attic Insulation
Shield
Attic
Insulation
Joists
Joists
FP1022
Fig. 36 Typical straight-up installation.
Min.
2' (610 mm)
FP1185
Fig. 37 Minimum termination to roof clearance.
How to Use the Vent Graph
The vent chart should be read in conjunction with the
following vent installation instructions to determine the
relationship of the vertical and horizontal dimensions of
the vent system.
1. Determine the height of the center of the horizontal
vent pipe exiting through the outer wall. Using this
dimension on the Sidewall Vent Graph (Fig. 38),
locate the point intersecting with the slanted graph
line.
2. From the point of this intersection, draw a vertical
line to the bottom of the graph.
3. Select the indicated dimension, and position the
fireplace in accordance with same.
Example A:
If the vertical dimension from the floor of the fireplace
is 11’ (3.4 m) the horizontal run to the face of the outer
wall must not exceed 14’ (4.3 m).
Example B:
If the vertical dimension from the floor of the unit is 7’
(2.14 m), the horizontal run to the face of the outer wall
must not exceed 8¹⁄₂’ (2.6 m).
36CDVT Vertical Venting
Horizontal dimension from the outside face of the
wall to the center of the fireplace vent flange
Sidewall vent graph showing the relationship between vertical
and horizontal dimensions for a Direct Vent flue system.
Vertical dimension from the floor of the unit
to the center of the horizontal vent pipe
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
eg: A
eg: B
CFM102
DV Graphic
9/28/00 sta
Fig. 38 Sidewall venting graph. (Dimensions in feet)
9. Install storm collar and seal around the pipe.
10. Add additional vent lengths for proper height. (Fig
37)
11. Apply high temperature sealant to 4” and 7” collars
of vertical vent termination and install.