CDV Series Direct Vent Gas Fireplace
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| Vent |
| Roof | Termination | |
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| 2’ Min. | Storm Collar |
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| Roof Flash- |
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| Roof Support | ing |
50’ |
| Attic Insulation |
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| Shield |
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(15 m) |
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Attic |
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| Insulation |
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| Joists |
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| Joists |
FP1022
Fig. 36 Typical straight-up installation.
Min.
2' (610 mm)
FP1185
Fig. 37 Minimum termination to roof clearance.
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.
36CDVT Vertical Venting
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).
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| tothe | Vertical |
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| center of thehorizontalventpipe | dimension fromtheflooroftheunit |
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| eg: A |
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3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 12 | 13 14 | 15 16 | 17 18 | 19 | 20 |
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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.
Fig. 38 Sidewall venting graph. (Dimensions in feet)
20 | 20010175 |
