venting installation | WDV Series Gas Fireplace |
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B 7’
A 10’
90° Elbow = 3'
10’ |
| A + B = 17' Maximum |
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FP2426
Figure 14 -
Maximum Vent Run with Elbows
Example: | Elbow 1 | = | 90° |
| Elbow 2 | = | 45° |
| Elbow 3 | = | 45° |
| Elbow 4 | = | 90° |
Total Angular Variation | = | 270° | |
| 1 |
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| 2 |
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| 3 |
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| 4 |
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| 12" |
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| Minimum |
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Figure 15 - |
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| FP1180 |
Maximum Elbow Usage |
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Below Grade Installations
When it is not possible to meet the required vent terminal clearances of 12" above grade level, a snorkel kit is recom- mended. It allows installation depth down to 7" (178 mm) below grade level. The 7" (178 mm) is measured from the center of the horizontal vent pipe as it penetrates through
the wall.
Ensure that sidewall venting clearances are observed. If venting system is installed below ground, we recom- mend a window well with adequate and proper drainage to be installed around the termination area.
If installing a snorkel, a minimum 12" vertical rise is neces- sary. The maximum horizontal run with the 12” vertical pipe is 36". This measurement is taken from the collar of the fireplace (or transition elbow) to the face of the exterior wall. See the Sidewall Venting Graph for extended horizontal run if the vertical exceeds 12".
1.Establish vent hole through the wall.
2.Remove soil to a depth of approximately 16" below base of snorkel. Install drain pipe. Install window well (not supplied). Refill hole with 12" of coarse gravel leaving a clearance of approximately 4" below snorkel. Figure 16
3.Install vent system.
4.Ensure a watertight seal is made around the vent pipe coming through the wall.
5.Apply high temperature sealant caulking (supplied) around the 5" and 8" snorkel collars.
6.Slide the snorkel into the vent pipes and secure to the wall.
7.Level the soil so as to maintain a 4" clearance below snorkel. Figure 16
| Screws | |
Firestop |
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| Minimum | |
| 4" Clearance | |
| Ground | |
12" | Window | |
Well | ||
Minimum | ||
Gravel | ||
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| Drain | |
| Foundation Wall | |
| Figure 16 - | |
FP2134 | Below Grade Installation | |
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If the foundation is recessed, use recess brackets (not supplied) for securing lower portion of the snorkel. Fasten brackets to wall first, then secure to snorkel with self drill- ing #8 x 1/2" sheet metal screws. It will be necessary to extend vent pipes out as far as the protruding wall face. Figure 17
78D0011 | 15 |
