STEP 5
Use appropriate length of pipe sections - telescopic or fixed - and install the horizontal vent sections. The sec- tions which go through the wall are packaged with the starter kit, and can be cut to suit if necessary. (Fig. 46)
Sealing vent pipe and firestop gaps with high temperature sealant will restrict cold air being drawn in around fireplace.
FP1242
Fig. 46 Through the wall.
STEP 6
Guide the vent terminations 4” and 7” collars into their respective vent pipes. Double check that the vent pipes overlap the collars by 2” (51mm). Secure the termina- tion to the wall with screws provided and caulk around the wall plate to weatherproof. (Fig. 23) As an alterna- tive to screwing the termination directly to the wall you may also use expanding plugs or an approved exterior construction adhesive. You may also attach the termi- nation with screws through the inner body into the 4” (102 mm) vent pipe however for this method you must extend the 4” (102 mm) pipe approximately 6” (152 mm) beyond the outer face of the wall.
Support horizontal pipes every 3’ (914 mm) with metal pipe straps. Make sure the horizontal vent pipe is in- stalled on a level horizontal plane.
CDV Series Direct Vent Gas Fireplace
FP1243
Fig. 47 Apply high temperature sealant to collars or termina- tions.
Below Grade Installations
When it is not possible to meet the required vent ter- minal clearances of 12” (305 mm) above grade level a snorkel vent kit is recommended. It allows installation depth of down to 7” (178 mm) below grade level. The 7” is measured from the center of the horizontal vent pipe as it penetrates through the wall.
If venting system is installed below ground, we recommend a window well with adequate and proper drainage.
Ensure sidewall venting clearances are observed.
If installing a snorkel a minimum 24” (610 mm) vertical rise is necessary. The maximum horizontal run with the 24” (610 mm) vertical pipe is 36” (914 mm). This measurement is taken from the collar of the fireplace (or transition elbow) to the face of the exterior wall. Refer to the Sidewall Vent Graph for extended horizontal run if the vertical rise exceeds 24” (610 mm).
1.Establish vent hole through the wall. (Fig. 43)
2.Remove soil to a depth of approximately 16” (406 mm) below base of snorkel. Install drain pipe. Install window well (not supplied). Refill hole with 12” (305mm) of coarse gravel leaving a clearance of ap- proximately 4” (102 mm) below snorkel. (Fig. 48)
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 4” and 7 “ snorkel collars.
6.Slide the snorkel into the vent pipes and secure to the wall.
7.Level the soil to maintain a 4” (102 mm) clearance below snorkel. (Fig. 48)
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