Below Grade Installation - Majestic 33BDVR Installation Instructions And Homeowner's Manual

STEP 6
Apply high temperature sealant to 4" (102mm) and 7"
(178mm) collars or the termination one inch away from
the end. Guide the vent termination's 4" and 7" collars
into their respective vent pipes. Double check that the
vent pipes overlap the collars by 2" (50mm). Secure the
termination to the wall with screws provided and caulk
around the wall plate to weatherproof. (Fig. 27)
X
Fig. 27 Horizontal length requirement.
STEP 7
Support the horizontal pipes every 36" (914mm) with
metal pipe straps. Make sure that the horizontal vent
pipe is installed on a level horizontal plane.
STEP 8
Re-check the fireplace to make sure that it is levelled,
properly positioned, and nailed or screwed to the floor.
If applied, the fireplaces adjustable frame drywall strips
(nailing flanges) should be fastened. Refer to "Framing
& Finishing".
Below Grade Installations
When it is not possible to meet the required vent
terminal clearances of 12" (305mm) above grade level
a snorkel vent kit #7TDVSNORK is required. It allows
installation depth of down to 7" (178mm) 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.
The maximum horizontal run with 24"
vertical rise is 36" (914mm) from the
back of the fireplace to the face of the
exterior wall. See vent graph (Page 12)
for extended horizontal run if the vertical
rise exceeds 24" (610mm).
10003357
BDVR Series Direct Vent Gas Fireplace
1. Establish vent hole through the wall. (Fig. 23)
2. Remove soil to a depth of approximately 16"
(406mm) below base of snorkel. Install window well
(not supplied). Refill hole with 12" (305mm) of
coarse gravel leaving a clearance of approximately
4" (102mm) below snorkel. (Fig. 28)
3. Install vent system. See Page 13, Steps 2 through 5.
4. Ensure a watertight seal is made around the vent
pipe coming through the wall.
X
5. Apply high temperature sealant caulking (supplied)
around the 4" and 7" snorkel collars.
6. Slide into the vent pipe and secure to the wall.
7. Level the soil to maintain a 4" (102mm) clearance
below snorkel. (Fig. 28)
Zero Clearance
Sleeve
(if required)
Firestop
7" Pipe
CFM138
24" (610mm)
Minimum*
Fig. 28 Below grade installation.
Foundation Recess
Recess Brackets
Watertight Seal
Around Pipe
Fig. 29 Snorkel installation, recessed foundation.
Foundation Wall
*A minimum of 24" (608mm)
vertical pipe must be installed
when using 7TDVSNORK Kit.
Do not back fill around snorkel. A
clearance of at least 4" (102mm) must be
maintained between the snorkel and the
soil.
Sheet Metal
Screws
7TDVSNORK
(Snorkel)
4" (102mm)
Clearance
Min.
Window
Well
Gravel
Drain
BG400
Snorkel
Wall Screws
BG401
17