73D0129
17
DVKHL Series Gas Fireplace
VentInG InStaLLatIOn
BeLOw GraDe InStaLLatIOnS
When it is not possible to meet the required vent terminal clearances of 12" above grade level, a snorkel
kit is recommended. It allows installation depth down to 7" (178mm) below grade level. The 7" (178mm)
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 recommend a window well with adequate and proper drainage to be installed around the ter-
mination area.
If installing a snorkel, a minimum 24" vertical rise is necessary. The maximum horizontal run with the 24”
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
24".
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
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 drilling #8x
1
/
2
sheet metal screws. It will be
necessary to extend vent pipes out as far as the protruding wall face.
Figure 17
w
arn
In
G
• Do not back fill around snorkel.
• a clearance of at least 4" must be
maintained between the snorkel and
the soil.
Figure 17 -
Snorkel Installation, Recessed Foundation
Foundation
Recess
Watertight Seal Around
Pipe
Sheet Metal
Screws
Wall Screws
Snorkel
FP1966
snorkel
FP2134
below grade install
Figure 16 -
Below Grade Installation
Screws
Minimum
4" Clearance
Ground
Window
Well
Gravel
Drain
Foundation Wall
Firestop
24"
Minimum
FP2134
