Vent Termination Below Grade; Vertical (Through The Roof) Vent Assembly - Vermont Castings RADVTCB Homeowner's Installation And Operating Manual

Radiance ® Direct Vent Gas Heater
11. For Vermont Castings Group only: Install Charcoal
Gray Pipe Rings (#7FSDRG) or Polished Brass Pipe Rings
(#7FSDRP) at pipe joints, if desired.

Vent Termination Below Grade

Install Snorkel Kit #7FSDVSKS when it is not possible to
meet the required vent termination clearances of 1" (305
mm) above grade level. The snorkel kit will allow installa-
tion depth of down to 7" (178 mm) below grade level. The
seven inches is measured from the center of the horizontal
vent pipe as it penetrates the wall. If the venting system is
installed below grade, a window well must be installed
with adequate and proper drainage. (Fig. 31)
NOTE: Be sure to maintain side wall clearances and vent
run restrictions. Refer to Page 7, Figures 3, 4, 5, 6.
1. Establish the vent hole through the wall.
. Remove soil to a depth of approximately 16" (406 mm)
below the base of the snorkel. Install a window well (not
supplied). Refill the hole with 1" (305 mm) of coarse
gravel and maintain a clearance of at least 4" (10 mm)
below the snorkel. (Fig. 31)
3. Install the vent system as described on Pages 16-18.
4. Be sure to make a watertight joint around the vent pipe
joint at the inside and outside wall joints.
5. Apply high temperature sealant around the inner and
outer snorkel collars. Join the pipes and fasten the snor-
kel termination to the wall with the screws provided.
6. Level the soil to maintain a 4" clearance below the
snorkel.
If the foundation is recessed, use extension brackets
(not supplied) to fasten the lower portion of the snorkel.
Fasten the brackets to the wall first, and then fasten
to the snorkel with self-tapping #8 x 1/" sheet metal
screws. Extend the vent pipes out as far as the protrud-
ing wall face. (Fig. 31)
Recessed Wall
Sheet Metal
Screws and
Bracket
Wall Screws
and Anchors
Waterproof Seal
Around Pipe
ST19
Fig. 30 Use extension brackets to mount snorkel against
recessed wall.
00
ST219
snorkel detail
Snorkel
Termination
Cap
Fig. 31 Snorkel kit installation.
Make certain the vent system conforms to all other require-
ments for vertical termination as specified on Page 9.
This installation will require you to first determine the roof
pitch and use the appropriate vent components. Refer to
Figure 11 on Page 11.
1. Locate the final position of the stove, observing all clear-
ances for both the vent and the stove.
. Plumb to the center of the inner (4") flue collar from the
ceiling above, and mark that location.
3. Cut the opening:
Vermont Castings Group System:
9³⁄₈" x 9³⁄₈" (240 x 240 mm)
DuraVent System: 10" x 10" (254 x 254 mm)
Firestop
4. Plumb any additional opening through the roof or other
Finishing
construction that may be needed. In all cases, the open-
Collar
ing must provide a minimum of 1" (5 mm) clearance
to the vent pipe.
5. Place the stove in its final position.
6. Install firestop(s) #7DVFS and Attic Insulation Shield
#7DVAIS as needed. (Fig. 3) If there is a room above
ceiling level, a firestop must be installed on both the
7" Pipe
bottom and top sides of the ceiling joists. If an attic is
above ceiling level, an attic insulation shield must be
Wall Plate
installed.
Wall Screws
and Anchors
4" Clearance
Gravel
Drain
Window Well
ST653
Vertical (Through the Roof)
install snorkel
Vent Assembly
4/20/01 djt
Waterproof Seal
Around Pipe
Firestop
RADIANCE
ST653
30004967