Vent Termination Below Grade - Vermont Castings Stardance 3070 Homeowner's Installation And Operating Manual

10. For both CFM and DuraVent Systems: Install the
vent terminal. (Fig. 33) Apply high temperature
sealant one inch from the ends of the inner and
outer collars. Guide the inner and outer vent termi-
nation collars into the adjacent pipes. Double check
that the vent pipes overlap the collars by 2". Fasten
the termination to the wall with the screws provided,
and caulk the joint with weatherproof sealant.
11. For CFM only: Install Charcoal Gray Pipe Rings
(#7FSDRG) or Polished Brass Pipe Rings
(#7FSDRP) at pipe joints, if desired.
Seal Both
Terminal Ends
Caulk Plate Joint with
Weatherproof Sealant
Fig. 33 Install the vent terminal.

Vent Termination Below Grade

Install Snorkel Kit #7FSDVSKS when it is not possible
to meet the required vent termination clearances of 12"
(305mm) above grade level. The snorkel kit will allow
installation depth of down to 7" (178mm) 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. 34)
NOTE: Be sure to maintain side wall clearances and
vent run restrictions. Refer to Figures 5, 6, 7, and 8.
1. Establish the vent hole through the wall.
2. Remove soil to a depth of approximately 16"
(400mm) below the base of the snorkel. Install a
window well (not supplied). Refill the hole with 12"
(305mm) of coarse gravel and maintain a clearance
of at least 4" (100mm) below the snorkel. (Fig. 34)
3. Install the vent system as described on pages 15-18.
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 snorkel termination to the wall with the screws
provided.
20003456
Vermont Castings Stardance Direct Vent/Natural Vent Gas Heaterr
ST217
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 1/2"
sheet metal screws. Extend the vent pipes out as far
as the protruding wall face. (Fig. 35)
Wall Screws
and Anchors
Snorkel
Termination
Cap
4" Clearance
Gravel
Drain
Window Well
Fig. 34 Snorkel kit installation.
Recessed Wall
Sheet Metal
Screws and
Bracket
Wall Screws
and Anchors
Waterproof Seal
Around Pipe
ST219
Fig. 35 Use extension brackets to mount snorkel against
recessed wall.
Waterproof Seal
Around Pipe
Firestop
ST218
Firestop
Finishing
Collar
7" Pipe
Wall Plate
19