Vermont Castings Intrepid INDVRBDSB Installation & Operating Manual page 24

2. The location of the horizontal vent termination on an
exterior wall must meet all local and national building
codes, and must not be easily blocked or obstructed.
Refer to "Vent Termination Clearances" for proper
Termination Clearances.
For installations requiring a vertical rise on the exterior of
the building, 14" (356 mm) and 36" (914 mm) tall snorkel
terminations are available, Figure 3.26. Follow the same
installation procedures as used for standard horizontal
terminations. If the snorkel termination must be installed
below grade level, (i.e. basement application), proper
drainage must be provided to prevent water from entering
the snorkel termination, Figure 3.27. Do not attempt to
enclose the snorkel within the wall or any other type of
enclosure.
Figure 3.26
ST979
simpson snorkel
8/07
Figure 3.27
St980
Step 4 - Position the horizontal termination cap in the center
simp snork drain
03/19
of the square framed hole, and attach to the exterior wall
with the four (4) wood screws provided. Before attaching
the vent termination cap to the exterior wall, run a bead of
non-hardening silicone sealant around the outside edges to
make a seal between the cap and the wall. The arrow on the
vent cap should be pointing up. Ensure proper clearances
to combustible materials are maintained, Figure 3.28.
2424
12" (305 mm)
Minimum
12"
(305 mm)
Snorkel
12" Min
(305 mm)
Grade
Adequate
Drainage
Vermont Castings • Intrepid DV-IFT Owner's Manual_R20 • 11/21
NOTES:
1. The four (4)
wood screws
provided should
be replaced
with appropriate
fasteners for use
on brick, block,
concrete or other
types of sidings.
2. For buildings with
vinyl siding or
stucco, another
component must
be used between
the horizontal
termination cap
and the wall
surface. The vinyl
Figure 3.28
siding standoff
prevents excessive heat from possibly melting the vinyl
siding material. Vinyl siding standoffs are not required
with snorkels. For vinyl wall installations a 4-piece vinyl
siding standoff should be assembled and installed
between the horizontal termination cap and the exterior
wall, Figure 3.29. The vinyl should be cut away to the
outer edges of the assembled standoff.
Cut Back
Siding
Figure 3.29
IMPORTANT: You must attach the four (4) pieces of the
new vinyl siding standoff to the horizontal termination
ST982
cap in specific order to ensure a weather tight fit. Loosely
simp vinyl sidind
assemble the four parts, in order, around the base of the
horizontal termination cap. Place the first of four pieces
8/07
along the upper edge of the cap, then using two (2) screws
per side, secure each piece to the pre-drilled holes along
both sides of the cap, finally, attach the final piece to the
bottom edge of the cap. Tighten all screws and mount cap,
with all four (4) pieces attached, directly onto the wall with
the four (4) 2-1/2" (64 mm) screws provided, Figure 3.29.
Wood
Screws
HOT
ST981
SIMP termination
8/07
4 pc. Vinyl Siding
Standoff
Wood Screws
(4 Req.)
Wood Screw
3-90-30007474