Vermont Castings Intrepid INDVRCB Homeowner's Installation And Operating Manual page 18

Intrepid® Direct Vent - Rear Vent Gas Heater
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 Pages 10 and 11 for proper Termination Clear-
ances.
For installations requiring a vertical rise on the exterior
of the building, 14" (356 mm) and 36" (914 mm) tall snor-
kel terminations are available. (Fig. 27) 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 enter-
ing the snorkel termination. (Fig. 28) Do not attempt to
enclose the snorkel within the wall or any other type of
enclosure.
Figure 27
Figure 28
ST979
simpson snorkel
8/07
Step 4. Position the horizontal termination cap in the cen-
ter of the square framed hole, and attach to the exterior
St980
wall with the four (4) wood screws provided. Before at-
simp snork drain
taching the vent termination cap to the exterior wall, run
8/07
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. (Fig. 29)
18
Snorkel
12" (305 mm)
Minimum
4"
(102 mm)
ST979
Snorkel
12" (305 mm)
Minimum
4" (102 mm)
ST980
NOTES:
1. The four (4) wood
screws provided
should be replaced
with appropriate
fasteners for use on
brick, block, con-
crete or other types
of sidings.
2. For buildings with
vinyl siding or stuc-
co, another compo-
nent must be used
between the hori-
zontal termination
cap and the wall
surface. The vinyl
siding standoff pre-
vents excessive
heat from possibly melting the vinyl siding material. Vi-
nyl siding standoffs are not required with snorkels. For
vinyl wall installations a 4-piece vinyl siding standoff
should be assembled and installed between the hori-
zontal termination cap and the exterior wall. (Fig. 30)
The vinyl should be cut away to the outer edges of the
assembled standoff.
Figure 30
Cut Back
Siding
ST982
Sconce
Cap
IMPORTANT: You must attach the four (4) pieces of the
new vinyl siding standoff to the horizontal termination cap
in specific order to ensure a weather tight fit. Loosely as-
semble the four parts, in order, around the base of the hor-
izontal termination cap. Place the first of four pieces 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 bot-
tom edge of the cap. Tighten all screws and mount cap,
with all four (4) pieces attached, directly onto the wall with
the four (4) 2¹⁄₂" (64 mm) screws provided. (Fig. 30)
Figure 29
Wood
Screws
HOT
ST981
ST981
SIMP termination
8/07
4 pc. Vinyl Siding
Standoff
Wood Screws
(4 Req.)
Round
Cap
Wood Screw
20012761