Heat & Glo TIARAI-BK-B Owner's Manual page 14

Step 3.
For installations using a round support box/wall thimble
(check pipe manufacturer's instructions), mark the wall for a
10 in. x 10 in. (254mm x 254mm) square hole. The center
of the square hole should line up with the center line of the
horizontal pipe, as shown in Figure 5.5. Cut and frame the
hole in the exterior wall where the vent will be terminated. If
the wall being penetrated is constructed of noncombustible
material, i.e. masonry block or concrete, a 7 in. (178mm)
diameter hole is acceptable.
CENTER
LINE
Figure 5.5
NOTE:
(1) Installation requires a minimum of 6 in. (152mm)
horizontal run of vent with a 1/4 in. (6mm) rise run towards
the termination. Each 1 ft. (305mm) of horizontal venting
must include a 1/4 in. (6mm) rise. Never allow the vent
to run downward. This could cause high temperatures
and may present the possibility of a fire.
(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,
see Figure 4.4 on page 10.
(3) For installations requiring a vertical rise on the exterior
of the building, the HHT RHVK snorkel kit (Part #844-
8921) is available with a 14 in. (356mm) and a 36 in.
(914mm) tall snorkel termination cap.
same installation procedures as used for standard
horizontal terminations. If the snorkel termination must
be installed below grade (i.e. basement application),
proper drainage must be provided to prevent water from
entering the snorkel termination. Do not backfill around
snorkel termination.
Step 4.
Position the horizontal termination cap in the center of the 10
in. x 10 in. (254mm x 254mm) square hole and run a bead
of non-hardening mastic around its outside edges, so as to
make a seal between it and the wall, attach termination cap
to the exterior wall with the four wood screws provided. The
arrow on the vent cap should be pointing up (Figure 5.6).
Page 14
CENTER OF
HOLE
WALL
CENTER
LINE
THIMBLE
Heat & Glo · Tiara I B & Tiara II B · 7010-149L
Figure 5.6
NOTES:
(1) The four wood screws provided should be replaced with
appropriate fasteners for stucco, brick, concrete, or
other types of sidings.
(2) Termination cap HHW2 (Part #841-0670) is highly
recommended on a building with vinyl siding, as the
vinyl siding standoff is built in. The pilot hole will be 2 in.
(51mm) closer to the bottom of the square than the top.
Using a framing square, draw a 14 in. x 14 in. (356mm x
356mm) square around the pilot hole. See Figure 5.7.
Figure 5.7
Follow the (NOTE: If you are installing termination cap HHW2, the
pipe will be off center on flashing). Ensure that proper
clearances to combustible materials are maintained. If
you are using an approved termination cap other than
HHW2 (part #841-0670) on a building with vinyl siding,
a vinyl siding standoff should be installed between
the termination cap and the exterior wall (Figure 5.8,
on the next page). Follow manufacturer's instructions
for attaching the vinyl siding standoff to the horizontal
termination cap. The vinyl siding standoff prevents
excessive heat from possibly melting the vinyl siding
material. The vent terminal cap shall not be recessed
into a wall or siding. Remove siding from the area where
the standoff will be located.
Wood
Screw
HOT HOT
Arrow Pointing "UP"
Wall Thimble
8 in.
(203mm)
7 in.
(178mm)
7 in.
(178mm) 6 in.
(152mm)
November 14, 2007