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126721-01A
12
VENTING INSTALLATION
Continued
5.
Noncombustible Exterior Wall:
Position
horizontal vent cap in center of the 8
1
/
2
" round
hole and attach to exterior wall with four wood
screws provided. Before attaching vent cap
to exterior wall, run a bead of non-hardening
mastic (pliable sealant) around outside edges
to make a seal between it and outside wall.
Note: Four wood screws provided should be
replaced with appropriate fasteners for stucco,
brick, concrete or other types of sidings (see
Figure 11).
Combustible Exterior Wall:
For vinyl siding,
stucco or wood exteriors, a siding standoff
may be installed between vent cap and
exterior wall. Siding standoff prevents exces
-
sive heat from damaging siding materials.
Siding material must be cut to accommodate
standoff. Bolt vent cap to standoff. Apply
non-hardening mastic around outside edge
of standoff. Position standoff/cap assembly
in the center of 11
1
/
2
" square hole and attach
to exterior wall with provided wood screws
(see Figure 12). Siding standoff must sit flush
against exterior fascia material.
6.
Connecting Vent Cap with Horizontal Vent
Pipe:
Slide wall firestop over vent pipe before
connecting horizontal run to vent cap (see
Figure 13).
Carefully move fireplace, with vent assembly
attached, toward wall and insert vent pipe into
horizontal termination. Pipe overlap should be
a minimum of 1
1
/
4
" (see Figure 14).
Slide wall firestop against interior wall surface
and attach with screws provided. See Figure
14, for horizontal termination details.
Place fireplace into position and shim with
noncombustible material if needed. Nail or
screw side flanges to framing to secure unit
in place.
IMPORTANT:
Make sure fireplace is
level before securing. If fireplace is not level it
will not work properly.
Figure 11 - Installing Horizontal Vent Cap
(Noncombustible Exterior)
Wood
Screw
Vent Cap
Figure 12 - Installing Siding Standoff
(Combustible Exterior Wall)
Cut Siding Away to
Fit Standoff
Wood
Screw
Screws
Standoff
Vent
Cap
Vent Cap
(Horizontal
Termination)
Interior Wall
Surface
Wall
Firestop
Horizontal Vent Pipe
Figure 13 - Connecting Vent Cap with
Horizontal Vent Pipe
Screw
Apply
Mastic to All
Four Sides
Figure 14 - Typical Horizontal Termination
Cap Mounting with Additional Siding
Standoff Installed
Siding Standoff
Screws
High Wind
Termination
Apply Mastic
to Outside
Edge of
Standoff
Exterior Wall with Vinyl Siding
11
1
/
2
" x 11
1
/
2
"
Framed Opening
Maintain 1"
Minimum Air
Space Around
Outer Pipe When
Penetrating a Wall
Minimum
Pipe Overlap
1
1
/
4
Wall
Firestop
Direct
Vent
Pipe
Apply Mastic
to All Four Sides
Summary of Contents for DRT4036TEN
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