Desa CSDPBN - Manual (Page 14)

111739-01A
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14
VENTING INSTALLATION
Continued
Figure 28 - Installing Horizontal Vent Cap (Noncombustible
Exterior)
WARNING: Do not recess vent termination in to
any wall. This will cause a fire hazard.
Figure 29 - Installing Vinyl Siding Standoff (Combustible
Exterior Wall)
Figure 30 - Connecting Vent Cap with Horizontal Vent Pipe
3. Attach vent pipe assembly to the burner system. Set stove in
front of it’s permanent location to insure minimum clearances.
Mark the wall for a 10" (25.4 cm) square hole (for noncom-
bustible material such as masonry block or concrete, a 7
1 /
2
"
[19.1 cm] diameter hole is acceptable). See Figure 25. The center
of the hole should line up with the center-line of the horizontal
rigid vent pipe. Cut a 10" x 10" (25.4 cm x 25.4 cm) square hole
through combustible exterior wall (7
1 /
2
" [19.1 cm] diameter hole
if noncombustible). Frame as necessary (see Figure 27).
4. Noncombustible Exterior Wall: Apply a bead of non-harden-
ing mastic around the outside edge of the vent cap. Position the
vent cap in the center of the 7
1 /
2
" (19.1 cm) hole on the exterior
wall with the arrow on the vent cap pointing up. Attach the vent
cap with four wood screws provided (see Figure 28).
Note : Re-
place the wood screws with appropriate fasteners for stucco, brick,
concrete, or other types of siding.
Combustible Exterior Wall: For vinyl siding, stucco, or wood
exteriors, a siding standoff must be installed between the vent
cap and exterior wall. The siding standoff prevents excessive
heat from damaging siding materials. Siding materials must be
cut to accommodate standoff. Bolt the vent cap to the stand-
off. Apply non-hardening mastic around outside edge of the
standoff. Position the standoff/cap assembly in the center of
the 10" (25.4 cm) square hole and attach to exterior wall with
wood screws provided (see Figure 29). The siding standoff must
sit flush against the exterior fascia material.
5. Combustible Exterior Wall Only: Slide the interior wall
firestop over the vent pipe before connecting the horizontal
run to the vent cap (see Figure 30).
6. Carefully move the fireplace with vent assembly attached toward
the wall and insert the vent pipe into the horizontal termination.
The pipe overlap should be a minimum of 1
1 /
4
" (3.2 cm). Fasten
all vent pipe connections (except vent cap) with screws provided.
7. Combustible Exterior Wall Only: Slide the wall firestop
against the interior wall surface and attach with screws pro-
vided (see Figure 30).
Figure 27 - Vent Opening Requirements
VENTING INSTALLATION
Installation for Horizontal Termination (Cont.)
Wood Screw
Vent Cap
Cut Vinyl Siding
Away to Fit Standoff
Wood Screw
Bolt
Standoff
Vent Cap
Apply Mastic
to All Four Sides
Vent Cap
(Horizontal
Termination)
Interior Wall
Surface
Interior Wall Firestop
(Combustible
Exterior Wall Only)
Horizontal
Vent Pipe
Screw