Desa (V)VC42NE - Manual (Page 9)

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www.desatech.com 116237-01A
WARNING: Do not recess vent termination into
any wall. This will cause a fire hazard.
6. Noncombustible Exterior Wall: Position the horizontal vent
cap in the center of the 8 1 /
2
" round hole and attach to the
exterior wall with four screws. Note: The four wood screws
provided should be replaced with appropriate fasteners for
stucco, brick, concrete or other types of sidings. Before attach-
ing the vent cap to exterior wall, run a bead of non-hardening
mastic (pliable sealant) around the outside edges to make a seal
between it and the outside wall.
Combustible Exterior Wall: For vinyl siding, stucco or wood
exteriors, a siding standoff may be installed between the vent
cap and exterior wall. The siding standoff prevents excessive
heat from damaging the siding materials. Siding material
must be cut to accommodate standoff. Bolt the vent cap to the
standoff. Apply non-hardening mastic around outside edge of
standoff. Position the standoff/cap assembly in the center of
the 10 3 /
4
" square hole and attach to exterior wall with wood
screws provided (see Figure 11). The siding standoff must sit
flush against the exterior fascia material.
7. Combustible Exterior Wall Only: Slide the wall firestop over
the vent pipe before connecting horizontal run to vent cap (see
Figure 12).
8. Carefully move fireplace, with vent assembly attached, toward
wall and insert vent pipe into horizontal termination. The pipe
overlap should be a minimum of 1 1 /
4
" (see Figure 13, page 10).
9. Combustible Exterior Wall Only: Slide wall firestop against
interior wall surface and attach with screws provided (see
Figure 12). See Figure 13, page 10 for horizontal termination
details.
VENTING INSTALLATION
INSTRUCTIONS
Continued
VENTING INSTALLATION INSTRUCTIONS
Installation Planning (Cont.)
Figure 10 - Installing Horizontal Vent Cap (Noncombustible
Exterior)
Figure 11 - Installing Siding Standoff (Combustible Exterior)
Vent Cap
(Horizontal
Termination)
Interior Wall
Surface
Wall
Firestop
Horizontal
Vent Pipe
Figure 12 - Connecting Vent Cap with Horizontal Vent Pipe
Screw
Wood Screw
Vent Cap
Cut Siding Away
to Fit Standoff
Wood Screw
Screws
Standoff
Vent Cap
Apply Mastic
to All Four Sides