Monessen Hearth BLDV400 Installation And Operating Instructions Manual page 18

VENT INSTALLATION
REAR (THROUGH-THE-WALL) APPLICATIONS (continued)
4. Apply a bead of non-hardening mastic around the outside
edge of vent cap. Position the vent cap in the center of hole
on the exterior wall with the word "HOT" on the vent cap
facing up. Insure proper clearance of 1" to combustibles is
maintained to the flue. Attach the vent cap with four wood
screws supplied. Figure 13
Do not recess vent
termination into any
wall. This will cause a
fire hazard.
NOTE: Replace the wood screws with appropriate fasten-
ers for stucco, brick, concrete, or other types of siding.
A vinyl siding standoff (part #950) must be used with the Simp-
son/Selkirk Horizontal Termination (part #985) on vinyl, stucco
or wood-clad exterior walls. Apply non-hardening mastic around
outside edge of the standoff instead of the vent cap assembly.
Figure 14
5. Slide the firestop over the vent pipe before connecting the
horizontal run to the vent cap. Figure 15
6. The termination should overlap the flue a minimum of 11/4".
Apply silicone to the outer pipe/termination connection. Fasten
termination with screws provided.
7. Slide the firestop against the interior wall surface and attach
with screws. Figure 15
Apply
Mastic to all
Four Sides
Figure 14 - Installing Simpson/Selkirk Vinyl
Siding Standoff and Termination
18
Cut Vinyl Siding
Away to Fit Standoff
Standoff #950
T
H O
Nut
Wood Screw
Bolt
Apply Mastic to
all Four Sides
Figure 13 - Installing Horizontal Termination
Vent Cap
(Horizontal
Termination)
Simpson
Termination
#985
H O
Inerior Wall
Surface
Screw
Figure 15 - Installing Firestop on
Horizontal Vent Pipe
Vent Cap
T
Wood Screw
Firestop
Horizontal
Vent Pipe
74D0009