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Fp1955 horizontal vent cap, Rear wall vent installation, Fp1956 vinyl siding standoff – Monessen Hearth 624DV(ST User Manual

Page 18: Wa rning, Fp1957 install firestop

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18

42D0200

Designer Series Gas Fireplaces

vENTING INSTaLLaTIoN

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 “UP” on the vent cap
facing up. Insure proper clearance of 1" to combustibles
is maintained. Attach the vent cap with four wood screws
supplied. Figure 19

NoTE: Replace the wood screws with appropriate fasteners
for stucco, brick, concrete, or other types of siding.
For vinyl siding, stucco, or wood exterior use vinyl siding
standoffs between vent cap and exterior wall. The vinyl siding
standoff prevents excessive heat from melting the vinyl siding
material. Bolt the vent cap to the standoff. Apply non-harden-
ing mastic around outside edge of the standoff instead of the
vent cap assembly. Use wood screws provided to attach the
standoff. Figure 20
5. Slide fire stop over the vent pipe before connecting hori-

zontal run to vent cap. Figure 21

6. Insert vent pipe into the horizontal termination. The pipe

overlap should be a minimum of 1Z\v". Fasten all vent con-
nections with screws provided.

7. Slide fire stop against the interior wall surface and

attach with screws. Figure 21

REaR waLL vENT INSTaLLaTIoN

(continued)

HOT

FP1956
vinyl siding standoff

Figure 20 -
Installing Vinyl Siding Standoff

Apply
Mastic to All
Four Sides

Cut Vinyl Siding Away
to Fit Standoff

Wood Screw

Vent Cap

Bolt

Nut

Standoff

Deflecting
Shield

w

a

RNING

do not recess vent termination into any wall.
This will cause a fire hazard.

HOT

FP1955
horizontal vent cap

Figure 19 -
Installing Horizontal Vent Cap

Vent Cap

Wood Screw

Apply Mastic to
All Four Sides

Deflecting
Shield

FP1955

FP1956

FP1957
install firestop

Figure 21 -
Connecting Vent Cap with Horizontal Vent Pipe

Interior Wall
Surface

Horizontal
Vent Pipe

Screw

Vent Cap
(Horizontal
Termination)

FP1957

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