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125204-01C
11
Figure 7 - Vent Termination (Horizontal)
Direct vent
Pipe
Wall Firestop
Maintain 1"
Minimum
Air Space
Around Outer
Pipe when
Penetrating a
Wall
Horizontal
Termination
(Vent Cap)
Screws
Exterior Wall
with Vinyl
Siding
Deflector
Shield
Minimum Pipe
Overlap 1
1
/
4
"
Siding Standoff
(Optional)
10
3
/
4
" x 10
3
/
4
"
Framed Opening
5.
For horizontal installation
, an optional
siding standoff may be installed between
vent cap and exterior wall. Secure horizon
-
tal vent cap to standoff. Secure standoff/
vent cap assembly to wall (see Figure 7).
Do not seal termination to vent pipe. Vent
termination must be removable for service
pipe inspection.
6.
For vertical installation,
a vertical termi-
nation is available. A vertical flue restric
-
tor must be installed into inner collar of
fireplace as shown in Figure 6, page 9.
When installing a length of pipe for vertical
termination that is over 3 ft., support pipe
every 3 ft. using metal wall straps. Vertical
to horizontal pipe must be kept at a 1 ft. to
4 ft. ratio with a maximum run of no more
than 20 ft.
If an offset is necessary in attic to avoid
obstruction, it is important to support vent
pipe every 3 ft. to avoid excessive stress
on elbows and possible separation (see
Figure 8).
INSTALLATION
Continued
Figure 8 - Vertical Termination with
Offset and Wall Strap
Wall
Strap
Roof
Flashing
45° Elbows
Ceiling Firestop
Horizontal Termination Configurations
Figures 9 through 13, page 11 show different
configurations and alternatives for venting
with horizontal termination. Each figure
includes a chart with critical minimum and
maximum dimensions which MUST be met.
IMPORTANT:
Remember that a horizontal
run of venting must have a 1/4" rise for every
12" of run toward termination.
WARNING: Never run vent
downward as this may cause
excessive temperatures which
could cause a fire. Operation of
improperly installed and main
-
tained venting system could
result in serious injury, property
damage or loss of life.
f i r e - p a r t s . c o m
