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HORIZONTAL
INSTALLATIONS
Install the vent system according to the
manufacturer's instructions included
with the components.
1) Set the unit in its desired location. Check to
determine if wall studs or roof rafters are in
the way when the venting system is at-
tached. If this is the case, you may want to
adjust the location of the unit. Rough in the
gas preferably on the right side of the unit
and the electrical (junction block is on the left
side) on the left.
2) Direct Vent pipe and fittings are designed
with special twist-lock connections to con-
nect the venting system to the appliance flue
outlet. A twist-lock appliance adaptor is an
available option that must be used in con-
junction with the Simpson Dura-Vent Direct
Vent GS system.
3) Put a bead of silicone inside the outer section
of the adapter and a bead of Stove Mate on
the inner collar. Slip the adapter over the
existing inner and outer flue collar and
fasten to the outer collar only with the 3
supplied screws (drilling pilot holes will
make this easier). Level the fireplace and
fasten it to the framing using nails or screws
through the nailing strips.
4) Assemble the desired combination of pipe
and elbows to the appliance adaptor and
twist-lock for a solid connection.
Note:
a) Twist-lock procedure: Four indentations,
located on the female ends of pipes and
fittings, are designed to slide straight
onto the male ends of adjacent pipes and
fittings, by orienting the four pipe inden-
tations so they match and slide in to the
four entry slots on the male ends, Dia-
gram 1. Push the pipe sections com-
pletely
together, then twist-lock one
section clockwise approximately one-
quarter turn, until the two sections are
fully locked. The female locking lugs will
not be visible from the outside, on the
Black Pipe or fittings. They may be locat-
ed by examining the inside of the female
ends.
Diagram 1
Note: Apply sealant "Mill-Pac" to inner
pipe and high temperature sili-
cone sealant to outer pipe on eve-
ry twist-lock joint.
FPI P36-3 Zero Clearance Direct Vent Gas Fireplace
b) Horizontal runs of vent must be sup-
ported every three feet. Wall straps are
available for this purpose.
5) Mark the wall for a 10" x 10" square hole.
The center of the square hole should line up
with the centerline of the horizontal pipe.
Cut and frame the 10 inch square hole in the
exterior wall where the vent will be termi-
nated. If the wall being penetrated is con-
structed of non-combustible material, i.e.
masonry block or concrete, a 7"(178mm)
dia. (7-1/2"(191mm) dia. for flex) hole is
acceptable.
Note: With Dura-Vent,
the
mini-
mum height
is achieved
by installing a
90
o
elbow di-
rectly to the
flue adaptor.
Diagram 2
Note:
a) The horizontal run of vent must be level,
or have a 1/4 inch rise for every 1 foot
of run towards the termination. Never
allow the vent to run downward. This
could cause high temperatures and may
present the possibility of a fire.
b) The location of the horizontal vent termi-
nation on an exterior wall must meet all
local and national building codes, and
must not be blocked or obstructed. For
External Vent Terminal Locations, see
diagram on page 19.
c) Snorkel Terminations:
For installations requiring a vertical rise
on the exterior of the
building, 14-inch and
36-inch tall Snorkel
Terminations
are
available, as well as
the standard Riser
Vent. Follow
the same in-
s t a l l a t i o n
p r o c e -
dures as
used for
standard
Horizontal
Termina-
tion. NEV-
ER install
the snorkel
u p s i d e
down.
Diagram 3
INSTALLATION
Note:
Vent is only for
use in above
grade
nations.
Diagram 3a
*Diagrams 3 & 4: As specified in CGA B149
Installation Code. Local codes or regula-
tions may require different clearances.
Below Grade Installation
If the Snorkel Termination must be installed
below grade, i.e. basement application, proper
drainage must be provided to prevent water
from entering the Snorkel Termination. Refer to
Diagram 4. Do not attempt to enclose the Snor-
kel within the wall, or any other type of enclo-
sure.
Diagram 4
NOTE: For Snorkel terminations in ABOVE
grade installations, follow nation-
al or local code requirements.
6) The arrow on the vent cap should be
pointing up. Insure that the 1-1/2" clear-
ances to combustible materials are main-
tained (Diagram 4). Install the termination
cap.
The four wood screws provided should be
replaced with appropriate fasteners for
Riser
termi-
31
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