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125206-01B
14
VENTING INSTALLATION
Continued
Note: You may use two 45° elbows in place of
a 90° elbow. You must follow rise to run ratios
when using 45° elbows.
For two-story applications, firestops are
required at each floor level. If an offset is
needed in the attic, additional pipe and elbows
will be required.
You may use a chase with a vent termination
with exposed pipe on exterior of house. See
Installing Vent System in a Chase
.
Your FMI PRODUCTS, LLC direct-vent
fireplace has been tested for a minimum 3'
rise with a maximum 11" wall thickness. Any
horizontal application longer than 12" must
provide a minimum of 1 foot of vertical rise for
every 3 feet of horizontal run. The maximum
horizontal run is 20' with 8' vertical rise (see
Installation for Horizontal Termination
). The
maximum vertical run is 30' (see
Installation
for Vertical Termination
, page 17).
Installing Vent System in a Chase
A chase is a vertical box-like structure built to
enclose venting that runs along the outside
of a building.
NOTICE: Treatment of firestops
and construction of the chase
may vary from building type to
building type. These instruc
-
tions are not substitutes for the
requirements of local building
codes. You must follow all local
building codes.
Note: When installing in a chase, you should
insulate the chase as you would the outside
walls of your home. This is especially im-
portant in cold climates. Minimum clearance
between vent pipes and combustible materials
such as insulation is 1".
After framing chase (see
Framing
on page
8) install vent system by following installation
instructions.
INSTALLATION FOR HORIZONTAL
TERMINATION
1. Determine the route your horizontal vent-
ing will take.
Note: The location of horizon-
tal vent termination on exterior wall must
meet all local and national building codes
and must not be blocked or obstructed.
Figure 16 - Snorkel Termination with
Drainage Pipe
Figure 15 - Snorkel Termination
Snorkel
1' Minimum
90º
45º
Snorkel
1' Minimum
90º
45°
12"
Minimum
12"
Minimum
WARNING: Do not recess
vent terminal into a wall or sid-
ing. This is a fire hazard.
Snorkel terminations are available for
terminations requiring a vertical rise on
the exterior of building (see Figures 15
and 16). Snorkel kits are available for
rigid pipe applications only to provide a
14" rise and a 36" rise (see page 22).
Follow the same installation procedures
used for standard horizontal terminations.
If installing snorkel termination to raise
vent termination from below grade level
such as in a basement installation, you
must provide proper drainage to prevent
water from entering snorkel termination
(see Figure 16). Do not back fill around
snorkel termination.
Adequate
Drainage
f i r e - p a r t s . c o m
