Vent Requirements - FireplaceXtrordinair 36DV-A/R Owner's Manual

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NSTALLATION
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Vent Requirements

! Always maintain the required 1" clearance (air space) to combustible materials to prevent a fire
hazard. Do not fill air spaces with insulation.
! The gas appliance and vent system must be vented directly to the outside of the building, and never
be attached to a chimney serving a separate solid fuel or gas-burning appliance. Each direct vent gas
appliance must use it's own separate vent system.
! If the fireplace is
installed at an altitude
over 3,000 feet the flame
quality will need to be
carefully evaluated. See
Addendum #1, "Altitude
Considerations", on page
39.
¥ When the vent passes
through a wall, a wall
thimble is required.
When the vent passes
through a ceiling, a
support box or firestop is
required. When the vent
passes through the roof,
a roof flashing and storm
collar are required.
Follow the instructions
provided with the vent
(from Dura-Vent®) for
installing these items.
¥ Use Model GS Direct Vent manufactured by Simpson Dura-Vent only. Follow the installation
instructions included with the vent. For the nearest Simpson Dura-Vent supplier, call
(800) 835-4429. Vent part numbers and descriptions are listed below.
Straight Lengths
908B 6" Pipe Length, Black (interior)
907B 9" Pipe Length, Black (interior)
906 12" Pipe Length, Galvanized
906B 12" Pipe Length, Black (interior)
904 24" Pipe Length, Galvanized
904B 24" Pipe Length, Black (interior)
903 36" Pipe Length, Galvanized
903B 36" Pipe Length, Black (interior)
902 48" Pipe Length, Galvanized
902B 48" Pipe Length, Black (interior)
911B 11" to 14 5/8" Pipe, Adjustable, Black (interior)
¥ Apply high-temperature silicone to the male section of inner
pipe (on the upper section of vent) so the silicone seals the inner
pipe from the outer pipe when the sections are assembled. Slide
the sections together and turn 1/4 turn until the sections lock in
place. Install three metal screws through each joint to lock the
outer section in place (see the instructions included with the vent
for further details).
¥ Horizontal sections require a 1/4" rise every 12" of travel
+ Exterior Vent Diameter = 6-5/8", Inner Vent Diameter = 4"
¥ Horizontal sections require non-combustible support every three feet (e.g.: plumbing tape)
(C .)
ONT
- For Qualified Installers Only!
Vertical Termination (# 991).
Use a roof flashing and storm collar
whenever passing through the roof
(Duravent Part #953 & #943 or #943S)
Use a firestop spacer whenever
passing through a ceiling
(Duravent Part #963)
Minimum framing
for fire stop
8-5/8"
8-5/8"
Minimum
Framing for
wall thimble
Maintain a minimum 1" clearance from vent
to any combustible (vent is 6 5/8" diameter)
Vent Terminations
981
982
984
950
991
Use a support box
on exposed vent
Use a wall thimble
whenever passing
through a wall
(Duravent Part #942)
Elbows
Snorkel Termination (36" rise)
(for basement or raised
termination installations)
Penetration, Support Parts
Snorkel Termination (14" rise)
(for basement or raised
termination installations)
Horizontal Square Termination
Vinyl Siding Stand-off
High Wind Vertical
Termination
Vertical Vent
Requirements
Maintain a minimum 1"
clearance from vent to
any combustible (vent
is 6 5/8" diameter)
Horizontal Vent
Requirements
Horizontal
Termination
990 90¥ Elbow
990B 90¥ Elbow, Black (interior)
942 Wall Thimble
941 Cathedral Ceiling Support Box
943 Flashing, 0/12 to 6/12 Roof Pitch
943S Flashing, 7/12 to 12/12 Roof Pitch
953 Storm Collar
963 Ceiling Firestop
988 Wall Strap
Apply a 1/8" bead of
high-temperature
silicone to the inner
pipe. The silicone
must seal the inner
pipe from the outer
pipe.