Avalon Firestyles Chelan DV-1996 to 1999 - Manual (Page 8)

P AGE 8
S
TOVE
I
NSTALLATION
(
CONT
.)
- For Qualified Installers Only!
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 heater 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 43.
¥ 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 Duravent

) for
installing these items.
Use a firestop spacer whenever
passing through a ceiling
(Duravent Part #963)
Vertical Termination
(Duravent Part # 991)
Use a roof flashing and storm collar
whenever passing through the roof
(Duravent Part #953 & #943 or #943S)
8-5/8"
Maintain a minimum 1"
clearance from vent to
any combustible (vent
is 6 5/8" diameter)
Use a support box
on exposed vent
Vertical Vent
Requirements
Use a wall thimble
whenever passing
through a wall
(Duravent Part #942)
Horizontal Termination
(Duravent Part #984) Maintain a minimum 1" clearance from vent
to any combustible (vent is 6 5/8" diameter)
Minimum
Framing for
wall thimble
Horizontal Vent
Requirements
8-5/8"
Minimum framing
for fire stop
¥ Use Model GS Direct Vent manufactured by Simpson Dura-Vent only (or the Chimney Conversion
Kit - see Addendum #2). Follow the installation instructions included with the vent. For the nearest
Simpson Dura-Vent supplier, call (800) 835-4429. 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)
Vent Terminations
981 Snorkel Termination (36" rise)
(for basement installations)
982 Snorkel Termination (14" rise)
(for basement installations)
984 Horizontal Square Termination
950 Vinyl Siding Standoff
991 Vertical Termination
Elbows
990 90¥ Elbow
990B 90¥ Elbow, Black (interior)
945 45 ° Elbow
945B 45 ° Elbow, Black (interior)
Penetration, Support Parts
942 Wall Thimble
940 Optional Wall Thimble Cover
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 high-temperature silicone to the inner and outer pipe before
assembling the sections (on the male, upper section). This seals
the inner pipe from the outer pipe. 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"
Apply a 1/8" (3 mm)
bead of high-
temperature silicone
to the inner and
outer pipe. The
silicone must seal
the inner pipe from
the outer pipe.
Silicone
Silicone
¥ Horizontal sections require non-combustible support every three feet (e.g.: plumbing tape)
¥ NOTE: You may screw the vent to the appliance (do not seal with silicone).