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Installation
1 6
Vent Requirements
!
The vent must maintain the required clearance to combustible materials to prevent a fire (see
"Clearances" below). 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.
Altitude Considerations
This heater has been tested at altitudes ranging from sea level to 8,000 feet (2,400 M). In this testing we have
found that the heater, with its standard orifice, burns correctly with just an air shutter adjustment.
!
Failure to adjust the air shutter properly may lead to improper combustion which can create a safety hazard.
Consult your dealer or installer if you suspect an improperly adjusted air shutter.
Clearances
Minimum 1" clearance to all combustibles (measured from the outside of the pipe) e x c e p t for the following:
When using 6-5/8" vent, a
horizontal termination, and
an elbow directly off the
top of the fireplace, a 2"
clearance is required
above the horizontal
sections (1" to the side
and below).
Use of 8" Diameter Pipe
•
Most venting configurations use 6-5/8" diameter vent. To achieve longer horizontal runs (over 12')
with a horizontal termination, 8" dia. Simpson Duravent type GS Direct Vent may be used. See the
section "Horizontal Terminations using 8" Diameter Vent" for details. Part Numbers are listed below.
Straight Lengths
1208B
1207B
1206B
1204B
1203B
1202B
1211B
Black
Part Numbers for 6-5/8" Diameter Vent
•
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" Adjustable, Black (interior)
Travis Industries
2" Clearance
6" Pipe Length, Black
9" Pipe Length, Black
12" Pipe Length, Black
24" Pipe Length, Black
36" Pipe Length, Black
48" Pipe Length, Black
11" to 14-5/8" Adjustable Pipe,
(for qualified installers only)
With any vertical
vent directly off the
fireplace, the
clearance is 1".
Max. 3'
Horizontal
Run
Terminations
1284
Horizontal Square Termination
1285
Hor. High Wind Termination
1250
Vinyl Siding Stand-off
Elbows
1245B
45° Elbow, Black
1290B
90° Elbow, Black
Vent Terminations
981
Snorkel Termination (36" rise)
(for basement or raised
termination installations)
982
Snorkel Termination (14" rise)
(for basement or raised
termination installations)
984
Horizontal Square Termination
950
Vinyl Siding Stand-off
991
High Wind Vertical
Termination
9 3 5 0 8 1 1 8
1" Clearance
Penetration, Support
1242
Wall Firestop
1241
Cathedral Ceiling Support Box
1263
Ceiling Fire-stop
1288
Wall Strap
Adapter (6-5/8" to 8" dia.)
925T
DV GS 6-5/8" to 8" Increaser
Elbows
990
90• Elbow
990B
90• Elbow, Black (interior)
Penetration, Support
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 Fire-stop
988
Wall Strap
2 7 0 9 0 0
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