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20
Initial Installation
QUALIFIED INSTALLERS ONLY
VENTING:
This replace has been tested and certied for use with SIMPSON DURAVENT DIRECT VENT TYPE “GS”
PIPE FOR GAS STOVES, SECURITY CHIMNEY’S SECURE VENT DIRECT VENT SYSTEM kits, and MDV
SELKIRK METALBESTOS.
A 1” (25 mm) clearance to combustibles must be maintained around any vertical vent pipe. Around a
horizontal vent pipe, the clearance to combustibles should be 2” (51 mm) above and 1” (38 mm) on the
sides and bottom. When combustible materials are directly above a 90° elbow, 5” (127 mm) of clearance
are necessary (see Figure 20).
Table 5. Vent Pipe Minimum Clearances.
Vertical Pipe to
the Side Walls
Horizontal Pipe to
the Sides & Bottom
Above an Elbow
Above the Unit
Above an Elbow
Not Above the Unit
Above Horizontal
Vent Pipe
Wall Frame 8”
(203mm) or less
Hard
Pipe
1”
(25.4 mm)
1”
(38.1 mm)
4”
(102 mm)
3”
(76.2 mm)
2”
(51 mm)
10”x10”
(25x25cm)
Flex
Pipe
1”
(25.4 mm)
1”
(38.1 mm)
8”
(203 mm)
4 3/8”
(111 mm)
4 3/8”
(111 mm)
10”x10”
(25x25cm)
A 10” (254 mm) x 10” (254 mm) frame (see Figure 24) will assure the proper support and spacing for
the vent pipe as it passes through the wall. Installations in Canada require that a wall thimble be used
for passing through walls and ceilings. All sealing and vapour barriers must comply with local building
codes.
When planning an installation, it is necessary to select the proper length of vent pipe for the particular
requirements. The conguration of the venting pipes depends on the locations of walls, ceilings and
2" (51mm)
4" (102mm)
10"
(254mm)
38"
(978mm)
Framing
Joists/Studs
10”
10”
Figure 24. Vent Framing Through Wall/Ceiling
Figure 23. Hard Vent Pipe Clearances.
studs. However, the pipes cannot be of arbitrary length
and arrangement. Because the length of the vertical and
horizontal sections dramatically affects the burning efciency
of the replace, certain guidelines have been set in INITIAL
INSTALLATION - VENT CONFIGURATIONS AND RESTRICTOR SETTINGS.
Venting terminals can not be recessed into a wall or siding.
WARNING: This gas appliance must not be connected
to a chimney ue serving a separate solid-burning
appliances.