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Diagram 6
7) Install the Wall Thimble in the center of
the 254mm square and attach with wood
screws.
8) Slide the decorative wall thimble up to the
wall surface being careful not to scratch
the paint and attach with screws provided.
Apply decorative brass or chrome trim if
desired. See diagram 7.
Diagram 7
DURA-FLUE VERTICAL
TERMINATION
1) Maintain the 1-1/4" (32mm)
clearances (air spaces) to
combustibles when passing
through ceilings, walls, roofs,
enclosures, attic rafter, or other
nearby combustible surfaces.
Do not pack air spaces with
insulation. Check page 9
for the maximum vertical
rise of the fluing system and
the maximum horizontal offset
limitations.
2) Set the gas appliance in
its desired location. Drop a
plumb bob down from the
ceiling to the position of
the appliance flue exit, and
mark the location where
the flue will penetrate the
ceiling. Drill a small hole
at his point. Next, drop a
plumb bob from the roof
to the hole previously drilled
in the ceiling, and mark the spot where the
flue will penetrate the roof. Determine if
ceiling joists, roof rafters or other framing
will obstruct the fluing system. You may
wish to relocate the appliance or to offset,
as shown in diagram 9 to avoid cutting load
bearing members.
Regency FG39-1 FireGenie Freestanding Gas Stove
3) To install the Round Support Box/Wall Thim-
ble in a flat ceiling, cut a 254mm square hole
in the ceiling centred on the hole drilled in
Step 2. Frame the hole as shown in diagram
10.
Diagram 10
4) Assemble the desired lengths of black pipe
and elbows necessary to reach from the
appliance adaptor up though the Round
Support Box. Insure that all pipes and elbow
connections are in the fully twist-locked
position and sealed.
5) Cut a hole in the roof centred on the small
drilled hole placed in the roof in Step 2. The
hole should be of sufficient size to meet
the minimum requirements for clearance
to combustibles of 1-1/4" (32mm) . Slip the
flashing under the shingles (shingles should
overlap half the flashing) as per diagram
11.
Diagram 8
Diagram 11: The upper half of the flashing is
installed under the roofing material and not
nailed down until the chimney is installed. This
allows for small adjustments.
Diagram 9
INSTALLATION
6) Continue to assemble pipe lengths.
Note: If an offset is necessary in the attic to
avoid obstructions, it is important to
support the flue pipe every 3 feet, to
avoid excessive stress on the elbows,
and possible separation. Wall straps
are available for this purpose. See
diagram 7.
Galvanized pipe and elbows may be utilized
in the attic as well as above the roofline.
The galvanized finish is desirable above the
roofline due to its higher corrosion resist-
ance.
Continue to add pipe sections through the
flashing until the height of the flue cap meets
the minimum height requirements specified
in diagram 12 or local codes. Note that for
steep roof pitches, the vertical height must
be increased. A poor draft, or down drafting
can result from high wind conditions near
big trees or adjoining roof lines, in these
cases, increasing the flue height may solve
the problem.
Diagram 12
Roof Pitch
Minimum Flue Height
Feet
flat to 7/12
2
over 7/12 to 8/12
2
over 8/12 to 9/12
2
over 9/12 to 10/12
2.5
over 10/12 to 11/12
3.25
over 11/12 to 12/12
4
over 12/12 to 14/12
5
over 14/12 to 16/12
6
over 16/12 to 18/12
7
over 18/12 to 20/12
7.5
over 20/12 to 21/12
8
7) Ensure flue is vertical and secure the base
of the flashing to the roof with roofing rails,
slide storm collar over the pipe section and
seal with a mastic.
8) Install the vertical termination cap by twist
locking it.
Meters
0.61
0.61
0.61
0.76
0.99
1.22
1.52
1.83
2.13
2.29
2.44
15
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