Regency
®
U39-12 ULTIMATE™ Freestanding Gas Stove
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25
installation
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.
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". Slip the flashing under the shingles
(shingles should overlap half the flashing) as
per diagram 11.
6.
Continue to assemble pipe lengths.
Diagram 12
8.
Install the vertical termination cap by twist locking
it.
Notes:
a)
For multistory vertical installations, a Ceiling
Fire stop is required at the second floor, and any
subsequent floor. Diagram 13. The opening should
be framed to 10 " x 10" inside dimensions, in the
same manner as shown in diagram 10.
b)
Any occupied areas above the first floor,
including closets and storage spaces, through which
the vertical vent passes, must be enclosed.
Note: If an offset is necessary in the attic
to avoid obstructions, it is important
to support the vent 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 resistance.
Continue to add pipe sections through the
flashing until the height of the vent 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 vent height may solve the problem.
7.
Ensure vent 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.
Offset Chart
Diagram 13
Cathedral Ceilings
Round Support (RDS) &
Square Support (SQS)
If your home has a cathedral ceiling (no attic space
between the ceiling and the roof), install the chimney
and support as follows.
1.
Situate the chimney in a convenient location as
near as possible to the appliance outlet. Cut
and frame a hole in the roof for the support. The
sides of this hole must be vertical with 1 1/4"
clearance.
2.
Place the support in the opening. Lower it to
the correct height as determined by the table
and diagram below.
Using a level, make sure the support is vertical.
Slope
"X"
0/12-2/12
4"
2/12-7/12
5-1/2"
7/12-12/12
6-3/4"
12/12-24/12
7-1/2"
24/12+
12-1/2"
Roof Pitch
Minimum Vent Height
Feet
Meters
flat to 7/12
2
0.61
over 7/12 to 8/12
2
0.61
over 8/12 to 9/12
2
0.61
over 9/12 to 10/12
2.5
0.76
over 10/12 to 11/12
3.25
0.99
over 11/12 to 12/12
4
1.22
over 12/12 to 14/12
5
1.52
over 14/12 to 16/12
6
1.83
over 16/12 to 18/12
7
2.13
over 18/12 to 20/12
7.5
2.29
over 20/12 to 21/12
8
2.44
Summary of Contents for U39-NG12
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