Regency Ultimate U39 - Cathedral Ceiling Installation

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U39-10 ULTIMATE Direct Vent Freestanding Gas Stove
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22
installation
Diagram 11: The upper half of the ashing is
installed under the roong 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 sufcient size to meet the minimum
requirements for clearance to combustibles
of 1-1/4". Slip the ashing under the shingles
(shingles should overlap half the ashing) as
per diagram 11.
6. Continue to assemble pipe lengths.
Diagram 12
of the ashing to the roof with roong rails,
slide storm collar over the pipe section and
seal with a mastic.
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 oor, and any subsequent oor.
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 rst oor,
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 rooine.
The galvanized nish is desirable above
the rooine due to its higher corrosion
resistance.
Continue to add pipe sections through the
ashing until the height of the vent cap meets
the minimum height requirements specied
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
Offset Chart
Diagram 13
including closets and storage spaces, through
which the vertical vent passes, must be
enclosed.
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