Cathedral Ceilings - Regency ULTIMATE U39 Owners & Installation Manual

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 suffi cient size to meet
the minimum requirements for clearance
to combustibles of 1-1/4". Slip the fl ashing
under the shingles (shingles should overlap
half the fl ashing) as per diagram 11.
Diagram 11: The upper half of the fl ashing is
installed under the roofi ng material and not
nailed down until the chimney is installed. This
allows for small adjustments.
6) Continue to assemble pipe lengths.
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 roofl ine.
The galvanized fi nish is desirable above
the roofl ine due to its higher corrosion
resistance.
Continue to add pipe sections through the
fl ashing until the height of the vent cap meets
the minimum height requirements specifi 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.
Diagram 12
Regency ® U39 ULTIMATE Direct Vent Freestanding Gas Stove
Roof Pitch Minimum Vent Height
Feet
fl at 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 vent is vertical and secure the base
of the fl ashing to the roof with roofi 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 multistorey vertical installations,
a Ceiling Fire stop (Part # 963) is
required at the second fl oor, and any
subsequent fl oor. Diagram 13. The
opening should be framed to 10 " x 10"
inside dimensions, in the same manner
as shown in diagram 10.
Diagram 13
INSTALLATION
Offset Chart
Meters
0.61
0.61
0.61
0.76
0.99
1.22
1.52
1.83
2.13
2.29
2.44
b) Any occupied areas above the fi rst fl oor,
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.
0/12 - 2/12
2/12 - 7/12
7/12 - 12/12
12/12 - 24/12
24/12+
Slope "X"
4"
5-1/2"
6-3/4"
7-1/2"
12-1/2"
19