Waterford Appliances E65-NG1 - Manual (Page 21)

Waterford E65-1 Emerald Direct Vent Freestanding Gas Stove 21
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 loca-
tion 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.
Offset Chart
Diagram 12
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.
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 floor, and any subse-
quent floor. Diagram 12. The opening
should be framed to 10 " x 10" inside
dimensions, in the same manner as
shown in diagram 9.
b) Any occupied areas above the first
floor, including closets and storage
spaces, through which the vertical
vent passes, must be enclosed.
Using a level, make sure the support is
vertical. If the support extends above the
roof, cut it flush with the top of the roof.
Nail the support to the frame opening
using (8) 3" spiral nails or #8 x 1-1/2"
screws.
Note: If you are using a 6" square sup-
port you may find it difficult to
screw it in place because it is fairly
small inside.
Simpson Dura-Vent has provided angle
brackets with this support which can be
screwed to the outside of the support box
and nailed to surrounding framing as re-
quired. Use a minimum of four #8 x 1/2"
screws per bracket. In some cases these
brackets may need to be trimmed (e.g.: to
fit under a flashing). Place the Finish
Collar around the support and fasten it to
the ceiling using the screws provided.
3) Use appropriate roof flashing. Place the
flashing under the upper shingles and on
top of the lower shingles approximately
half of the flashing should be under the
shingles.
4) Assemble the desired lengths of Black Pipe
and Elbows necessary to reach from the
appliance adapter up through the support
box and flashing to proper height as per
Dia. 12, local codes or pages 12 to 13.
Ensure that all pipe and elbow connections
are in their fully twist lock position.
5) Ensure vent is vertical and secure flashing
to the roof with roofing nails. Slide the
storm collar over the pipe section and seal
with a mastic.
6) Twist lock the vent cap on to the last
section.
INSTALLATION
Diagram 11
roofline. The galvanized finish is desirable
above the roofline due to its higher corro-
sion resistance.
Continue to add pipe sections through the
flashing until the height of the vent cap
meets the minimum height requirements
specified in diagram 11 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.
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