12
where it is exposed to the weather.
(Figures
12 and 13)
. Slide the Storm Collar down
over the chimney to the top of the Flashing.
Tighten the bolts of the Storm Collar and seal
the Storm Collar against the sealant. After
installing sufficient Chimney Sections to meet
the height requirement as shown in
Figure
1
, attach the Chimney Cap onto the top of
the chimney by setting the female end of the
Cap onto the male end of the last chimney
section. Secure the Cap by using (6) sheet
metal screws provided. Do not push down
from the top portion of the cap as this may
damage the cap. Push from the lower section
of the Cap if needed. The Chimney Cap can
be removed for chimney cleaning as described
in the Chimney Maintenance section of the
instructions. Use an Extended Roof Bracket if
the chimney extends more than 4 feet above
the roof.
(Figures 16 & 17 in the Extended
Roof Bracket section)
.
If you are located in heavy snow country, a
“snow splitter” should be used to protect the
chimney by routing snow around the pipe.
DuraVent offers a Snow Splitter or one can
be fabricated locally from heavy gauge sheet
metal.
(Fig 14)
12. Enclosures:
Enclose chimneys where
they pass through occupied spaces, including
closets. Always maintain at least a 2 inch
clearance between the chimney and any
combustible materials. Interior enclosures
may be constructed with standard framing
and sheathed with sheetrock or plywood. Use
Wall Straps at least every 4 feet to maintain a
minimum of 2 inches of air space between the
chimney and combustible materials.
Figure 14
T
Table 3
Elbow Offset Chart
ELBOW
ANGLE FROM
VERTICAL
CHIMNEY
LENGTH
BETWEEN
ELBOWS
OFFSET
INCHES
RISE INCHES
30 '
0"
6 5/8"
25 1/2"
30 '
12"
12 7/16"
35 1/2"
30 '
18"
15 7/16"
40 3/4"
30 '
24"
18 7/16"
45 15/16"
30 '
36"
24 1/2"
56 1/4"
SPLITTER
SPLITTER
TOP VIEW
Figure 13
SEAL EXPOSED SEAM
WITH
NON-HARDENING HIGH-
TEMP
SILICONE SEALANT
PUSH COLLAR
DOWN
TO FLASHING AND
SEAL WITH
NONHARDENING
HIGHTEMP
SILICONE
SEALANT
