Instruction

12
collar of the cap and twist locking it clockwise
onto the chimney. Do not hold upper portion
of the cap and twist, as this may damage the
cap. 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 5’ above the roof (Fig.18
in the Extended Roof Bracket section). If
you are located in heavy snow country, it is
recommended that a Snow Splitter be installed
(Fig.16). This will help protect the chimney by
routing snow around it.
12. Enclosures: Enclose chimneys where
they pass through occupied spaces, including
closets. Always maintain at least a 2”
clearance between the chimney and any
combustible materials. Interior enclosures
may be constructed with standard framing
and sheathed with sheetrock or plywood.
Important: Use Wall Straps every 8’ min to
maintain a minimum of 2” of air space between
the chimney and combustible materials.
OFFSET ELBOW INSTALLATION
Elbows are manufactured in 15° and 30°
angles measured from the vertical. In the
US, a 30° Elbow is the largest that can be
used in an offset. A 30° Elbow may not be
combined with a 15° Elbow to make a 45°
offset. Elbows inhibit draft, avoid their use
where possible. When Elbows are necessary
to avoid obstructions such as rafters, etc, use
no more than 2 pairs of Elbows in any one
chimney system.
TABLE 3: Offset Chart
Elbow
Angle
from
Vertical
Chimney
Length
Between
Elbows
Offset
Inches
Rise
Inches
15” 0” 2” 16 ½”
15” 6” 3 ¼” 21 ¼”
15” 12” 4 ¾” 27
15” 18” 6 ¼” 32 ¾”
15” 24” 8” 38 ½”
15” 36” 11” 50 ¼”
15” 48” 14 ¼” 61 ¾”
15” 48” + 6” 15 ½” 66 ½”
15” 48” + 12” 17” 72 ¼”
15” 48” + 18” 18 ½” 78:
15” 48” + 24” 20” 83 ¾”
30” 0” 4” 15 ¾”
30” 6” 6 ¼”
30” 12” 9 ¼” 25 ¼”
30” 18” 12 ¼” 30 ¼”
30” 24” 15 ¼” 35 ½”
30” 36” 21 ¼” 46”
30” 48” 27 ¼” 56 ¼”
30” 48” + 6” 29 ¾” 60 ½”
30” 48” + 12” 32 ¾” 65 ¾”
30” 48” + 18” 35 ¾” 71”
30” 48” + 24” 38 ¾” 76”
1. Attach Elbows: Attach Elbow to Chimney
Section or other Elbow by twisting clockwise
until they lock rmly. Attach one Elbow to the
Chimney Section below, and align it for the
offset. Elbows for DuraTech have a swivel
feature that allow for 360º rotation at their base
for ease of installation. Refer to Table 3 to
determine the required offset length and attach
an appropriate length (or lengths) of Chimney
Section(s) above the Elbow. Important:
For each chimney pipe section in the offset
Figure 16
SPLITTER