Guide

Attic Oset
FireplaceOil Furnace
7
4
10
9
2
7
6
8
5
1
4
Attic Oset
18
4
2
7
6
8
5
14
19
Oil Furnace
18
4
4
7
13
8
15
Fireplace
New or retrot
Typical Installations
DuraTech®
1 DVL or DuraBlack
2 Ceiling Support
3 Wall Thimble
4 Chimney Pipe
5 Attic Insulation Shield
6 Flashing
7 Storm Collar
8 Chimney Cap
9 Elbow
10 Elbow Strap
11 Tee with Tee Cap
12 Tee Support
13 Chase Top Flashing
14 Base Tee/Double Tee
15
Anchor Plate or Anchor Plate
with Damper
16 Roof Support
17 Finishing Collar
18
DVL Adapter, DuraBlack Slip
Connector, or Snap-Lock Adapter
19 DVL Adapter
(w/ or w/o damper)
• DVL/DuraBlack Chimney Adapter
must be used when connecting DVL
pipe to a Ceiling Support Box or
Finishing Collar. When connecting
DuraBlack pipe, a DVL/DuraBlack
Chimney Adapter, DuraBlack Slip
Connector, or Snap-Lock Adapter
must be used.
• Wall Thimble must be installed
with an appropriate length of
chimney pipe for all horizontal
through-the-wall installations.
To accommodate thicker walls,
the telescoping pieces of the Wall
Thimble can be separated, and a
eld-fabricated extension may be
installed.
• Attic Insulation Shield must be
used in all installations that pass
through an attic, regardless of
whether the attic is insulated or
not.
• Firestop Radiation Shield must
be used when a chimney passes
through a oor or ceiling without a
support box.
Through-the-Wall Cathedral Ceiling
4
12
7
13
11
8
3
17
18
1
Through-The-Wall
Cathedral Ceiling
6
4
7
16
8
17
1
19
1. Drop a plumb line to center of stove ue collar. Mark
center point on ceiling. Refer to installation instructions
for framing dimensions.
2. Slide the chimney support box into the framed
opening from below, and level it. At least 2” of the box
should extend below nished ceiling.
3. Nail the chimney support box to the framed opening
from above. Use at least two 8 penny nails on each side.
4. Screw the support box trim to the ceiling. 5. Lower the rst chimney section over short piece of
pipe in the bottom of the support box. Push together
and twist to lock.
6. Slip insulation shield over chimney until base sits
squarely on framed opening or nests in the support box.
Nail to opening or screw to box.
7. Wrap insulation shield collar around chimney. Slide it
down to the shield
.
8. Drop a plumb line from roof to center of chimney.
This establishes the center point for cutting a round
hole through the roof.
9. Hole in roof must provide at least a 2” clearance all
around the chimney. Add more chimney sections and
twist to lock.
10. Complete the chimney installation above the roof
by adding more chimney sections. Make sure the
chimney is plumb.
11. Slip the ashing over the roof hole so the top
edge is under the shingles above. Nail the ashing to
the roof across the top and down 1/2 each side. Seal
ashing and nailheads with weatherizing sealant.
12. Add more chimney sections until chimney is at least
3 ft above roof, and at least 2 ft above any part of your
house within 10 ft.
14. If the chimney extends 5’ or more above the roof
penetration an Extended Roof Bracket is needed.
13. Slip storm collar around chimney and slide down.
Apply high temperature silicone sealant where storm
collar will meet chimney.
15. Press chimney cap into the last section of pipe. To
clean remove the (4) screws and brush the inner sleeve.
DuraTech
®
Chimney Installation
The following is a brief overview of a typical installation.
Detailed installation instructions can be found at www.duravent.com.
Cathedral Ceiling
With Support Box
Cathedral Ceiling
w/Support Box
18
1
6
8
4
7
2