
8
EXTERIOR INSTALLATION (CONT’D)
Step 2. Wood walls: Place the exterior half of the
Wall Thimble in the opening from the outside.
Fasten in place using (4) 2” nails or 1” screws.
This Wall Thimble is adjustable from 7” to 12”.
(see Figure 9).
Make sure the insulation pad
is cut to the desired length according to the
wall thickness. Place the interior half of the
Wall Thimble inside the exterior half of the
Wall Thimble.
Using a level make sure that the hole for the
chimney to pass through is horizontal. Screw
the inner thimble in place with the provided
screws.
(see Figure 10).
NOTE:
The cavity surrounding the radiation shield
must be filled with any insulation
(see Figure
10).
3
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Step 3. The minimum length of insulated chimney
required to pass through the wall will be wall
thickness plus 7". The insulated chimney must
extend at least 5" into the room beyond the
finished wall. Insert this chimney length in
the side branch of the insulated tee. Turn it
clockwise to lock it in place. Seal this joint by
wrapping it with the aluminum tape supplied
with the tee.
Step 4: Fasten a chimney length to the top of the Tee.
Step 5: The Wall Support should be installed on the
first vertical chimney section above the Tee.
Tighten the Universal Band locking the bolt
just enough to hold the Wall Support in place.
Step 6. This step will require 2 people:
(see Figure
11).
Insert the chimney length of this tee-support
assembly into the hole in the wall. Using a
level, ensure the tee is vertical, then attach the
support to the wall using (8) Nº. 10 x 1 - 1/4"
wood screws or 4" spiral nails. Tighten the
collar nut and bolt.
NOTE:
To provide sufficient strength, the nails
must be driven into the wall studs. For concrete
walls, the support should be attached using
(8) 1/4" x 2" lag bolts.
Step 7: Attach the clean-out cap to the Tee.
Step 8. Attach the flue extension to the horizontal
chimney length.
Step 9. Stack a chimney length on top of the length.
Turn it clockwise to lock it in place. Continue
until the required chimney height is reached.
NOTE:
At 8’ intervals, attach the chimney to the wall
using a Wall Band (AWBU).
EXTERIOR
INTERIOR
Adjustable 7" to 12"
Wall Thimble
Figure 9
INSIDE
OUTSIDE
LEVEL
INSULATION
EXTERIOR WALL THIMBLE
2" NAILS
WALL STUD
1" SCREWS
INTERIOR WALL THIMBLE
Figure 10
Summary of Contents for DPC2
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