M&G DuraVent DuraTech® Canada - Manual (Page 10)

10
DTC-TS DTC-TSAC
ADJUSTABLE ADJUSTABLE
DTC-TSA
EXTERIOR INSTALLATION
4
TEE & WALL SUPPORT
Three supports are available, an adjustable with collar (DTC-TSA), an
adjustable with coupling (DTC-TSAC) and a non-adjustable with coupling
(DTC-TS).
INSTALLATION NOTES
If possible, install an interior chimney as it will provide better performance
than an exterior chimney. In areas with continuous temperatures below
-18°C (0°F), the use of an exterior chimney may result in operating
problems such as poor draft, excessive condensation of combustion
products and rapid accumulation of creosote when connected to a wood
burning appliance. If you do install an exterior chimney, we recommend
that you enclose it using an insulated enclosure.
1. The chimney may be enclosed or unenclosed. If enclosed at 2’’
clearance all around the chimney on a wood stove application, a
Premium shield must be installed around the chimney (Figure 19).
2. Maintain 2" clearance to combustible materials. Do not fill the 2" space
around the chimney with insulation or any other material.
3. A wall band must be used to secure the chimney to the wall. Maximum
distance between wall bands is 8 feet.
4. The minimum length of chimney extending past the inside wall is 5
inches.
5. The maximum length of chimney extending past the inside wall is 24
inches.
6. The distance between the stove pipe and a parallel combustible wall or
ceiling must not be less than 18". The distance between the horizontal
stove pipe and the unshielded vertical wall through which it passes
must not be less than 7 inches.
7. If an exterior installation is to be enclosed, allow for access to base
of tee to facilitate required cleaning.
8. The minimum distance between the bottom of the support and any
horizontal combustible (including the ground) is 6". This distance
can be reduced to 2 inches by using an insulated tee cap (DTC-TCI)
in conjunction with a (DTC-TSA) wall support.
9. The adjustable support (DTC-TSA) may only be installed with an
insulated tee cap (DTC-TCI) or a drain tee cap (DTC-TCD).
Figure 17 Figure 16
HOLE SIZE
CHIMNEY SIZE COMBUSTIBLE CONCRETE
5" 11-3/8’’ x 11-3/8’’ 7-3/4’’
6" 12-3/8’’ x 12-3/8’’ 8-3/4’’
7" 13-3/8’’ x 13-3/8’’ 9-3/4’’
8" 14-3/8’’ x 14-3/8’’ 10-3/4’’
10" 16-3/8’’ x 16-3/8’’ 12-3/4’’
Table 9
Wood walls: from outside, put the square wall thimble (DTC-WTI) in the
hole. Nail in place using (4) 2’’ nails or 1’’ screws. This wall thimble is
adjustable from 7’’ to 12’’. From inside, wrap the insulation pad around
the tube of the square wall thimble previously installed. Place the metal
sheet around the insulation pad and close it by joining the staples at each
end of the metal sheet together. Make sure the gap is completely filled in
from inside to outside (cut insulation pad to proper length).
WALL FRAMED OPENING
WALL STUDS
FRAME OPENING WITH LUMBER
THE SAME DIMENSION AS
WALL FRAMING
Determine where the chimney will pass through the wall.
• For concrete walls cut a hole slightly larger than the chimney.
• For combustible walls cut and frame a hole 4" larger than the chimney,
midway between the wall studs (see table below for sizing).
Normally wall studs are placed at 16" centers. With the hole midway
between them, the support will fasten to these studs and thus ensure a
strong attachment to the wall. (see Figure 17).
INSTALLATION INSTRUCTIONS STEPS
Slide the large wall shield over the small wall shield. 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 18).
Note: The cavity surrounding the wall thimble must be filled with type
R-20 insulation (see Figure 18).
Figure 18
INSIDE OUTSIDE
LEVEL
TYPE R-20
INSULATION
SMALL WALL SHIELD
2" NAILS
WALL STUD
1" SCREWS
LARGE WALL SHIELD