M&G DuraVent DuraTech® Canada - Manual (Page 11)

11
EXTERIOR INSTALLATION (CONT’D)
Attach the flue extension to the horizontal chimney length using the three
metal screws provided.
Stack a chimney length on top of the tee. Turn it clockwise to lock it in place.
FOR UNENCLOSED INSTALLATION OR VENTING OF OIL
OR GAS APPLIANCES:
Continue until the required chimney height is reached.
NOTE: At 8' intervals, attach the chimney to the wall using a wall band
(DTC-WSU).
If the chimney passes through the roof, cut a hole large enough to
provide 2" clearance between the chimney and the roof. For pitch roof,
see table 3 on page 3.
FOR ENCLOSED INSTALLATION AT 2" FROM COMBUSTIBLES
(Woodstove or coal burning appliance only):
Put a first chimney length on the Tee. Turn it clockwise to lock it in place
(see figure 4).
Note: the male coupling must be on top.
Slide a Radiation Shield Connector on that first chimney section and
fasten it using 3 self tapping metal screws.
Stack the next chimney length on the first length. Be sure that the male
and female threads are not in line when putting the lengths together. Turn
the chimney clockwise to lock it in place. You may add a 1/2in stainless
steel self tapping screw to prevent accidental unlocking.
Slide a telescopic rigid shield over that section and attach it to the radiation
shield connector.
Continue installing chimney sections up through the roof opening. Pull
the telescopic shield tube up to the roof opening Adjust the length of the
shield tube so that it terminates just above the roof opening but under the
flashing. Screw the sections of the shield together using 3 self tapping
screws per joint.
TO CONTINUE, SEE ROOF FLASHING INSTALLATION, ON PAGE 5.
Attach the clean-out cap to the support's flue extension using the
three metal screws provided. Make sure that the screws have pierced
through the flue extension. The cap is in the box with the insulated tee. If
an insulated tee cap is used, twist lock the tee cap to the tee (adjustable
support DTC-TSA only).
The minimum length of insulated chimney required to pass through the
wall will be 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 entry of the insulated tee. Turn it clockwise to lock it in place.
Seal this joint by wrapping it with the aluminium tape supplied with the
tee.Mount the insulated tee on the support so that the chimney length
which will go through the wall is perpendicular to the side of the support
that will fasten to the wall.
This step will require 2 people: (See figure 20)
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.
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.
4
Figure 19
1. CAP
2. WALL THIMBLE
3. INSULATED TEE
4. INSULATED LENGTH
5. TEE SUPPORT
6. FLUE EXTENSION
7. PREMIUM SHIELD
8. RADIATION SHIELD FIRESTOP
9. RADIATION SHIELD CONNECTOR
10. STORM COLLAR
11. RAIN CAP
12. CENTERING SPRING
9
3
6
4
2
5
1
7
8
10
11
12
Figure 20
5" Min.
WALL THIMBLE
(DTC-WTI)
WALL STUD
FLUE EXTENSION
(DTC-AD)
4 in. Nails or #10 x 1-1/4 in. Screws
LEVEL
4 in. Nails or
#10 x 1-1/4 in. Screws
INSULATED
CHIMNEY
(DTC-_SS)
TEE SUPPORT OR ADJUSTABLE TEE SUPPORT
(DTC-TS OR DTC-TSAC) AND INSULATED TEE CAP
(DTC-TCSS) OR ADJUSTABLE WALL SUPPORT
(DTC-TSA) AND INSULATED TWIST-LOCK CAP
(DTC-TCI) OR DRAIN TEE CAP (DTC-TCD)