M&G DuraVent DuraTech® Canada - Manual (Page 5)

5
INTERIOR STRAIGHT INSTALLATION WITH MULTIPLE FLOOR
Figure 3
Figure 4
Locate the chimney in a convenient place as near as possible to the
appliance outlet.
Cut and frame the holes in the floor, ceiling and roof where the chimney
will pass.
Note: It is important to follow the opening dimensions for the floor
openings prescribed in this manual. This way, the holes left by the
folded positioning tab of the firestop (DTC-FS or DTC-ISI) will be
blocked by the ceiling.
HOLE SIZE
CHIMNEY
SIZE
FINISH SUPPORT
(DTC-FSC) or (DTC-BS)
RADIATION SHIELD*
& ROOF
5" 12-1/8" x 12-1/8" 11-3/8" x 11-3/8"
6" 12-1/8" x 12-1/8" 12-3/8’’ x 12-3/8’’
7" 14-3/8" x 14-3/8" 13-3/8’’ x 13-3/8’’
8" 14-3/8" x 14-3/8" 14-3/8’’ x 14-3/8’’
10" --- 16-3/8’’ x 16-3/8’’
Table 7 * For sloping roofs see size table 3 on page 3
FINISH SUPPORT (DTC-FSC) or (DTC-BS)
NAILS
1. BLACK STOVE PIPE
2. FINISHING SUPPORT
3. INSULATED LENGTH
4. PREMIUM SHIELD (TRS OR FS)
5. RADIATION SHIELD FIRESTOP
6. RADIATION SHIELD CONNECTOR
7. STORM COLLAR
8. ADJUSTABLE ROOM FLASHING
9. DELUXE RAIN CAP
From below push the finish support into the framed hole. Nail the support
to the framed box using (12) - 3" spiral nails (see figure 3).
If you are venting a Factory built fireplace or an oil or gas burning
appliance please refer to installation notes #2 (on page 4) for guidelines
on the use of the shields.
FOR UNENCLOSED INSTALLATION OR VENTING OF OIL
OR GAS APPLIANCES:
Refer to interior installation on a furnace and water heater guideline
(page 12).
FOR ENCLOSED INSTALLATION (6’’,7’’,8’’ dia. only)
(woodstove or coal burning appliance):
- Lock the first chimney length into the support with the male coupling
on top.
- Slide a Telescopic Rigid shield (DTC-TRS) on top of that length all the
way to the bottom.
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 1/2 in stainless
steel self tapping screw to prevent accidental unlocking.
Continue installing until the required chimney reached the attic level.
- At the ceiling level, install a Radiation Shield Connector (DTC-RSCI)
and a Radiation Shield Firestop (DTC-FRSC) (Figure 5)to the chimney.
Slide the Radiation Shield Connector down until the bottom of the insulated
tube passes just through the Radiation Shield Firestop as shown in Figure 4.
Adjust the height until a minimum of (1”) of the Radiation Shield Connector
passes throught the firestop below.
Once you are satisfied with positioning of the Radiation Shield Connector,
passes throught the firestop below. Fix it to the chimney from the attic
side using 3 self-tapping screws.
The Telescopic Shield is then slid upwards to the ceiling and attached to
the bottom of the Radiation Shield Connector using 3 self-tapping screws.
In the attic:
• If the chimney is not enclosed in the attic, a storm collar (DTC-SC) must
be installed on top of radiation Shield to prevent any loose insulation
from falling in the area between the chimney and the support.
• If the chimney is to be enclosed within the attic, continue installed
chimney sections up through the roof opening.Lower another Telescopic
8
5
4
3
2
1
7
6
9
Shield through the roof opening down onto the Radiation Shield
Connector.Adjust the height of the shield`s tube so it terminates just
above the roof opening but under the flashing.Once satisfied with
positioning, secure both ends of the shield using self-tapping screws.
ROOF FLASHING INSTALLATION
Put the roof flashing in place. Seal the joint between the roof and the
flashing with roofing pitch.
For sloping roofs, place the flashing under the upper shingles and on
top of the lower shingles.
Nail the flashing to the roof using roofing nails.
Place the storm collar over the chimney and the flashing. Tighten it with
the bolt supplied making sure the joint is properly caulked (see figure 6).
Fit the rain cap to the top of the chimney. Turn it clockwise to lock it in place.