M&G DuraVent DuraTech Canada User Manual
DURATECH CANADA (DTC)
5”, 6”, 7”, 8” & 10” dia.
SUMMARY
Factory-built CHIMNEY
TYPE HT
OUR PRODUCTS LIVE UP TO OUR NAME, WARNING. . . . . . . . . . . . . . . 2
KEEP YOUR CHIMNEY CLEAN, SIZING CHART . . . . . . . . . . . . . . . . . . . 3
GENERAL INSTALLATION NOTES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INTERIOR STRAIGHT INSTALLATION WITH MULTIPLE FLOORS . . . . . . . 5
INTERIOR INSTALLATION WITH CATHEDRAL CEILING . . . . . . . . . . . . . . 7
OFFSET INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9
EXTERIOR INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-11
INTERIOR INSTALLATION ON A FURNACE & WATER HEATER . . . . . . . . 12
SPECIALIZED COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
WARRANTY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
INSTALLATION
AND
OPERATION
INSTRUCTIONS
Read these instructions and keep them for future reference
Listed: CAN/ULC-S629 (6’’,7’’,8’’ only)
CAN /ULC-S604
UL-103HT
Duravent
www.duravent.com
PIDURATECH REV. 3 21/2014
1
OUR PRODUCTS LIVE UP TO OUR NAME
CONGRATULATIONS!
You have just purchased one of the safest chimneys
in North America. Designed with care, using the latest
technology, it has been manufactured in accordance
with ISO International Standards of Quality. The
chimney is easy to install and all parts of the system
are built to fit perfectly with each other. If you’re
handy, know how to use a few simple tools and have
some basic carpentry skills, you can install your
DURATECH CANADA (DTC) chimney yourself over one
weekend. Or you can hire a professional to do the job.
BURNING SMART
How you burn wood in your stove or fireplace directly affects the
formation of creosote. Smaller, hotter fires are better than large,
smouldering ones. Fast, effective start ups are important, as is the
moisture content of the wood. Ideally, you should use seasoned
wood with a moisture content of 20 25%. A surface thermometer is
an excellent investment. Properly seasoned wood can produce 8,600
BTUs per pound.
APPLICATIONS
WOOD AND COAL STOVES
DURATECH CANADA (DTC) chimney has been designed for use with wood,
gas, oil and coal in residential, commercial and industrial applications.
WARNING
A MAJOR CAUSE OF CHIMNEY-RELATED FIRES IS FAILURE TO MAINTAIN
REQUIRED CLEARANCES (AIR SPACES) TO COMBUSTIBLE MATERIALS.
IT IS OF UTMOST IMPORTANCE THAT THIS CHIMNEY BE INSTALLED
ONLY IN ACCORDANCE WITH THESE INSTRUCTIONS.
RECOMMENDATIONS
Clearance
The clearances stated in this guide are minimum requirements: if more
space is available, use it. Minimum clearances mean leaving unobstructed
air space. Do not fill these spaces with any material whatsoever, especially
not insulating material. If you insulate your attic later, be sure to maintain
the necessary clearance.
Inspection
Contact local building or fire officials about restrictions, installation
inspection and permit that may be required in your area.
Replacement Parts
If a component of your chimney system is damaged it must be replaced
by an identical one from Duravent.
NOT ALL WOOD IS CREATED EQUAL
Some types of wood have greater energy potential than others. Some
logs will give you a hot, crackling fire, others will burn longer and more
evenly. Choose the type of flame you prefer. The following table shows
how different types of wood burn.
Wood
Type
Black Locust Excellent Very Few Slight Excellent
Maple Excellent Few Good Excellent
Oak Excellent Few Fair Excellent
Hickory Excellent Moderate Slight Excellent
Beech Good Few Slight Excellent
Cherry Excellent Few Excellent Good
Apple Excellent Few Excellent Good
Elm Good Very Few Fair Good
Ash Good Few Slight Good
Birch Good Moderate Slight Good
Hemlock Low Many Good Fair
Pine Poor Moderate Good Fair
Cedar Poor Many Good Fair
Ability To Create
Long Lasting Coals
Sparks Fragrance Heating
Qualities
Table 1
2
DURATECH CANADA (DTC) has been listed to ULC-S629 , 2100 F in
diameter 6,7 and 8 inches for wood/coal application . Note that for
interior enclosed installation, premium shield are required around
the chimney. Refer to specific Canadian installation section for proper
installation.
DURATECH CANADA (DTC) is also designed for use with gas or oil
fired heating appliances such as furnace, hot water heaters and other
appliances, as per ULC-S604 standards in diameter 5 to 10 inches.
In these types of installations, no premium shields are required even
where the chimney is enclosed.
If you are planning to install a wood stove, we recommend that you:
1. Choose a stove that bears the label of a testing laboratory (such as
UL, CSA, WH, ULC or ICBO).
2. Choose the right size stove. Do not buy one larger than you need.
3. Connect only one appliance to a chimney.
4. Never overfire your stove. If any part of the stove or stove pipe is
glowing red, then you are overfiring. Immediately close the stove’s
dampers until the system cools. The high temperature caused by
overfiring can permanently damage the stove and stove pipe and may
overheat nearby combustible walls and furniture.
5. Install the stove and stove pipe as described in the installation
instructions accompanying the stove. Be certain to maintain the
required clearances to combustible construction.
6. Keep your flue gases between 300°F and 500°F. This will maximize
efficiency while minimizing condensation and creosote formation. Do
not fill your stove with wood and allow it to smoulder for 8 to 10 hours.
This condition produces large amounts of creosote in the chimney.
7. Do not burn sea driftwood or treated wood. These combustibles are
highly corrosive to all types of stainless steel.
FACTORY BUILT FIREPLACE
DURATECH CANADA (DTC) in Canada is also suitable for use with closed
or opened certified fireplaces.
Note that the premium shields are normally not required for factorybuilt fireplace installation, including interior chase.
When doing so please refer to the fireplace installation instructions to
install the chimney.
KEEP YOUR CHIMNEY CLEAN SIZING CHART
CHIMNEY OPERATION AND MAINTENANCE
Wood stoves can quickly create large deposits of creosote in the chimney.
Some wood stoves can create enough creosote in two weeks to cause
a chimney fire. When using a wood stove, we recommend that you:
1. Initially inspect the chimney system weekly. From this, you will learn
how often it will be necessary to clean your chimney.
2. The chimney should be inspected at least once every 2 months during
the heating season to determine if a creosote or soot build-up has
occurred: if creosote or soot has accumulated, it should be removed
to reduce the risk of chimney fire.
3. Have your chimney cleaned by a qualified chimney sweep. If you want
to clean your chimney yourself: clean your chimney using plastic,
wood or stainless steel brushes. Do not use a brush that will scratch
the stainless steel interior of your chimney.
4. Do not expect chemical chimney cleaners to keep your chimney clean.
Their use does not negate the necessity of periodically inspecting and
cleaning your chimney.
CHIMNEY FIRES
If you are having a chimney fire, follow these steps:
1. Close all heater doors and combustion air controls. For fireplaces,
block the fireplace opening with a non-combustible material (such as
a steel sheet).
2. Alert your family to the possible danger.
3. If you require assistance, alert your fire department.
4. If possible, use a dry chemical fire extinguisher, baking soda or sand
to control the fire. Do not use water as it may cause a dangerous
steam explosion.
5. Watch for smouldering or fire on combustibles next to the stove,
stove pipe and chimney. Check outside to ensure that sparks and
hot embers coming out of the chimney are not igniting the roof.
6. Do not use the stove again until your chimney and stove pipe have been
inspected by a qualified chimney sweep or Fire Department Inspector.
DURATECH DTC chimney has been designed to withstand the intense
heat of a chimney fire. Nevertheless chimney fires are dangerous
and should be prevented.
BEFORE HIRING A CHIMNEY SWEEP
1. Does the company or individual have adequate liability insurance
in case of damage?
2. How long has the company been in business?
3. Does the company offer current references?
4. Is the company involved in any unresolved disputes?
CHIMNEY-SIZE
OUTSIDE-DIAMETER
HOLE-DIMENSION-REQUIRED
Base-support (DTC-BS)
Cathedral support (DTC-RCSC)
Square support (DTC-CS)
Finish support (DTC-FSC)
Firestop (DTC-FS)
MAX. LENGTH HEIGHT SUPPORTED **
Base support (DTC-BS)
Tee support (DTC-TS)
Roof support (DTC-RS)
Radiation Shield Connector
Support (DTC-FRSCS)
Cathedral support (DTC-RCSC)
Square support (DTC-CS)
Adj. square support
(DTC-CSAS)
Finish support (DTC-FSC)
Offset support (DTC-RESU)
Insulated tee (DTC-TSS) *
CLEARANCE TO
COMBUSTIBLES
5” 6” 7” 8” 10”
7” 8” 9” 10” 12”
12-1/8” 12-1/8” 14-3/8” 14-3/8” --
-- 12-1/8” 14-3/8” 14-3/8” --
-- 12-1/8” 14-3/8” 14-3/8” 14-3/8”
-- 12-1/8” 14-3/8” 14-3/8” --
11-3/8” 12-3/8” 13-3/8” 14-3/8” 16-3/8”
-- 32’ 32’ 32’ 32’
63’ 63’ 55’ 48’ 39’
42’ 34’ 27’ 24’ 20’
-- 30' 24’ 21’ --
-- 75’ 65’ 59’ --
-- 60’ 50’ 45’ 35’
27’ 22’ -- -- --
-- 75’ 65’ 59’ --
-- 28’ 24’ 20’ 14’
63’ 63’ 55’ 50’ 50’
2” 2” 2” 2” 2”
Table 2
* When installed on a concrete footing.
** NOTE: If greater height is required, use additional roof supports at
intervals not exceeding 30’
SIDES OF HOLE MUST
BE VERTICAL
HOLE SIZE
DOWN
B
ACROSS
SLOPE
A
12 IN
ROOF SLOPE
INCHES
X
Figure 1
CHIMNEY
SIZE
ROOF
SLOPE
x/12 A B A B A B A B A B
0 11-3/8 11-3/8 12-3/8 12-3/8 13-3/8 13-3/8 14-3/8 14-3/8 16-3/8 16-3/8
2/12 11-3/8 11-1/2 12-3/8 12-1/2 13-3/8 13-1/2 14-3/8 14-9/16 16-3/8 16-19/32
4/12 11-3/8 12 12-3/8 13 13-3/8 14-3/32 14-3/8 15-5/32 16-3/8 17-1/4
6/12 11-3/8 12-11/16 12-3/8 13-13/16 13-3/8 14-15/16 14-3/8 16-3/32 16-3/8 18-5/16
8/12 11-3/8 13-11/16 12-3/8 14-7/8 13-3/8 16-1/16 14-3/8 17-1/4 16-3/8 19-11/16
10/12 11-3/8 14-13/16 12-3/8 16-1/8 13-3/8 17-7/16 14-3/8 18-23/32 16-3/8 21-5/16
12/12 11-3/8 16-1/16 12-3/8 17-1/2 13-3/8 18-29/32 14-3/8 20-11/32 16-3/8 23-5/32
5” 6” 7” 8” 10”
HOLE SIZE
Table 3 - Refer to Figure 1
3
1
GENERAL INSTALLATION NOTES
INSTALLATION NOTES
1. The chimney is intended for use with solid (6’’,7’’,8’’ dia. only) or
liquid and gaseous fuel burning appliances.(all diameters)
Allowable flue gas temperature:
Maximum continuous 540°C (1000°F)
Brief forced firing 760°C (1400°F)
Tested to 1150°C (2100°F) - 30 minutes
2. On wood or coal stove application and in area where the chimney
is completely enclosed, it is required to install Premium shields
(telescopic of flexible) around the chimney and a Radiation shield
connector at the ceiling level.
For venting of gas or oil burning appliances Premium shields are
not required even where the chimney is enclosed.
For factory-built wood burning fireplaces, Premium shields
are usually not required, please follow fireplace installation
instruction.
3. The maximum height of chimney supported by the various supports
are outlined on page 3.
4. The supports described in this booklet should only be used with
Duravent model DURATECH CANADA (DTC), 5", 6", 7", 8" and 10"
factory built chimneys.
5. Size the chimney in accordance with the appliance manufacturer's
instructions.
6. When a firestop (DTC-FS , DTC-ISI or DTC-RSCI) needs to be
installed, 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 will be blocked by the
ceiling.
7. A chimney servicing a fireplace or an incinerator shall not serve any
other appliance.
8. The chimney shall extend at least 3 ft above its point of contact
with the roof and at least 2 ft higher than any wall, roof or adjacent
building within 10 ft of it.
9. The maximum height of unguided chimney above the roof is 5 ft.
10. The clearance between single wall pipe and unprotected combustible
material must not be less than 18" (see national building code and
NFPA 211) except: The distance between the vertical stove pipe and
the ceiling may be less than 18" and will be established by the finish
support.
11. Portions of the chimney which may extend through accessible
spaces shall be enclosed in all cases to avoid personal contact
with the chimney and damage to the chimney. When doing so on
woodstove or coal application, a telescopic or flexible Premium
shield must be installed (see Figure 2). Except for installation in
single and two-story family dwellings, the enclosure must have a
fire resistance rating equal to or greater than that of the floor or
roof assemblies through which they pass.
12. Do not fill the 2" space around the chimney with insulation or any
other material. Insulation placed in this area could cause adjacent
combustibles to overheat.
13. Self tapping screws are not required, but may be used to reinforce
the connection and avoid accidental unlocking of chimney lengths.
WARNING
2 ft
MIN.
10 ft
2" MIN.
RADIATION
SHIELD
CONNECTOR
(DTC-RSCI)
RADIATION
SHIELD
FIRESTOP
(DTC-FRSC)
SWIVEL
ADAPTOR
OPTIONAL
(DTC-SA)
PREMIUM SHIELD
(DTC-TRS or DTC-FLXS)
BASE TEE
* 18"
MINIMUM
* THE DISTANCE CAN BE REDUCED IF A
LISTED STOVE PIPE IS USED.
Figure 2
3 ft
MIN.
STORM
COLLAR
(DTC-SC)
ENCLOSURE
2" MIN.
SUPPORT
(DTC-FSC
OR DTC-BS)
7 1/2"
MIN.
* 18"
MINIMUM
The clearance between the chimney and combustible
material must not be less than 2", except where
established by the support. Do not fill this area with
insulation.
4
INTERIOR STRAIGHT INSTALLATION WITH MULTIPLE FLOOR
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
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’’
FINISH SUPPORT
(DTC-FSC) or (DTC-BS)
RADIATION SHIELD*
& ROOF
Table 7 * For sloping roofs see size table 3 on page 3
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.
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.
FINISH SUPPORT (DTC-FSC) or (DTC-BS)
NAILS
Figure 3
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
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
Figure 4
9
8
7
6
5
4
3
2
1
5
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