M&G DuraVent DuraTech® Canada - Manual (Page 3)

3
CHIMNEY OPERATION AND MAINTENANCE
KEEP YOUR CHIMNEY CLEAN SIZING CHART
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 5” 6” 7” 8” 10”
OUTSIDE-DIAMETER 7” 8” 9” 10” 12”
HOLE-DIMENSION-REQUIRED
Base-support (DTC-BS) 12-1/8” 12-1/8” 14-3/8” 14-3/8” --
Cathedral support (DTC-RCSC) -- 12-1/8” 14-3/8” 14-3/8” --
Square support (DTC-CS) -- 12-1/8” 14-3/8” 14-3/8” 14-3/8”
Finish support (DTC-FSC) -- 12-1/8” 14-3/8” 14-3/8” --
Firestop (DTC-FS) 11-3/8” 12-3/8” 13-3/8” 14-3/8” 16-3/8”
MAX. LENGTH HEIGHT SUPPORTED **
Base support (DTC-BS) -- 32’ 32’ 32’ 32’
Tee support (DTC-TS) 63’ 63’ 55’ 48’ 39’
Roof support (DTC-RS) 42’ 34’ 27’ 24’ 20’
Radiation Shield Connector
Support (DTC-FRSCS)
-- 30' 24’ 21’ --
Cathedral support (DTC-RCSC) -- 75’ 65’ 59’ --
Square support (DTC-CS) -- 60’ 50’ 45’ 35’
Adj. square support
(DTC-CSAS)
27’ 22’ -- -- --
Finish support (DTC-FSC) -- 75’ 65’ 59’ --
Offset support (DTC-RESU) -- 28’ 24’ 20’ 14’
Insulated tee (DTC-TSS) * 63’ 63’ 55’ 50’ 50’
CLEARANCE TO
COMBUSTIBLES
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’
CHIMNEY
SIZE
5” 6” 7” 8” 10”
ROOF
SLOPE
HOLE SIZE
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
Table 3 - Refer to Figure 1
HOLE SIZE
DOWN
B
ROOF SLOPE
INCHES
SIDES OF HOLE MUST
BE VERTICAL
12 IN
X
ACROSS
SLOPE
A
Figure 1