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PRODUCT INSPECTION
Chimney components are shipped on individually marked skids. Compare the labeled
skids to the packing list to ensure all components of the chimney system have been
shipped. For missing components contact Duravent's Customer Service department at
800-667-3387 (Canada) or 800-361-4909 (USA).
FREIGHT DAMAGE
Each component should be checked for freight damage when it is unloaded at the site.
For damaged components contact the shipping company as soon as possible to file a
claim.
PROPER STORAGE
All chimney components should be stored in a dry place until installed.
Sealant shall be stored in location where it will not freeze.
PRODUCT WEIGHTS
The average weight of the duct, per foot of length, can be estimated using the following
formula:
DCL:
0.40 x diameter in inches = lbs per foot
DAS1:
0.79 x diameter in inches = lbs per foot
DIS1:
0.93 x diameter in inches = lbs per foot
DIS2:
1.09 x diameter in inches = lbs per foot
DIS4:
1.44 x diameter in inches = lbs per foot
Chimney design should provide adequate support to ensure components are not
overloaded.
THERMAL EXPANSION CALCULATIONS
Thermal expansion under normal operating temperatures can fatigue welds and joints
causing leakage. To calculate the thermal expansion, use the following formula:
[Length (ft) / 100] x [Temperature Rise degrees F / 100]
Example: [50' / 100] x [75°F / 100] = 0.375" Expansion
If the computed expansions between the fixed points is greater than 0.375" Security
recommends an adjustable or bellow length be installed.
SUPPORT METHODS AND HEIGHT LIMITS
1. Several support and guiding methods are used to anchor a chimney against upward,
downward and angular displacement.
2. These supports and guides used with thermal expansion devices, prevent bending
stresses on the chimney elbows and joints.
3. Supports and guiding methods and installation are described in SECTION
E-SUPPORTS. Certain limitations apply for proper installation of supports and
guides. See Tables 3, 4, 5 and Figures 3 and 4.
4. It is recommended to apply an exterior grade high heat paint to any plate supports,
full/half angle rings, wall supports/guides, aluminized outer maximum corrosion
protection against the elements. (Ex: Rustoleum V200 series High Heat Industrial
Aerosol)
NOTE: All the weight of the section must be supported by the inner flue. Never
support any chimney pipe from the outer casing.
5
TABLE 3 -
Anchor Plate
Anchor Plate with
Base supported Tee
Wall Support
WARNING:
Dimensions are in inches (diameter) and feet (distance)
TABLE 4 - Maximum Vertical Spacing between any Guides /
Model
Flue
Diameter
Ø (in)
* MVS = Maximum Vertical Spacing between two guides or support and
** H = Maximum Freestanding Heigth above the roof. This limited heigth
Dimensions are in inches (diameter) and feet (distance)
TABLE 5 -
Half Angle Ring (HAR) /
Full Angle Ring (FAR) /
Anchor Support (AP) /
Heavy Duty Wall Guide
NOTE: The Half Angle Ring (HAR) and Full Angle Ring (FAR) used in horizontal
installation must be installed with threaded rods having a minimum of Ø1/2" or with
structural steel provided by others.
Dimensions are in inches (diameter) and feet (distance)
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Height Limits for each Type of Support
Flue Diameter
Parts
Ø (in)
DCL
Ø5 to Ø22
264
(AP)
Ø24 to Ø36
161
Ø5 to Ø22
281
Length (APL)
Ø24 to Ø36
172
Ø5 to Ø22
102
(T90 or T45)
Ø24 to Ø36
63
Ø5 to Ø22
105
(WSHD)
Ø24 to Ø36
64
Do not attached any supports to combustible constructions.
Supports and Maximum Freestanding above the Roof
DCL
DAS1 / DIS1
Heigth (ft)
Heigth (ft)
MVS*
H**
MVS*
H**
5
20'
8' 6"
20'
7' 3"
6
20'
9' 6"
20'
8' 3"
7
20'
10'
20'
8' 9"
8
20'
10' 9"
20'
9'
9
20'
11' 6"
20'
9' 3"
10
20'
12'
20'
9' 6"
11
20'
12' 6"
20'
9' 9"
12
20'
13'
20'
10'
13
20'
13' 6"
20'
10' 3"
14
20'
14'
20'
10' 6"
16
20'
14' 6"
20'
11'
18
20'
15'
20'
11' 6"
20
20'
15'
20'
12'
22
20'
15'
20'
12' 3"
24
20'
15'
20'
12' 9"
26
20'
15'
20'
13'
28
20'
15'
20'
13' 6"
30
20'
15'
20'
13' 9"
32
20'
15'
20'
14' 3"
34
20'
15'
20'
14' 6"
36
20'
15'
20'
15'
38
20'
15'
20'
14' 9"
40
20'
15'
20'
14' 9"
42
20'
15'
20'
14' 9"
44
20'
15'
20'
14' 6"
46
20'
15'
20'
14' 6"
48
20'
15'
20'
14' 6"
guide in a vertical position.
is due to wind loads.
Maximum Horizontal Spacing (MHS) between each Guides/Supports
Flue
Product
Diameter Ø
DCL
Ø5 to Ø12
23
Anchor plate with
Ø14 to Ø24
19
Length (APL) /
Ø26 to Ø36
15
(HDWG)
Height (ft)
DAS1
DIS1
DIS2
DIS4
133
114
97
73
82
70
59
45
142
121
103
78
87
74
63
48
52
44
37
28
32
27
23
17
53
45
39
29
32
28
24
18
DIS2
DIS4
Heigth (ft)
Heigth (ft)
MVS*
H**
MVS*
H**
20'
6' 6"
20'
5' 9"
20'
7' 6"
20'
6' 9"
20'
8' 3"
20'
7'
20'
8' 6"
20'
7' 3"
20'
8' 9"
20'
7' 6"
20'
9'
20'
7' 9"
20'
9' 3"
20'
8'
20'
9' 6"
20'
8' 3"
20'
9' 9"
20'
8' 6"
20'
10'
20'
9'
20'
10' 6"
20'
9' 6"
20'
11'
20'
10'
20'
11' 6"
20'
10' 9"
20'
11' 9"
20'
11'
20'
12' 3"
20'
11' 6"
20'
12' 6"
20'
12'
20'
13'
20'
12' 3"
20'
13' 6"
20'
12' 9"
20'
13' 9"
20'
13' 3"
20'
14' 3"
20'
13' 6"
20'
14' 6"
20'
13' 9"
20'
14' 6"
20'
13' 9"
20'
14' 3"
20'
13' 9"
20'
14' 3"
20'
13' 9"
20'
14' 3"
20'
13' 9"
20'
14' 3"
20'
13' 9"
20'
14' 3"
20'
13' 9"
Distance (ft)
DAS1
DIS1
DIS2
DIS4
23
19
16
12
19
16
14
10
15
13
11
8
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