Pyramid style shroud, 7pyramid style shroud minimum dimensions – DuraVent DuraTech Shroud User Manual
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7
Pyramid Style Shroud
Minimum Dimensions
Chimney
Diameter
(inches)
Min
Height
H 1 (inches)
Min
Length
L (inches)
Min
Width
W (inches)
Min
Base
B (inches)
Min
Height
H 2 (inches)
5
17
13
13
7
1.0
6
17
13
13
7
1.0
7
17
17
17
11
1.0
8
17
17
17
11
1.0
10
22
24
24
18
1.5
12
23
24
24
18
2.0
14
24.5
28
28
22
2.0
16
25
28
28
22
2.5
18
30
35
35
24
3.0
20
30
35
35
24
3.0
22
30
39
39
24
4.0
24
30
39
39
24
4.0
Figure 4
Table 3: Pyramid Style Shroud Minimum Dimensions
Shaded area represents screened Open Area. Actual shape
of Shroud may vary as long as minimum dimensions and
minimum Open Area requirements are met.
L: Minimum length of Shroud top opening
W: Minimum width of Shroud top opening
H1: Minimum total height of Shroud
B: Minimum length of opening along base
H2: Minimum height of opening along base
H2
W
B
H1
L
PYRAMID STYLE SHROUD
The Pyramid style shroud is roughly square
or rectangular with an open top for exhaust as
well as openings along the base of the four
(4) sides. (Figure 4) Table 3 lists the minimum
Shroud dimensions, including the minimum
height and length of the base openings on the
sides, depending on the diameter of DuraTech
chimney.