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HQGVRIWKHDUFK)LJXUH7DEOHOLVWVWKHPLQLPXPVKURXGGLPHQVLRQVWKHPLQLPXPRSHQDUHDSHUVLGHDQGWKH
PLQLPXPWRWDORSHQDUHDIRUWKHVKURXG
Shaded area represents screened open area. Actual
shape of shroud may vary as long as minimum dimen-
sions and minimum open area requirements are met.
H
W
L
H: Minimum height of shroud
L: Minimum length of shroud
W: Minimum width of shroud
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Chimney
Diameter
Chimney Area
0LQ+HLJKW+
0LQ/HQJWK/
Min Width W
0LQ2SHQ$UHD
SHUVLGH
0LQ7RWDO2SHQ
Area
in
mm
in
mm
in
mm
in
mm
in
mm
sq in
sq in
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7KHS\UDPLGVW\OHVKURXGLVURXJKO\VTXDUHRUUHFWDQJXODUZLWKDQRSHQWRSIRUH[KDXVWDVZHOODVRSHQLQJVDORQJWKH
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OHQJWKRIWKHEDVHRSHQLQJ
Shaded area represents screened open area. Actual
shape of shroud may vary as long as minimum dimen-
sions and minimum open area requirements are met.
H2
W
B
H1
L
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
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Pyramid Style Shroud Minimum Dimensions
Chimney
Diameter
0LQ+HLJKW+ 0LQ/HQJWK/
Min Width W
Min Base B
0LQ+HLJKW+
in
mm
in
mm
in
mm
in
mm
in
mm
in
mm
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