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HOOD EXHAUST
NOTE: Read these next two pages only if you plan to vent your exhaust to the outside. If you plan to recirculate the air
back into the room, proceed to page 33 .
OUTSIDE TOP EXHAUST (EXAMPLE ONLY)
The following chart describes an example of one possible ductwork installation .
DUCT PIECES
Equivalent lengths of duct pieces are based on actual tests and reflect requirements for
good venting performance with any vent hood .
* IMPORTANT: If a rectangular-to-round transition adaptor is used, the bottom corners of the damper will
have to be cut to fit, using the tin snips, in order to allow free movement of the damper .
OUTSIDE BACK EXHAUST (EXAMPLE ONLY)
The following chart describes an example of one possible ductwork installation .
DUCT PIECES
Equivalent lengths of duct pieces are based on actual tests and reflect requirements for
good venting performance with any vent hood .
NOTE: For back exhaust, care should be taken to align exhaust with space between studs, or wall should
be prepared at the time it is constructed by leaving enough space between the wall studs to accommodate
exhaust .
1" = 2.5 cm; 1' = 0.3 m
29-6379
Installation Instructions
Roof Cap
12 Ft . Straight Duct
(6" Round)
Rectangular-to-Round
Transition Adaptor*
Wall Cap
3 Ft . Straight Duct
(3
⁄
" x 10" Rectangular)
1
4
90° Elbow
EQUIVALENT
NUMBER
LENGTH
x
USED
24 Ft .
x
(1)
12 Ft .
x
(1)
5 Ft .
x
(1)
Total Length =
EQUIVALENT
NUMBER
LENGTH
x
USED
40 Ft .
x
(1)
3 Ft .
x
(1)
10 Ft .
x
(2)
Total Length =
=
LENGTH
=
24 Ft .
=
12 Ft .
=
5 Ft .
41 Ft.
=
LENGTH
=
40 Ft .
=
3 Ft .
=
20 Ft .
63 Ft.
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