4
Venting methods
This canopy range hood is factory set for
venting through the roof or wall. For non-
vented (recirculating) installations, see
“Non-Vented (Recirculating) Kits” on
back page.
Vent system needed for installation is not
included. 3-1/4" x 10" (8.3 cm x 25 cm)
rectangular, 7" (17.8 cm) round, 8"
(20.3 cm) round or 9" (22.9 cm) round
vent may be used. The hood exhaust
opening is 3-1/4" x 10" (8.3 cm x 25 cm).
Vent system can terminate either through
the roof or wall. To vent through a wall,
a 90° elbow is needed.
The vent system length should not
exceed the lengths shown in the chart
below.
Vent size
Maximum length
3-1/4" x 10"
35 ft. (10.7 m)
(8.3 cm x 25 cm)
7" (17.8 cm) round
40 ft. (12.2 m)
8" (20.3 cm) round
50 ft. (15.2 m)
9" (22.9 cm) round
60 ft. (18.3 m)
Vent Piece
3-1/4" x 10" (8.3 cm x 25 cm) 7" (17.8 cm), 8" (20.3 cm)
Rectangular
or 9" (22.9 cm) Round
45° elbow
7.0 feet
2.5 feet
(2.1 m)
(0.8 cm)
90° elbow
5.0 feet
5.0 feet
(1.5 m)
(1.5 m)
90° flat elbow
12.0 feet
(3.7 m)
transition to round
5.0 feet
(1.5 m)
wall cap
0.0 feet
(0.0 m)
3-1/4" x 10”
(8.3 cm x 25 cm)
elbow
wall
cap
Maximum length
= 35 ft. (10.7 m)
1 — 90° elbow
= 5 ft. (1.5 m)
8 ft. (2.4 m) straight
= 8 ft. (2.4 m)
1 — wall cap
= 0 ft.
(0 m)
Length of 3-1/4" x 10"
(8.3 cm x 25 cm)
system = 13
ft.
(4
m)
6 ft. (1.8 m)
2 ft.
(0.6 m)
3-1/4" x 10" (8.3 cm x 25 cm)
vent system
To calculate the length of the system
you need, add the equivalent feet for
each vent piece used in the system.
Note: Flexible vent is Not
recommended.
If it is used, each foot of flexible vent
used is equivalent to two feet
(61 cm) of straight metal vent when
calculating the vent system length.
(Example: A flexible elbow equals two
standard elbows.)
Calculating the vent system length
3-1/4" x 10"
(8.3 cm x 25 cm)
through the roof
Note: 3-1/4" x 10"
(8.3 cm x 25 cm)
rectangular vent
must be used
inside chimney
cover. Round vent
will not fit inside
chimney cover.
roof cap
Horizontal wall venting
3-1/4" x 10"
(8.3 cm x 25 cm)
through the wall
wall cap
Vertical roof venting
