KitchenAid 30" (76.2 CM) RANGE HOOD Installation Instructions And Use & Care Manual page 7

Calculating Vent System Length
To calculate the length of the system you need, add the
equivalent feet (meters) for each vent piece used in the system.
6" (15.2 cm) or Larger Round Vent System
Vent Piece
45° elbow
90° elbow
6" (15.2 cm) or larger
wall cap
3 " x 10" (8.3 cm x 25.4 cm)
to 6" (15.2 cm) or larger
3 " x 10" (8.3 cm x 25.4 cm)
to 6" (15.2 cm) or larger
90° elbow
Example vent system
90˚ elbow
2 ft (0.6 m)
Maximum Recommended Length
1 - 90° elbow
1 - wall cap
8 ft (2.4 m) straight
Length of 7" (17.8 cm) system
Round
2.5 ft
(0.8 m)
5.0 ft
(1.5 m)
0.0 ft
(0.0 m)
4.5 ft
(1.4 m)
5.0 ft
(1.5 m)
Wall cap
6 ft (1.8 m)
= 50 ft (15.2 m)
= 5.0 ft (1.5 m)
= 0.0 ft (0.0 m)
= 8.0 ft (2.4 m)
= 13.0 ft (3.9 m)
" x 10" (8.3 cm x 25.4 cm) Vent System
Vent Piece
3 " x 10" (8.3 cm x 25.4 cm)
90° elbow
3 " x 10" (8.3 cm x 25.4 cm)
flat elbow
3 " x 10" (8.3 cm x 25.4 cm)
wall cap
Example vent system
3 " x 10"
(8.3 x 25.4 cm)
elbow
6 ft (1.8 m)
2 ft
(0.6 m)
Maximum Recommended Length
1 - 90° elbow
8 ft (2.4 m) straight
1 - wall cap
Length of 3 " x 10" (8.3 cm x 25.4 cm)
system
5.0 ft
(1.5 m)
12.0 ft
(3.7 m)
0.0 ft
(0.0 m)
Wall cap
= 35 ft (10.7 m)
= 5.0 ft (1.5 m)
= 8.0 ft (2.4 m)
= 0.0 ft (0.0 m)
= 13.0 ft (3.9 m)
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