Calculating Vent System Length - KitchenAid KSDB900E Instructions D'installation

Calculating Vent System Length

IMPORTANT: This range is rated at 60 ft (18.3 m) of 6" (15.2 cm)
or 30 ft (9.15 m) of 5" (12.7 cm) straight duct. To calculate the length
of the system you need, add the equivalent feet (meters) for each vent
piece used in the system.
Vent Piece
Straight round
45° elbow
90° elbow
6" (15.2 cm) wall cap
3¹⁄ " x 10" (8.3 cm x 25.4 cm)
4
to 6" (15.2 cm) transition
6" (15.2 cm) to 3¹⁄ " x 10"
4
(8.3 cm x 25.4 cm) transition
3¹⁄ " x 10" (8.3 cm x 25.4 cm)
4
to 6" (15.2 cm) 90° elbow
transition
6" (15.2 cm) to 3¹⁄ " x 10"
4
(8.3 cm x 25.4 cm) 90° elbow
transition
3¹⁄ " x 10" (8.3 cm x 25.4 cm)
4
90° elbow
3¹⁄ " x 10" (8.3 cm x
4
25.4 cm) flat elbow
3¹⁄ " x 10" (8.3 cm x
4
25.4 cm) wall cap
Straight 3¹⁄ " x 10"
4
(8.3 cm x 25.4 cm)
5" (12.7 cm) thermal break
Part Number 708786A
6" (15.2 cm) thermal break
Part Number 715557A
8
5" (12.7 cm)
or 6" (15.2 cm)
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)
1 ft
(0.3 m)
5.0 ft
(1.5 m)
5.0 ft
(1.5 m)
5.0 ft
(1.5 m)
12.0 ft
(3.7 m)
0.0 ft
(0.0 m)
2.0 ft
(0.6 m)
Example 6" (15.2 cm) vent system
Venting Between Floor Joists
90 elbow
2 ft
(0.6 m)
Maximum length
1- 90° elbow
8 ft (2.4 m) straight
1 - wall cap
System length
NOTE: For external venting, flexible vent is not recommended.
Flexible vent creates back pressure and air turbulence that
greatly reduce performance.
Wall cap
6 ft (1.8 m)
= 60 ft (18.3 m)
= 5 ft (1.5 m)
= 8 ft (2.4 m)
= 0 ft (0 m)
= 13 ft (3.9 m)