Instructions / Assembly

6
Concrete Slab Installations - Exhaust Through Wall
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.
Example vent system
NOTE: Flexible vent is not recommended. Flexible vent creates
back pressure and air turbulence that greatly reduce
performance.
A. Wall cap
B. 6" (15.2 cm) round metal vent
C. 16" (40.6 cm) maximum
D. 6" (15.2 cm) round PVC
sewer pipe
E. 5" to 6" (12.7 cm to 15.2 cm)
transition
F. 6" (15.2 cm) round
metal duct
G. 6" (15.2 cm) round
PVC coupling
H. Concrete slab
I. 6" (15.2 cm) round PVC
sewer pipe
J. 6" (15.2 cm) round 90°
PVC sewer pipe elbow
K. Tightly pack gravel or sand
completely around pipe.
L. 30 ft (9.1 m) max.
M. 6" (15.2 cm) round 90°
PVC sewer pipe elbow
N. 6" (15.2 cm) round PVC
coupling
O. 12" (30.5 cm) minimum
Vent Piece 6" (15.2 cm) Round
45° elbow 2.5 ft
(0.8 m)
90° elbow 5.0 ft
(1.5 m)
6" (15.2 cm)
wall cap
0.0 ft
(0.0 m)
3¹⁄₄" x 10" (8.3 cm x 25.4 cm)
to 6" (15.2 cm) transition
4.5 ft
(1.4 m)
A
B
C
D
E
F
G
H
I
J
M
K
N
O
L
6" (15.2 cm) to 3¹⁄₄" x 10"
(8.3 cm x 25.4 cm) transition
1 ft
(0.3 m)
3¹⁄₄" x 10" (8.3 cm x 25.4 cm)
to 6" (15.2 cm) 90° elbow
transition
9.0 ft
(2.7 m)
6" (15.2 cm) to 3¹⁄₄" x 10"
(8.3 cm x 25.4 cm) 90° elbow
transition
5.0 ft
(1.5 m)
3¹⁄₄" x 10" (8.3 cm x 25.4 cm)
90° elbow
5.0 ft
(1.5 m)
3¹⁄₄" x 10" (8.3 cm x 25.4 cm)
flat elbow
12.0 ft
(3.7 m)
3¹⁄₄" x 10" (8.3 cm x 25.4 cm)
wall cap
0.0 ft
(0.0 m)
5" to 6" (12.7 cm to 15.2 cm)
transition
1 ft
(0.3 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)
System length = 13 ft (3.9 m)
90˚ elbow
2 ft
(0.6 m)
6 ft (1.8 m)
wall cap