Common venting methods are shown for a counter-mounted
downdraft cooktop. The cooktop may be vented through the wall
or floor.
Option 1 - Roof Venting
B
A
A. Roof cap
B. 6" (15.2 cm) round roof
venting
Option 3 - Venting Between
Floor Joist
B
A
A. Wall cap
B. 6" (15.2 cm) round wall
venting
6
Venting Methods
Option 2 - Wall Venting
B
A
A. 6" (15.2 cm) round wall
venting
B. Wall cap
Option 4 - Venting behind
Cabinet Kick Plate
B
A
A. Wall cap
B. 6" (15.2 cm) round wall
venting
Concrete Slab Installations -
Exhaust Through Window Well
B
A
C
N
M
L
A. Wall cap
B. 12" (30.5 cm) minimum
C. Concrete slab
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. 6" (15.2 cm) round PVC sewer pipe
I. 6" (15.2 cm) round 90° PVC sewer pipe elbow
J. Tightly pack gravel or sand completely around pipe.
K. 42 ft (12.8 m) max.
L. 6" (15.2 cm) round PVC coupling
M. 6" (15.2 cm) minimum
N. Window well
Concrete Slab Installations - Exhaust Through Wall
B
A
O
N
M
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
D
E
F
G
H
I
K
J
D
E
F
C
G
H
I
J
L
K