EN
W415-1708 / 07.04.17
15
minimum venting requirements
15"
(38.1cm)
15"
(38.1cm)
47 3/4"
(121.3cm)
47 3/4"
(121.3cm)
18"
(45.7cm)
SINGLE-SIDED
SINGLE-SIDED
SEE-THRU
SEE-THRU
3.1 typical venting installation
minimum plus rise
minimum plus rise
maximum
minimum
base of
air collar
base of
air collar
minimum
CL38
CL50
D
40” (101.6cm)
46 1/2” (118.1cm)
D
special vent installation (periscope termination)
Use the periscope kit to locate the air termination above grade. The periscope must be installed so that when
final grading is completed, the bottom air slot is located a minimum 12” (30.5cm) above grade. The maximum
allowable vent length is 10’ (3m) for a fireplace and 8’ (2m) for a stove.
12"
(30.5cm)
minimum
to grade
minimum
30”
(76.2cm)
base of air collar
12"
(30.5cm)
minimum
to grade
D
minimum
30”
(76.2cm)
base of air collar