3.1
typical venting installation
15"
(38.1cm)
minimum
base of
air collar
SINGLE-SIDED
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.
30"
(76.2cm)
minimum
base of air collar
SINGLE-SIDED
18"
(45.7cm)
maximum
47 3/4"
air collar
(121.3cm)
minimum plus rise
12"
(30.5cm)
minimum
to grade
base of air collar
L38
D
40" (101.6cm)
minimum venting requirements
15"
(38.1cm)
minimum
base of
SEE-THRU
30"
(76.2cm)
minimum
SEE-THRU
L50
46 1/2" (118.1cm)
D
47 3/4"
(121.3cm)
minimum plus rise
D
12"
(30.5cm)
minimum
to grade
W415-1707 / 07.04.17
EN
15