EN
W415-1794 / 06.28.18
13
venting requirements
2.1 typical venting installation
12"
(30.5cm)
minimum
to grade
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.
base of air collar
base of air collar
TOP VENT
REAR VENT
TOP VENT
24” (61cm)
Maximum
12” (30.5cm)
Minimum
45 5/8”
(115.8cm)
Minimum plus
rise*
20” (50.8cm)
Maximum
24 3/16” (61.4cm)
Minimum plus rise*
30” (76.2cm)
Minimum
*See “venting requirements” and
“venting installation” sections.
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