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venting requirements
EN
2.2
special vent installations
2.2.1 periscope termination
Use the periscope kit to locate the air termination above grade. The periscope must be installed so that when
fi nal grading is completed, the bottom air slot is located a minimum 12" (305mm) above grade. The maximum
allowable vent length (including both rise and run) is 10' (3m) for a fi replace and 8' (2m) for a stove. An insulation
sleeve is illustrated in the top vent image below, use only when supplied with the appliance.
(The insulation sleeve is not required with a stove appliance)
30" (762mm)
minimum
12"
MINIMUM
24"
30"
(610mm)
MINIMUM
2.2.2 corner termination
The maximum vent length for a corner installation is 20" (50.8cm) of horizontal run, in addition to the 45° offset. In
MAXIMUM 10FT VENT LENGTH
this case zero rise is acceptable. When using rigid venting, zero rise is acceptable. it is required to maintain a 6"
TALLATION
(152mm) rise when using flexible venting, see illustrations below.
REAR EXIT INSTALLATION
m)
M
m)
M
16
W415-4150 / A-0 / 05.23.24
12"
MINIMUM
REAR VENT
6" (152mm)
RISE MINIMUM
Flexible Venting
6" (152mm)
Rear Vent Corner
RISE MINIMUM
12" (305mm)
minimum
to grade
30" (762mm)
minimum
34 5/8"
MINIMUM
(879mm)
CBX36 Required Rise
6" (152mm)
12"
MINIMUM
30"
TOP VENT
8.1
MAXIMUM 10FT VENT LENGTH
TOP EXIT INSTALLATION
20" (50.8cm)
MAXIMUM
Rigid Venting
20" (50.8cm)
MAXIMUM
12" (305mm)
minimum
to grade
30"
MINIMUM
REAR EXIT INST
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