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 of 12” (305mm) above grade. The maximum allowable vent length is
10’ (3.1m) for a fi replace and 8’ (2.4m) for a stove.
2.2
special vent installations
2.2.1 periscope
termination
2.2.2 corner
termination
12”
(305mm) MIN
TO GRADE
24” (610mm)
MAX.
SAFETY
BARRIER
25 5/8”
(651mm)
24” (610mm) MIN.
REGARDLESS OF OF
HORIZONTAL VENT
LENGTH
•
Below grade installation maximum
8ft (2.4m) vent length.
•
Use GD201 periscope kit.
•
Horizontal run not to exceed verti-
cal rise.
!
WARNING
W415-2347 / A / 10.17.19
EN
12
venting requirements
Summary of Contents for Bayfield GDS25P-1
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