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3.3
SPECIAL VENT INSTALLATIONS
3.3.1 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" above grade. The maximum allowable vent length is 10' for a
fi replace and 8' for a stove.
29" MIN REGARDLESS
OF HORIZONTAL VENT
LENGTH
30 3/4"
11
12"
MINIMUM
TO GRADE
9.1A
W415-0514 / E / 04.16.12
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