Special Vent Installations; Periscope Termination; Corner Termination - Napoleon GDS26N Installation And Operating Instructions Manual

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" (304.8mm) above grade. The
maximum allowable vent length is 10' (3.1m) for a fi replace and 8' (2.4m) for a stove.
24"
(610mm)
MINIMUM

3.3.2 CORNER TERMINATION

The maximum vent length for a corner installation is 20" (508mm) of horizontal run, in addition to the 45° offset.
In this case zero rise is acceptable. See illustrations below. It is recommended to maintain a 6" (152mm) rise.
12"
(305mm)
MIN TO
GRADE
24" (610mm)
MINIMUM
35 1/2"
(902mm)
6" RISE
MINIMUM
12"
(305mm) MIN
TO GRADE
9.4A
20" (508mm)
MAXIMUM
W415-1333 / 06.25.14
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EN