Napoleon BHD4N - Special Vent Installations; Periscope Termination

W415-1285 / A / 11.03.14
12
EN
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 of 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.
9.5B
38 1/2"
(978mm) MIN
24" (610mm) MIN
REGARDLESS OF
HORIZONTAL VENT
LENGTH
12"
(305mm)
MIN TO
GRADE