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W415-2835 / B / 04.05.21
EN
28
rough framing
Do not
p
ut ob
j
ects in front of the a
pp
liance
(
minimum distance of 4 feet
)
35 1/2”
(90.2cm)
side wall
16”
(40.6cm)
2”
(51mm)
33 7/8”
(86cm)
35 1/2”
(90.2cm)
47 7/8”
(121.6cm)
3.1 minimum framing dimensions
HORIZONTAL VENT SECTIONS: A minimum of 1" (25mm) at the bottom and sides, and 3" (76.2mm) at the top
of the vent pipe on all horizontal runs to combustibles is required.
VERTICAL VENT SECTIONS: A minimum of 1" (25mm) all around the vent pipe on all vertical runs to
combustibles is required except for clearances in appliance enclosures. Vertical runs within the enclosure must
maintain a 3" (76.2mm) clearance from combustibles. See "minimum enclosure clearances" section.
The minimum clearances from the top of the horizontal vent pipe to combustible materials may be reduced from
3" (76.2mm) to 1" (25mm) in those installations with a minimum 38" (96.5cm) vertical vent rise made immediately
off the appliance collar.
note:
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