Minimum Framing Dimensions - Napoleon Ascent 36 Installation And Operation Manual

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. Use firestop spacer W010-3440 (supplied).
note:
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.
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. Use firestop
spacer W500-0096 (not supplied).
side wall
35 1/2"
(90.2cm)
16"
(40.6cm)
2"
(51mm)
Do not put objects in front of the appliance
(minimum distance of 4 feet)
rough framing
33 7/8"
(86cm)
W415-1847 / 08.10.18
EN
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