Combustion Air; Adding Vent Sections - Napoleon GDS28P Installation And Operating Instructions Manual

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4.7.4 COMBUSTION AIR

This appliance needs air for safe operation and must be installed in such a way that adequate combustion air
is available.

4.7.5 ADDING VENT SECTIONS

Add chimney sections, according to the manufacturers installation instructions. The chimney must extend at
least, 3 feet above its point of contact with the roof and at least 2 feet higher than any wall, roof, building or
obstacle within 10 feet horizontally.
3 FT
MIN
W415-0153 / B / 06.10.10
2 FT MIN
10 FT TO
NEAREST
ROOFLINE
10 FT OR
MORE
FLAT ROOF
LESS THAN
10 FEET
2 FT
RIDGE
MIN
3 FT
MIN
3 FT
MIN
3 FT
MIN
LESS THAN
10 FT
2 FT
MIN
WALL
59.1A