Napoleon GD40-N Installation And Operation Instructions Manual page 8

8
VENTING OPTION #3
Use this chart to calculate vertical rise for horizontal run
between 3 feet (maximum length when the vertical rise is
at its minimum of 1 foot) and 18 feet. FIGURES 7.
VERTICAL
RISE in feet
HORIZONTAL VENT RUN
VENTING OPTION #4
Use this chart to calculate the vertical rise when using a
total of 2 horizontal runs that consist of 8 feet maximum or
2 feet (maximum length when the vertical rise is at its mini-
mum of 1 foot) for the first run and a 10 feet maximum or
1 foot (maximum length when the vertical rise is at its mini-
mum of 1 foot) for the second run. FIGURES 8.
VERTICAL
RISE in feet
COMBINED HORIZONTAL
WS-415-091 / 06.26.00
in feet
VENT RUN in feet
FIGURES 7
FIGURES 8
8 FT MAX
(2 FT MAX)
18 FT MAX
(3 FT MAX)
20 FT MAX
1 FT MIN
10 FT MAX
(1 FT MAX)
20 FT MAX
1 FT MIN