Definitions; Elbow Vent Length Values - Napoleon GS60-N Installation And Operating Instructions Manual

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3.6

DEFINITIONS

For the following symbols used in the venting calculations and examples are:
> - greater than
> - equal to or greater than
< - less than
< - equal to or less than
H - total of both horizontal vent lengths (Hr) and offsets (Ho) in feet
T
H - combined horizontal vent lengths in feet
R
H - offset factor: .03 (total degrees of offset - 90°*) in feet
O
V - combined vertical vent lengths in feet
T
3.7

ELBOW VENT LENGTH VALUES

FEET INCHES
1° 0.03 0.5
15° 0.45 6.0
30° 0.9 11.0
45° 1.35 16.0
90°* 2.7 32.0
* The fi rst 90° offset has a zero value and is shown in the formula as - 90°
W415-0788 / A / 09.22.09
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