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23
VENTING CHART WORK SHEET EXAMPLES
1 ft
5 ft
1 ft
4 ft
EXAMPLE 1 – FORTY6 Slim-Line Built-In
A. Total Vertical Vent Rise:
__________ feet
B. Total Horizontal Vent Run: __________ feet
C. Total Number of 90° Elbows in excess of 1: __________
(Snorkel terminations are counted as (2) 90° elbows)
D. Total Number of 45° Elbows in excess of 1: __________
E. 90⁰ Elbow Horizontal Equivalent: C x 3 = _____
F. 45⁰ Elbow Horizontal Equivalent: D x 1.5 = _____
G. Total Horizontal Equivalent: B + E + F = _____
EXAMPLE 2 – FORTY6 Slim-Line Built-In
A. Total Vertical Vent Rise:
__________ feet
B. Total Horizontal Vent Run: __________ feet
C. Total Number of 90° Elbows in excess of 1: __________
(Snorkel terminations are counted as (2) 90° elbows)
D. Total Number of 45° Elbows in excess of 1: __________
E. 90⁰ Elbow Horizontal Equivalent: C x 3 = _____
F. 45⁰ Elbow Horizontal Equivalent: D x 1.5 = _____
G. Total Horizontal Equivalent: B + E + F = _____
EXAMPLE 3 – FORTY6 Slim-Line Built-In
A. Total Vertical Vent Rise:
__________ feet
B. Total Horizontal Vent Run: __________ feet
C. Total Number of 90° Elbows in excess of 1: __________
(Snorkel terminations are counted as (2) 90° elbows)
D. Total Number of 45° Elbows in excess of 1: __________
E. 90⁰ Elbow Horizontal Equivalent: C x 3 = _____
F. 45⁰ Elbow Horizontal Equivalent: D x 1.5 = _____
G. Total Horizontal Equivalent: B + E + F = _____
5
1
0
0
0
0
1
0
4
1
0
0
3
7
3
0
8
1
0
1
0
Side View
Side View
Side View
This vent configuration is NOT
ALLOWED. Refer to Vent Chart
on pages 20 and 21.