24
Roof Pitch
H (Min.) Ft.
H (Min.) m
Flat to 6/12
1.0
0.30
Over 6/12 to 7/12
1.25
0.38
Over 7/12 to 8/12
1.5
0.46
Over 8/12 to 9/12
2.0
0.61
Over 9/12 to 10/12
2.5
0.76
Over 10/12 to 11/12
3.25
0.99
Over 11/12 to 12/12
4.0
1.22
Over 12/12 to 14/12
5.0
1.52
Over 14/12 to 16/12
6.0
1.83
Over 16/12 to 18/12
7.0
2.13
Over 18/12 to 20/12
7.5
2.27
Over 20/12 to 21/12
8.0
2.44
VENT TERMINATION CLEARANCES
VENTING
(Vertical Cap Requirements)
Figure 24a
CAUTION
This appliance must not be connected to or joined with any chimney flue serving any other appliance.
* If vent is closer than 12 in. (305mm), it must terminate at
least 2ft. (0.61m) higher than any portion of a building within
10ft. (3.05m) of the vent.
Approved Cap
Approved vent pipe
Roof pitch = X/12
Discharge opening
H - Minimum height from roof to lowest discharge opening
12
X
Minimum
*12 in. (305mm)
H
