27
Abandoned masonry
used as raceway
(per code)
12 in. (3
0
5 mm) min. from
overhang or roof
Maintain 12 in. (3
0
5mm)
minimum clearance
above highest anticipated
snow level or grade
whichever is greater.
Side wall termination
with 2 elbows (preferred)
12 in. min. (3
0
5 mm)from
overhang or roof
Maintain 12 in. (3
0
5mm)
minimum clearance
above highest anticipated
snow level or grade
whichever is greater
6
in. (152mm) minimum clearance
between wall and end of vent pipe.
1
0
in. (254mm) maximum pipe length
Sidewall Termination
with Straight Pipe (preferred)
Roof Termination (Preferred)
Vent
Maintain 12 in
.
minimum clearance
above highest anticipated
snow level maximum of
24 in. (
6
1
0
mm) above roof
.
9
0
°
(3
0
5mm)
A05091
Fig. 32 -- Vent Pipe Termination for Ventilated Combustion Air (1--pipe) System (All Sizes)
355B
A
V
