clearance above
Con_ntric Vent and Corn bustion Air
Roof Termination {ptefurted) ...........
\\\\\
Fig. 47 - Combustion Air and Vent Pipe Termination for Direct Vent (2-Pipe) System
A05090
Roof Termination (Preferred)
cr_ 305mm)
mnmum earance
above highest a_licipated
snow bevel maximum of
24 in (610ram) above roof
[i::::°i
Abandoned masonry
used as raceway
(percode)
12 in rain (305 mm)fron
overhang or roof
6 in (152ram) minimum clearance
between wal[ aid end of vent pipe
10 in (254mm) maximum pipe [enql]
Side walHermination
with 2 ehbows (preferred)
12 in (305 ram) rain from
overhang or roof
Maintain 12 in (305ram)
minimum clearance
above highest a_licipated
snow level or grade
whichever is greater
_O5mm)
ghest anticipated
snow level or grade
whichever is greater
Sidewall Termination
with Straight Pipe (preferred)
Fig. 48 - Vent Pipe Termination for Non-Direct Vent and Ventilated Combustion Air System
A05091
58