Horizontal Vent Termination
Vent Pipe
90o Elbow
Combustion Air
Inlet Pipe
36" (0.9m) Minimum
Above grade
or snow line
6 ft. (1.8m)
To Adjacent Wall
Or Building
12.0" (0.3m) Min.
18.0" (0.45m)Max.
Install
Termination
Screen
Vent Pipe
Combustion Air
Inlet Pipe
12" (0.3m) Minimum
from adjacent wall
12" (0.3m)
Minimum
24" Minimum
To adjacent wall
12" (0.3m)
Minimum
Structure
Min. Clearances to Vent
Terminal (all directions
unless specified)
Combustion air inlet of another appliance
6 ft. (1.8m)
Forced air inlet within 10 ft. (3.1m)
3 ft. (0.9m) above
Door, window or gravity air inlet
4ft. (1.2m) horizontally
4 ft. (1.2m) below
1ft. (0.3m) above
Gas meter and relief equipment, Electric
meter
US- 4ft. (1.2m) horizontally
Canada - 6 ft. (1.8m)
Gas Regulator
3 ft. (0.9m) horizontally
Adjacent public walkways
7 ft. (2.1m) above
See Table below for required clearances from vent termination to
building features and structures.
