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ADDITIONAL CLEARANCES
Please follow all local and national codes in regards to proper termination clearances. In the
absence of such codes, the following clearances can be used as guidelines. Local codes
supersede these guidelines.
For sidewall terminations
Exhaust termination
1ft.
1ft.
2ft.
Inside
corner
Air supply inlet
3ft.
3ft.
3ft.
Direct vent
termination
1ft.
1ft.
Inside
corner
2ft.
For multiple sidewall exhaust terminations (e.g.
multi-unit systems), an exhaust termination must
be at least 1 ft. away from another exhaust
termination. An exhaust termination must also be
at least 2 ft. away from an inside corner (if the
adjacent wall is less than 2 ft. of length, the
minimum required distance away from the inside
corner will be equal to the length of the wall).
For direct-vent sidewall terminations that use two
separate penetrations for the intake and exhaust,
distance the intake and exhaust terminations at
least 3 ft. away from each other, no matter the
orientation.
For multiple-unit, direct-vent sidewall terminations
that combine the intake and exhaust into a single
penetration, space each direct-vent termination at
least 1 ft. away from each other, no matter the
orientation. A direct-vent termination must also be
at least 2 ft. away from an inside corner (if the
adjacent wall is less than 2 ft. of length, the
minimum required distance away from the inside
corner will be equal to the length of the wall).
