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-For sidewall terminations-
For multiple sidewall exhaust terminations (e.g. Multi-Unit
Systems), an exhaust termination must be at least 305mm
(1 ft.) away from another exhaust termination. An exhaust
termination must also be at least 610 mm (2 ft.) away
from an inside corner. (If the adjacent wall is less than 610
mm (2 ft.) of length, the minimum required distance away
from the inside corner will be equal to the length of that
adjacent wall.)
For multiple-unit, direct-vent sidewall terminations that
combine the intake and exhaust into a single penetration,
space each direct-vent termination at least 915 mm (3 ft.)
away from each other, no matter the orientation. A direct-
vent termination must also be at least 610 mm (2 ft.) away
from an inside corner. (If the adjacent wall is less than 610
mm (2 ft.) of length, the minimum required distance away
from the inside corner will be equal to the length of that
adjacent wall.)
Please follow all local and national codes in regards to proper termination
clearances. In the absence of such codes, the clearances below can be used as
guidelines. Local codes supersede these guidelines.
CAUTION
Installation
Exhaust
termination
Inside
corner
305 mm
(1 ft.)
610 mm
(2 ft.)
305 mm
(1 ft.)
Installation Manual
Combined
intake and
exhaust
termination
Inside
corner
915 mm
(3 ft.)
610 mm
(2 ft.)
915 mm
(3 ft.)
For direct-vent sidewall
terminations that use two
separate penetrations for
the intake and exhaust,
keep the termination
clearances shown in the
diagrams on the right.
Intake
A
<Case 2>
Exhaust
Intake
Exhaust
<Case 1>
914 mm (3 ft.)
min
A
A
Exhaust
Intake
Exhaust
Intake
914 mm (3 ft.) min
A
A: 159 mm (0.5 ft. ) min
The clearance of A is recommended for easy installation.
