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INSTALLATION
Clearances for Sidewall
Termina ons
WARNING! Improper installa on
can result in carbon monoxide
poisoning or death. Follow all local
and na onal codes in regards to
proper termina on clearances. In
the absence of such codes, the
clearances below can be used as
guidelines. Local codes supersede
these guidelines
Mul ple Sidewall Termina ons
An exhaust termina on must be at
least: 1
(305 mm) from another
exhaust termina on and 2 feet (610
mm) from an inside corner
Figure 18 - Mul ple Sidewall Termina ons
For direct vent sidewall termina ons that use two separate penetra ons for the intake and exhaust, keep the termina on
clearances shown in the diagrams below.
Exhaust
Intake
1 ft (305 mm)
min.
Figure 21 - Direct Vent Sidewall Termina ons
28 • Residen al Gas Tankless Water Heater Use and Care Guide
Mul ple DV Sidewall
Termina ons
A direct vent (DV) termina on must
be at least:
• 1
(305 mm) from other DV termi-
na ons
• 2
(610 mm) from an inside corner
Combined
Figure 19 - Mul ple DV Sidewall Termina ons
0.5 ft
(159 mm)
Exhaust
min.
Intake
0.5 ft
(159 mm) min.
(305 mm)
min.
(305 mm)
min.
Inside
corner
Exhaust
1 ft (305 mm)
min.
Intake
Exhaust and/or direct vent sidewall
termina ons should be at least 2
(610 mm) away from an opposite
surface/wall. Do not place the
termina on directly in front of an
opening into a building.
2 ft (610 mm)
Exhaust
min.
termination
Figure 20 - Sidewall Termina on Minimum
Distance to another Structure.
Exhaust
Intake
0.5 ft
(159 mm) min.
(159 mm)
0.5 ft
min.
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