Rinnai Tankless Water Heater Installation and Operation Manual
25
4.5.2 Termination
Considerations
Check to determine whether local codes
supersede the following clearances:
•
Avoid termination locations near a dryer
vent.
•
Avoid termination locations near
commercial cooking exhaust.
•
You must install a vent termination at least
12 inches above the ground.
Important considerations for locating vent
termination under a soffit (ventilated or
unventilated or eave vent; or to a deck or porch)
•
DO NOT install vent termination under a
vented soffit that may result in exhaust
gases entering the soffit vent.
•
Install vent termination such that exhaust
and rising moisture will not collect under
eaves. Discoloration to the exterior of the
building could occur if installed too close.
•
DO NOT install the vent termination too
close under the soffit where it could cause
recirculation of exhaust gases back into
the combustion air intake portion of the
termination.
V
60"
V
(1.52 m) vertically
between
terminations
Figure 16
Figure 17
Figure 16
Figure 18
Figure 19
(0.30 m ) to
an inside
corner
(0.30 m) between
terminations at
same level
12 in.
12 in.
(0.30 m) between
terminations at
same level
12 in.
(0.61 m) to wall or parapet
24 in.
(1.52 m) vertically
between
terminations at
different levels
60 in.
