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Manual - Rinnai Condensing Water Heaters 17
Clearances from Appliance
1. Identify the installation location and confirm that
the installation will meet all required clearances.
2. Securely attach the water heater to the wall using
any of the holes in the wall installation brackets
which are at the top and bottom of the water
heater. Ensure that the attachment strength is
sufficient to support the weight. Refer to the
weight of the water heater in the Specifications
section.
NOTE: Rinnai water heaters should be installed in an
upright position. Do not install upside down
or on its side.
Attachment of the Water Heater
wall installation
brackets
to Combustibles
to Non-
Combustibles
Top of
Heater
6 inches *
(152 mm)
2 inches *
(51 mm)
Back of
Heater
0 (zero) 0 (zero)
Front of
Heater
6 inches
(152 mm)
6 inches
(152 mm)
Sides of
Heater
2 inches
(51 mm)
1/2 inch
(13 mm)
Ground 12 inches
(305 mm)
12 inches
(305 mm)
Vent
0 (zero) 0 (zero)
The clearance for servicing is 24 inches in front of the water heater.
For closet installation: clearance is 6 inches (152 mm) from the front.
* Zero inches from vent components and condensate drain line.
to Combustibles
to Non-
Combustibles
Top of
Heater
12 inches
(305 mm)
2 inches
(51 mm)
Back of
Heater
0 (zero) 0 (zero)
Front
(Panel)
24 inches
(610 mm)
0 (zero)
Sides of
Heater
6 inches
(152 mm)
1/8 inch
(3.2 mm)
Ground 12 inches
(305 mm)
2 inches
(51 mm)
Front
(Exhaust)
24 inches
(610 mm)
24 inches
(610 mm)
RC80i, RC98i RC80e, RC98e
to side
to front
to top
to floor/ground