Rinnai R98LSI User Manual
Page 17

VB Series Indoor LS Manual
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
RL75i 
RL94i 
R98LSi
RL75i 
RL94i 
R98LSi
Top of 
Heater 
6 inches **
(152 mm) 
12 inches 
(305 mm) 
2 inches **
(51 mm) 
2 inches 
(51 mm) 
Back of 
Heater 
0 (zero)
0 (zero)
0 (zero)
0 (zero)
Front of 
Heater 
6 inches 
(152 mm) 
6 inches 
(152 mm) 
6 inches 
(152 mm) 
6 inches 
(152 mm) 
Sides of 
Heater 
2 inches 
(51 mm) 
2 inches 
(51 mm) 
1/2 inch 
(13 mm) 
1/2 inch 
(13 mm) 
Ground/
Bottom 
12 inches 
(305 mm) 
12 inches 
(305 mm) 
12 inches 
(305 mm) 
2 inches 
(51 mm) 
Vent
0 (zero)
4 inches * 0 (zero)
0 (zero)
* 4 inches (102 mm) for enclosed area; 1 inch (26 mm) for unenclosed area.
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.
** 0 inches from vent components and condensate drain line.
to side
to front
to top
to ground/bottom
