Clearances from appliance, Attachment of the water heater – Rinnai R50LSI User Manual
Page 18

18
VA Series Indoor LS Manual
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. 
Attachment of the Water Heater
wall installation
brackets
to side
to front
to top
to floor/ground
to Combustibles
to Non-
Combustibles
R50LSi 
R75LSi 
R94LSi 
R98LSi
R50LSi 
R75LSi 
R94LSi 
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) 
24 inches 
(610 mm) 
6 inches 
(152 mm) 
24 inches 
(610 mm) 
Sides of 
Heater 
2 inches 
(51 mm) 
2 inches 
(51 mm) 
1/2 inch 
(13 mm) 
1/2 inch 
(13 mm) 
Floor/
Ground 
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)
Every vent connection must be accessible for inspection, cleaning, and replacement.
* 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: R50LSi, R75LSi, R94LSi: clearance is 6 inches (152 mm) from the front. 
 
R98LSi: clearance is 24 inches (610 mm) from the front.
