Installation Guide

Rinnai Tankless Water Heater Installation and Operation Manual 41
•
Installation of Non-Direct Vent (Room Air) must use listed category IV venting.
•
All terminations (horizontal and/or vertical) must terminate 12 in. (30 cm) above grade or
anticipated snow level.
Termination Clearances for External (Outdoor) Installations
Exhaust Termination Clearances for Internal (Indoor) Room Air Applications
NOTE
Figure 32
Figure 31
12 in.
(0.30 m)
Corner
36 in. (0.91 m) to ventilated or
unventilated soffit or eve vent; or
to a deck or porch
60 in. (1.52 m) vertically between terminals
12 in.
(0.30 m)
12 in. (0.30 m)
60 in. (1.52 m) vertically between terminals