2
Non-Direct Vent
NOTE: Installation of Non-Direct Vent (Room Air) must use listed category IV venting.
NOTE: All terminations (horizontal and/or vertical) must terminate 12 in. above grade or anticipated snow level.
Termination Clearances for External (Outdoor) Water Heaters
Exhaust Termination Clearances for Internal (Indoor) Room Air Applications
34
(Room Air and External)
12 in.
(0.30 m)
Inside
Corner
12"
(0.30 m)
Inside
Corner
Rinnai Tankless Water Heater Installation and Operation Manual
2 in.
(0.91 m) to ventilated or unventilated soffit or
36 in.
eve vent; or to a deck or porch
60 in.
(1.52 m) vertically between terminals
12"
60"
(1.52 m) vertically between terminals