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21
INSTALLATION OPTIONS | MULTIPLE AND OPTIMIZED VENTING
Consult NFPA 54 for safety requirements for the design and installation of fuel gas piping systems
2 in. Venting Options
The Rinnai® SENSEI™ can be used for replacement
applications, but new installs can use smaller, lighter, less expensive
concentric venting.
• 14 possible vent configurations
• 9 compatible vent manufacturers*
*Includes PVC
• Unit requires only a single penetration through the wall, reducing install time
and costs
• Simple positive-fit components oer a secure connection
• Joint seals expand and contract with weather to prevent damage
• Assembly and adjustment are easy
CONCENTRIC
Diameter Equivalent Length Termination
3 in. / 5 in. 150' (46 m) Vertical or Horizontal
2 in. / 4 in. (NEW)
65' (20 m) Vertical or Horizontal
TWIN PIPE AND ROOM AIR PP, PVC, CPVC
Diameter Equivalent Length Termination
3 in. 150' (46 m) Vertical or Horizontal
2 in. (NEW)
65' (20 m) Vertical or Horizontal
Example Vent
Configurations
CONCENTRIC
2 in. / 4 in.
horizontal wall
termination
configuration
3 in. / 5 in.
horizontal wall
termination
configuration
2 in. / 4 in.
or 3 in. / 5 in.
vertical roof
termination
configuration
TWIN PIPE ROOM AIR
Vertical termination direct
vent configuration
Vertical termination
room air configuration
ELBOWS OR TEES
Elbow or tee side wall
termination room air
configuration
Elbow or tee side wall
termination direct vent
configuration
2 in. adaptor ring and cap let you use 3 in. / 5 in. concentric
venting or 2 in. twin pipe venting
EXHAUST
ADAPTOR RING
INTAKE
CAP
SENSEI™ SE+ Series