Installation Guide
Polypropylene (PP) Common Venting Installation Instructions            25 
Copyright © 2018 Rinnai America Corporation. All Rights Reserved.  
Check on whether local codes supersedes these clearances. 
•  Avoid terminaon locaons near a dryer vent. 
•  Avoid terminaon locaons near commercial 
cooking exhaust. 
•  You must install a vent terminaon at least 12” 
above grade or snow line. 
60"
V
V
(0.91 m) 
between 
terminals at 
dierent levels 
24"
V
(0.61 m) to wall or parapet 
Additional Clearances  
36"
24"
INS ID E
CO RNER
(0.61 m ) to an inside corner 
(0.91 m) between 
terminals at same 
level 
The vent for this appliance shall not terminate 
•  Over public walkways; or 
•  Near sot vents or crawl space vents or other 
area where condensate or vapor could create a 
nuisance or hazard or cause property damage; or 
•  Where condensate or vapor could cause damage 
or could be detrimental to the operaon of 
regulators, relief valves, or other equipment. 
Important consideraons for locang vent 
terminaon under a sot (venlated or unvenlated 
or eave vent; or to a deck or porch) 
•  Do not install vent terminaon under a sot 
vent such that exhaust can enter the sot vent 
•  Install vent terminaon such that exhaust and 
rising moisture will not collect under 
eaves.  Discoloraon to the exterior of the 
building could occur if installed too close. 
•  Do not install the vent terminaon too close 
under the sot where it could present 
recirculaon of exhaust gases back into the 
combuson air intake part of the terminaon. 
V 
Represents the exhaust vent of the 
common venng. 
12” 
X 
Represents the combuson air vent of 
the common venng. 
X 
V 
V 
V 










