Rinnai RCi Series Tankless Water Heaters utilize concentric venting with an inner pipe that is designed to withstand varying flue temperature conditions that may be experienced over the life of a condensing product. The Ubbink Rolux® condensing concentric vent system is considered part of the direct vent tankless water heater, and has been tested and approved with the appliance by a third party testing agency.
Material of Inner/Exhaust -Polypropylene (PPs) | Vent components can be used in Canada and comply with the requirements of ULC-S636 | Requires only one roof or wall penetration | Excellent alternative to PVC – no solvents, fewer stress fractures and recyclable | Compatible with Rinnai Condensing Tankless Water Heaters and Condensing Boilers (SE, SE+, Q, M, or I-Series) | Vent components consist of an outer vent for air intake (5 in.) and an inner vent for the exhaust gases (3 in.) | Nice professional look to installation | No cure time, so appliance is ready for immediate use | As cost-effective as PVC, when considering total time and materials for installation
Manufacturer Web Site: http://www.rinnai.us
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