The Ubbink Polypropylene Concentric Venting System offers a modern, reliable solution for Rinnai condensing water heater installations, prioritizing safety, efficiency, and ease of use. Designed specifically for models like the Rinnai RU199i, RU180i, and CU160i, this venting system combines innovative engineering with user-friendly features to streamline setup and enhance performance. Its sleek 4-inch concentric design reduces roof or wall penetrations to just one point, saving space while maintaining optimal airflow. The inner 2-inch exhaust channel and outer 4-inch intake work seamlessly together, ensuring efficient gas expulsion and fresh air intake without compromising safety.
Crafted from durable polypropylene (PPs), this venting alternative outperforms traditional PVC options by eliminating the need for solvents or lengthy cure times—meaning your water heater is ready to use immediately after installation. The material’s resistance to stress fractures and recyclable nature adds environmental and durability benefits, while a pre-sloped exhaust design guarantees effective condensate drainage to prevent backups.
Ideal for Canadian installations, the system meets ULC-S636 standards, providing peace of mind for code-compliant setups. Its clean, professional appearance complements any home while offering cost savings over time due to faster installation and fewer material requirements. Whether upgrading to a Rinnai condensing tankless heater or retrofitting existing systems, this venting solution delivers long-lasting reliability and simplified maintenance—without sacrificing performance or safety.
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