The 21” Horizontal Termination Kit delivers a streamlined solution for venting condensing tankless water heaters and boilers from Rinnai’s SE, SE+, Q, M, or I-Series models while meeting rigorous ULC-S636 standards for Canadian installations. Designed to simplify installations, this system requires only a single roof or wall penetration yet provides both functional efficiency and a clean professional appearance.
Crafted from durable polypropylene (PP), this venting system offers a superior alternative to traditional PVC solutions by eliminating solvent-based assembly and reducing stress fractures common in rigid materials. The recyclable design aligns with eco-conscious practices while maintaining structural integrity over time.
The kit includes two distinct vent components: a 5-inch outer pipe for fresh air intake and a 3-inch inner channel dedicated to exhaust gases—a configuration that ensures safe and efficient combustion byproduct removal. Unlike PVC systems requiring curing periods before use, this kit enables immediate appliance operation post-installation, saving valuable time on projects.
Engineered for cost-effectiveness over its lifecycle, this termination kit competes favorably with PVC options when factoring in reduced labor hours and material waste during setup. Its compatibility with leading Rinnai models makes it an ideal choice for contractors seeking reliable performance without compromising on compliance or aesthetics.
Whether upgrading an existing system or installing new equipment, this termination kit combines regulatory adherence with practical advantages—delivering long-term durability at an affordable price point while enhancing installation efficiency and visual appeal.
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