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VENTING Rinnai Tankless Water Heaters use a unique Concentric Venting System - a single-vent assembly featuring an inner tube for exhaust and an outer tube for fresh air from outdoors. The result is a direct-vent, sealed-combustion system that offers safety and performance. Condensing units (Ultra Series) use a polypropylene inner pipe designed to withstand higher temperature conditions than more commonly used alter- natives. The Concentric Venting System makes installations fast and easy. Single penetration through wall reduces install time and costs. Simple positive fit-and-lock components ensure secure connection. Joint seals expand and contract with weather to prevent damage.
TERMINATION & TERMINATION KITS 1
LUXURY & VALUE SERIES - NON-CONDENSING CAT. NO. MFG. NO. IMAGE DESCRIPTION