The Rinnai Water Heater Extension Vent Pipe 19.5", part number 224052, is a vent pipe extension section designed to increase the length of a Rinnai concentric vent system on compatible non-condensing tankless water heaters. It provides additional pipe length to help reach appropriate termination locations while maintaining the proper dual-flow (exhaust and intake) design of the system. This extension is engineered to match the original vent components, ensuring correct fit, sealing, and airflow characteristics when installed as part of a certified vent system.
This extension vent pipe is intended for indoor installations where a Rinnai concentric vent run must be lengthened to meet building configuration or clearance requirements. It features an inner exhaust tube and outer intake sleeve, maintaining the concentric design that supports simultaneous exhaust and combustion air intake. Installation must follow the manufacturer’s certified venting instructions to ensure proper clearances to combustibles and secure connections throughout the vent run.
What’s Included: One (1) Rinnai 19.5" extension vent pipe section.
Installation Limits: For use with compatible Rinnai non-condensing water heaters that utilize a concentric vent system; install as part of a listed venting assembly and maintain required clearances and secure connections per the venting instructions.
Compatibility: Compatible with indoor Rinnai non-condensing tankless water heaters equipped with a concentric vent system that accepts a 19.5" extension section.
