The Rinnai Extension Vent Pipe, part number 224053, is a factory-approved venting extension designed to add length to compatible Rinnai direct-vent water heater exhaust systems, supporting proper vent routing and code-compliant installation.
What’s included: One (1) 39-inch vent pipe extension.
Installation limits: Intended for use only with compatible Rinnai venting systems; must be installed according to manufacturer vent length limits and local codes.
Compatibility: Designed for select Rinnai direct-vent tankless water heater venting applications.