The Duravent PelletVent Stove Pipe PV Extension Pipe Black 3" x 18", part number 3PVP-18AB, is a straight vent pipe section used in Duravent PelletVent Pro 3" venting systems to extend the vent run by 18 inches. It provides additional length in applications where the venting path must reach a termination point or navigate around obstacles while maintaining proper exhaust and intake airflow. The black finish coordinates with other PelletVent Pro black vent components and is engineered to match original system specifications for fit, connection integrity, and performance.
This extension pipe is typically used between other vent components such as adapters, elbows, tees, or storm collars to build a complete vent run for pellet, corn, or other biofuel stoves. The concentric design maintains a central exhaust passage surrounded by an external intake air path, supporting safe combustion air delivery and exhaust removal when installed correctly. Installation must follow the Duravent venting instructions and local codes to ensure secure connections and required clearances around the vent pipe throughout the system.
What’s Included: One (1) Duravent PelletVent Pro 3" x 18" extension pipe in black finish.
Installation Limits: For use only with compatible 3" Duravent PelletVent Pro vent systems and listed pellet stove appliances; install with required clearances to combustibles and secure connections between adjoining components.
Compatibility: Compatible with 3" Duravent PelletVent Pro vent pipe, fittings, and pellet/biofuel appliances that use a 3" vent system.
Use to add length to PelletVent Pro pipe. 12” pipe adds 3” - 10” of length, 18” pipe adds 3” - 16” of length, when used with rigid sections of pipe. Galvalume or painted black outer finish.
