WHAT ARE PELLET & BIOFUELS? A system designed and built to exhaust appliances that burn wood pellets, corn, or other pelletized bio fuels. These systems are commonly called “PL vent”, “P vent”, or “Pellet vent”. This type of system is listed to UL 641, ULC S609, or ULC/ORD C441. 


Used as small diameter direct vent for power vented fireplaces. Make sure your appliance is approved to use CVS by name.

PelletVent Pro®

Biofuel venting system. UL641, ULC S609, and ULC/ORD C441.

PelletVent® for multi-fuel

Multi-fuel venting system. c-UL-us Listed to UL 641. ULC Listed to ULC S609.

We recommend that our pellet hearth products be installed and serviced by professionals who are certified in the U.S. by the National Fireplace institute® (NFI) as NFI Pellet Specialists or who are certified in Canada by Wood Energy Technical Training (WETT).