Round and Oval Type-B Gas Vent is listed by Underwriters Laboratories INC. for use with approved gas furnaces, heaters, fireplace, and boilers. Metal-Fab meets or exceeds all recognized gas venting codes, standards, or requirements, whether Local, State, or United States.
The maximum temperature rating for B-Vent is 530°F.
Double Wall Construction
SureLock B-Vent Locking System: SureLock is standard on 3" - 6" diameters.
Type-B Gas Vent products are tested and listed to UL 441 for approved gas appliances and feature our innovative twist-lock connection and locking tab, eliminating the need for sheet metal screws
Metal-Fab Type B Gas Vent combines hemmed flues and casings that maximize product durability and reliability and minimize installation time.
Designed for versatility, Metal-Fab Type-B Gas Vent products 3"-6" adapt to major competing brands and when installed establish a UL Listed connection.
Fits in 2" x 6" stud walls
Double-wall design allows a 1" clearance to combustibles
Components simply snap together - no tools required