Metal-Fab Type B-Vent 12" Firestop Spacer w19.75 totally enclosed and heavy duty

totally enclosed and heavy duty ball bearing motor for maintenance-free operation

ComfortBilt hearth pads have been tested and approved by an independent laboratory to meet and exceed UL-1618

Rated for indoor applications only

Why won’t the smoke go up the chimney of my firehouse

and manufactured wood logs (i

Metal-Fab Type B-Vent 12" Firestop Spacer w19.75 totally enclosed and heavy dutyType 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