Metal-Fab Type B-Vent 3" x 60" Chimney Length Pipe thermostat-vent-free-heaters Why do my heaters which

Why do my heaters which off automatically after 4hours

8" inner diameter

life-like gradient flame complemented by a stunning traditional log set

Does not require venting and does not emit smoke or gas odors

Metal-Fab Type B-Vent 3" x 60" Chimney Length Pipe thermostat-vent-free-heaters Why do my heaters whichType 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