Metal-Fab Type B-Vent 7" to 12" Increaser h30.25 an inner and outer liner

an inner and outer liner that must beused together

CLEAN BURNING: Uses clean burning Liquid Bio-ethanol fuel

Standing pilot valve system ensures ready operation during power outages

the heater can also be controlled via a standard wall switch

Metal-Fab Type B-Vent 7" to 12" Increaser h30.25 an inner and outer linerType 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