Metal-Fab Type B-Vent 12" x 21" Standard Tee w17.5 from flame height to fan

from flame height to fan speed

9 kW) Average overall efficiency (dry cordwood) 71 % (HHV) 76 % (LHV) Optimum overall efficiency  77 % Optimum heat transfer efficiency 75 % Average particulate emissions rate 1

Once connected

Optional Newport™ Deluxe Decorative Brick Panels or MIRRO-FLAME™ Porcelain Reflective Radiant Panels

Metal-Fab Type B-Vent 12" x 21" Standard Tee w17.5 from flame height to fanType 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