Metal-Fab Premium Biomass 5" Wall Thimble w33 Tamperproof glass door for Dimplex

Tamperproof glass door for Dimplex BFSL33 firebox

and in factory-built metal fireplaces

Viewing Area: 10" H x 77" W

(1368mm) Fireplace Opening (E x F) 42" x 38"

Metal-Fab Premium Biomass 5" Wall Thimble w33 Tamperproof glass door for DimplexPremium Biomass factory built vent intended for use with Biomass fuel appliances approved for Type L low temperature venting systems in accordance with Standard for Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances, NFPA 211, and the International Mechanical Code. Tested and listed to UL 641, Premium Pellet Vent features a super ferritic corrosion resistant 444 stainless flue designed to operate in highly corrosive biofuel applications.