Metal-Fab Premium Biomass 6" Wall Thimble fire-art For use with 25" /

For use with 25" / 30" / 36" Millivolt Direct Vent Inserts

as prescribed by Underwriters Laboratories Standard 103HT

For a fantastic finished look on your Napoleon fireplace you need to add a glass ember Packaged Media Kit for 38" and 50" Vector Fireplaces

Fire Screen Door Manual

Metal-Fab Premium Biomass 6" Wall Thimble fire-art For use with 25" /Premium 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.