Metal-Fab Premium Biomass 4" Standard Stove Adapter w31 They are available in your

They are available in your choice of natural colors

Maximum Opening Size - 42" W x 37 3/8" H

you can also set a timer off interval

The Napoleon Direct Vent Gas Fireplace Small Beach Fire Kit BFKS is an accessory designed to complement Napoleon gas fireplaces by enhancing the aesthetic appeal and realism of the fireplace

Platinum Gas Spec Sheet

Metal-Fab Premium Biomass 4" Standard Stove Adapter w31 They are available in yourPremium 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.