DuraVent FasNSeal W2 7" x 12" 316L Stainless Steel Double Wall Vent Length w48.875 4" / 100cm (39

4" / 100cm (39

Item Number 18BVF Series Round Type B Gas Vent Model BV (3" - 30") Product Type Adjustable Roof Flashing Size (Diameter) 18" A 31 1/2" B 31 1/2" Technical Dimensions

Automatic Shut-Off Yes Built-in Thermostat Yes Adjustable Flame Yes Remote Control Yes Adjustable Brightness Yes Power Connections

trackless doors Will Fit Widths 47" to 50" Will Fit Heights 25 to 27 3/8" Overall Frame Size Width x Heights 51 x 28 *When ordering standard masonry overlap fit doors it is best to go with the smaller frame size

DuraVent FasNSeal W2 7" x 12" 316L Stainless Steel Double Wall Vent Length w48.875 4" / 100cm (39FasNSeal W2 (double wall) vent lengths and components feature patented built in mechanical locking band and triple lipped directional gaskets. All pipes and components are engineered with smooth clean welds located 90 from mechanical locking bands. This construction feature allows for ease of installation. The air space between the inner and outer wall on FasNSeal W2 helps to reduce the clearance to combustibles in addition to creating a heat shield