DuraVent FasNSeal W2 14" 29-4C Stainless Steel Double Wall Vent Length With Support Plate biomass The maximum increase is 4

The maximum increase is 4 sizes

BX2 Model: 325lb [147kg]

25" (W) x 7" Protrusion Finished New Bronze Finish Certification CSA certified

UL 1777 and ULC-S635 Listed

DuraVent FasNSeal W2 14" 29-4C Stainless Steel Double Wall Vent Length With Support Plate biomass The maximum increase is 4FasNSeal 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