DuraVent FasNSeal 12" 316L Stainless Steel Fixed Blade Damper chimney-component 400 sq ft based on

400 sq ft based on climate and home efficiency

With zero hard utility connections

Artful in its simplicity

Model 614509 Clearance Zero/Zero clearance when installed into a masonry chimney and wrapped with a 1/2" ceramic fiber insulation blanket

A liner is required for the 60-inch

DuraVent FasNSeal 12" 316L Stainless Steel Fixed Blade Damper chimney-component 400 sq ft based onAll FasNSeal (single 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