12″ Diameter Firestop
Use in ceiling/floor penetrations above fireplace. Firestop is not required when passing through the roof. Fits on underside of ceiling.
DuraChimney is a double-wall, air-cooled chimney system for use with masonry fireplaces which burn wood, oil, coal or gas. DuraChimney is an exceptional factory-built alternative to pre-fabricated masonry chimneys that provides a hot draft on the inside and proves a fire-safe design that protects both the chimney and the building.