DuraVent FasNSeal Flex 9" Stainless Steel Top Cover Plate btu300000 An insulation shield must be

An insulation shield must be used anytime the chimney system passes through an attic

5 lbs Pizza Stone Size 12" x 12" x 0

or a striking three-sided bay fireplace

For use with Superior Secure Vent 4

DuraVent FasNSeal Flex 9" Stainless Steel Top Cover Plate btu300000 An insulation shield must beMade from super ferritic stainless steel. Corrosion resistant. Manufactured with a sure seal locking seam for superior strength and flexibility. The smooth inner wall provides for no output reduction, allowing for full appliance efficiency, ease of cleaning and regular maintenance. The smooth inner wall optimizes gas flow, minimizes back pressure, and facilitates condensate management. Only flexible chimney liner listed to UL 1738 standard. What's