7" SuperMax Class-A Chimney System
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SuperChimney Max in 7" diameter carries a 10-year prorated warranty. Max has been tested and listed to UL's 103HT Standard. The manufacturer approves its use for wood, oil, coal, and gas.
The couplers and the chimney's inner liner are made from 304-alloy stainless steel. The outer wall is 434-alloy stainless steel.
Most of the components for SuperChimney Max are the same as those for SuperPro Class-A Chimney. The exceptions are the cathedral ceiling support box which does not have brass trim, the decorator ceiling support and black wall thimble which come with round trim collars with no brass trim, and the trim collar itself which measures 16" round and does not have brass trim.
SuperPro also features mineral wool insulation. This insulation is formulated for optimum performance while dramatically reducing chemically active ingredients. Its provides a thermal delay that resists and contains surges of heat, keeping the outer liner cooler.
The SuperMax couplers are embossed, not cut, to reduce moisture penetration. This greatly increases the longevity of the chimney.
Components, such as flashings, have a galvalume coating which has twice the corrosion resistance of galvanized steel.
SuperMax features twist-lock connections; however, locking bands are recommended at each joint for extra security when cleaning and are required on elbows.
SuperPro Tech Sheet SuperPro Instructions
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