INTEGRITY® Stainless Steel Chimney Liner Systems

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Your fireplace is the focal point of your home and an inviting gathering place for your family and friends. Your fireplace can also be a source of problems. If your chimney is in a state of disrepair, poorly constructed or has an inferior design, your fireplace or appliance can let exhaust gases or ignited creosote into your home. In most cases, your chimney system can be repaired or improved by installing INTEGRITY® (formerly CHIM-FLEX®) America's premier chimney liner system.

INTEGRITY® stainless steel chimney liner is tested and listed by Underwriters Laboratories to the full UL 1777 standard for the US and ULC S 635 for Canada in 3” to 12” diameters so you can install it with confidence. 14”-24” diameters are also available. 

 INTEGRITY® stainless steel liner is the ideal choice for venting wood, coal, gas, oil and pellet appliances. Our liner systems are manufactured from prime US 316L stainless steel. This alloy contains Titanium for high temperature stability, but it also has a higher amount of Molybdenum than the other blends to guard against low temperature corrosion- the ultimate test for liners over time. 

To create a highly flexible, light weight and easier to use chimney liner, INTEGRITY® is manufactured from a .0055 wall thickness. It ovalizes easily too; even at the job site! Perfect for those unexpected situations. It can even be easily taken back to round eliminating the need for costly transition fittings. 

INTEGRITY® stainless steel chimney liner also features a 7 layered seam construction. Strips of 316L stainless steel are brought together, amply overlapped and tightly knurled securing a lifetime of structural integrity. 

Using CAD software and CNC machinery, INTEGRITY® components are simply the best fittings available. They are expertly engineered, here in the USA, to +/- .003 inches for a fit and finish that is second to none. This means the part you purchased last year will fit the same as the part you purchase this year. Our components are also manufactured from the same prime US 316L stainless steel giving you unbeatable protection from the top of the lining system to the bottom. 

INTEGRITY® also carries our exclusive LIFETIME plus transferrable warranty.