Standard WindBeaters work great on masonry and class-A chimneys but they are only designed to fit on class-A chimneys with solid-pack insulation. This model however is designed to fit on 6" inside diameter double or triple-wall air-insulated class-A chimneys or can be used with solid-pack pipe with the insulation exposed. The WindBeater cures most wind-related backpuffing problems. The WindBeater is made of 24-ga. 304-alloy stainless steel. To install slide the WindBeater into the pipe and seal with a bead of high temperature silicone sealant. Lifetime warranty.
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