I spent the day insulated chimney liners, I am not 100% happy with the liners I purchased but its a little late now. One liner is FireFlex Smooth Wall 316Ti .013 thick and the other is .006 durvent duraflex 304ss. After working with this I wished I would have done more research. Both seem very easy to kink.
What is the best chimney liner?
- Thread starter john26
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A medium or heavy weight single wall liner is your best bet from what I have read. Mine is rigid single wall but that seems to be less common.
Yeah both are light wall liners and will kink easily. I really don't like the smooth wall stuff
These folks sell decent liners. Get it in medium or heavyweight.
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www.rockfordchimneysupply.com
www.woodlanddirect.com
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Rockford Chimney
The original and best source for chimney liners, flue caps & more. Made in USA with stainless steel. DIY videos, articles, a helpful staff & free shipping!
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Shop Chimney Pipe, Caps, Liners, & Dampers | WoodlandDirect.com
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Ok didn't know they made that. But all I see is rigid.
Excel rigid liner is what we had for the old insert before I tore out the fireplace. It was a nice, tough liner. So tough that when we went through an earthquake the chimney top rotated 45º, but was held in place by the liner and the siliconed top cap. 
The neighbors' chimney tops collapsed.
The neighbors' chimney tops collapsed.Similar threads
