Liner Thickness Question

[leeave96]

I am doing some reading on some of these chimney liners and am amazed at how thin they are - some at .005 inches, others at .006 inches.

I got my calipers and took a look-see at how thin .005 is and a piece of paper is almost at thick!

How tough are these liners? It is amazing that you can replace a clay liner that may be over 1/2 in thick with such thin material.

Do these things ever get punctured when cleaning with a brush? I assume they last for many many years too.

Just courious.

Thanks!
Bill

 

[laynes69]

There are many people with flex liners that don't have any problems with them. For others I have read about cutting some with a box cutter. I was a machinist for some years and I choose to go with a 22 gauge rigid liner. I'm sure the flex would have been fine, but I didn't trust it. As long as the liners aren't abused they should last for years.

 

[98dingo]

The liners, if installed correctly, are very durable. They can withstand 2100 degree plus temps numerous time. Try that once with a clay tile! Don't let the the thickness throw you off on what they are meant to do. Yea, its thin and you can easily stab a snips or screwdriver thru them, but the aren't engineered to withstand that. They are made to function as a chimney system and they do a fine job of it. Most of the better ones also have lifetime warranties.