Incredible deal on chimney liner - need some advice quick!

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KennyK

Feeling the Heat
Oct 26, 2011
351
Boston
Hi All,

I recently scored a great deal on a Jotul F100 and now have an incredible offer to purchase a never-used chimney liner for a very low price from someone who bought it and ended up not doing his install. Here's what I know - it's a 30 ft. 6inch rock flex liner that the owner purchased a few years ago from Rockford Chimney Supply for about $700 (according to him) including a terra cotta cap, pulling cone, and round rain cap. He says it's steel, but I asked if he knew if it was 316 or 304, and he wasn't sure - he did send me a photo of an info sheet that came with it that said it was for use with wood stoves and other heating devices. He's selling it incredibly cheap and I have first dibs, but it is about an hour and 45 minutes from where I live (well worth the trip if it's what I need).

Now, I think the 30 foot length is be what I need. I haven't measured down my chimney, but I did measure a straight shot from the height of my lintel to my roof, and estimated a little extra approximating the distance to the top of my chimney - my measurement came out to 28 feet, so I think I should be good. As it's wet out, I don't foresee myself going onto my roof and measuring down my chimney before I need to move on this.

My install is for a Jotul F100, and I plan on going out of the back with some double walled pipe and up my fireplace chimney.

Now for my questions -
1) Does the chimney liner run the full length from the top of my chimney to just below where my flue opens, and at that point I can connect with the double walled pipe? (This is what I based my measurements on).

2) If the liner ends up being just a couple feet short, is there any way to deal with that, or does it mean I can't use it?

3) Does Rock Flex signify what kind of steel it is/if this is good for a wood stove? I plan on insulating whatever the thickness.

Any other things I should be thinking about would be helpful. The price is very low and I do want it - I figure in a worst case scenario, I can always resell. Thoughts?

Thanks!
 
The liner can be spliced if necessary. Usually you want it to reach down to below the damper where you transition to a tee fitting with a cap on the bottom. The snout of the tee is extended, usually with single-wall pipe to the stove's rear exit flue.
 
304, 316, meh, it will work for a wood stove either way, I'd go get 'er!
 
KennyK,

I work with Rockford Chimney Supply and we sell (and always have sold) 316 stainless steel. Hope that helps with your decision!
 
As long as it is either 316 or 304 you will be fine
 
You didn't tell us the price but If its good I'd go get it.
 
For that length, wouldn't insulated liner be better ?. I thought I read here that for the taller Chimneys, insulated is the way to go to keep the flue temps up for less creosote ?
 
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