Quote for flex liner. Single ply ok?

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JA600L

JA600L

Minister of Fire
Nov 30, 2013
1,288
Lancaster Pennsylvania
I stopped by a local stove shop and inquired about having a stainless liner installed. They told me they install single ply liners and it would cost under $1000 during summer months. Does this sound like a good plan? It is an 8x13 exterior masonry chimney clay lined. I will be hooking the Ideal Steel into this.
 
Sounds like a good price. How tall is the chimney and does that include a good cleaning first?
 
I need to do a final measure but my rough guess it 25-30ft. I will need to ask them if this covers cleaning. I was also thinking about insulating the liner,, any thoughts?
 
So yea for 25 feet that is a steal compared to what some estimates have been... I think the ideal only needs a 6inch liner correct? That SHOULD leave plenty of room for insulation in a 8 inch flue. I would definitely go with insulation given your setup (exterior chimney).
 
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I actually would be a little concerned due to how low the price is. For a 25+ foot chimney under 1000 is extremely low i would make sure they spell out exactly what they are going to be doing and with what materials. And yes insulate it for sure
 
The $1,000 for an install sounds like a good price, I got a quote for $60 per foot - $1,500 and that included the liner kit and install, no insulation. If you have an 8" x 13" clay flue, I'm not sure you will have that much room for insulation on the smaller side of the flue since it will be less than 7" and the liner is 6.25"
 
I'm in your area, and the parts alone for my liner ran almost $750. Assuming you were quoted correctly, the price seems a steal.
 
Yes make sure you use insulation. That price doesn't sound like it included it, too low. I would get everything spelled out on the estimate, make sure they are using all the right components, use insulation (1/2") and includes a tee, if this is not or an insert. Some sweeps like to just bend the liner around. Not the right way to do it.
 
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chimneylinerjames said:
Yes make sure you use insulation. That price doesn't sound like it included it, too low. I would get everything spelled out on the estimate, make sure they are using all the right components, use insulation (1/2") and includes a tee, if this is not or an insert. Some sweeps like to just bend the liner around. Not the right way to do it.
Click to expand...

Yes, I was VERY surprised when I got an estimate (last year) on a liner install and the "pro" installer didn't include a TEE in his price. I asked why not? He said they just bend the liner at 90* and come through the wall._g!!!.

OP: Do the insulation if you have room. They also make a 1/4 inch wrap if all else fails. (better than nothing).
1/2 inch is best!
 
I feel that all liners should be insulated for performance and safety reasons. One major thing to check when it comes to insulation is whether or not you have proper clearances from the outside of the masonry. For an internal chimney you need 2" to combustibles the whole way up and for exterior you need 1" if you don't have this you need to insulate with either 1/2" blanket or 1" of pour in. And like everyone else said unless it is going onto an insert you need a tee as well.
 
chimneylinerjames said:
Yes make sure you use insulation. .
Click to expand...

Would pour-in stuff (vermiculite I think? )be a good option here, due to the narrow space on 2 sides and the extra space to fill on the other 2?
 
The pour in stuff is a mix of vermiculite and cement and it will help but you need 1" of that insulation all the way around to get a zero clearance rating to the exterior masonry. In this case that could probably be accomplished by ovalizing the liner we would normally break out the tiles in order to get enough room. But our price would be a bit above the $1000 quote partly due to the fact that for wood we almost always use heavy wall flex and probably our cost on the materials would be at or over $1000. I am by no means saying that the light wall stuff is no good there are allot of them out there preforming very well. We just think that the increase in durability is worth the increase in price and that is what we spec most of the time. Sorry i got off topic a bit.
 
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