Chimney liner for Kuma Cascade

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junkyard_sal

Member
Hearth Supporter
Jan 12, 2010
29
Baltimore, MD
Hello,

I am installing a Kuma Cascade into a family room fireplace. The fireplace is a straight shot up about 6 feet where it penetrates a flat roof and then extends another 9 feet. It is full brick and clay lined. The clay tiles are 9x18 outer dimensions.

My issue is the lining. Do I need to install an insulated liner? Kuma calls for 6" and that will likely be tight. The damper area will need to be cut or the liner will need to be bent. The chimney is straight I could easily get 12' of solid chimney pipe down before I need a small bend and to get through the smoke chamber and damper to the wood stove.

I got some quotes and 4k seems a bit excessive for a 20' liner and given that it is straight it seems like I could DIY. My stove seller said he would do it for 2k but he hasn't looked at the install and he isn't planning to insulate the liner.

Location is 19096 is someone is local and has a reputable sweep I am happy to get another quote.

Thank you in advance for the help.
 
Hello,

I am installing a Kuma Cascade into a family room fireplace. The fireplace is a straight shot up about 6 feet where it penetrates a flat roof and then extends another 9 feet. It is full brick and clay lined. The clay tiles are 9x18 outer dimensions.

My issue is the lining. Do I need to install an insulated liner? Kuma calls for 6" and that will likely be tight. The damper area will need to be cut or the liner will need to be bent. The chimney is straight I could easily get 12' of solid chimney pipe down before I need a small bend and to get through the smoke chamber and damper to the wood stove.

I got some quotes and 4k seems a bit excessive for a 20' liner and given that it is straight it seems like I could DIY. My stove seller said he would do it for 2k but he hasn't looked at the install and he isn't planning to insulate the liner.

Location is 19096 is someone is local and has a reputable sweep I am happy to get another quote.

Thank you in advance for the help.
 

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Whether an insulated liner is needed depends of the chimney clearance from any combustibles. This looks like an exterior wall fireplace. If so, it must have 1" clearances from any combustibles in order to have an uninsulated liner. This doesn't seem to be the case here.

How well does the fireplace work? Is there any smoke rollout at times? I ask because the house configuration with this fireplace in a one story addition often is a problem for drafting. If it is an issue, an insulated liner will help improve draft a bit.

Note, to help fitting, the insulated liner can be slightly ovalized by a professional and then left round at the insert connection end.
 
Hello,

I am installing a Kuma Cascade into a family room fireplace. The fireplace is a straight shot up about 6 feet where it penetrates a flat roof and then extends another 9 feet. It is full brick and clay lined. The clay tiles are 9x18 outer dimensions.

My issue is the lining. Do I need to install an insulated liner? Kuma calls for 6" and that will likely be tight. The damper area will need to be cut or the liner will need to be bent. The chimney is straight I could easily get 12' of solid chimney pipe down before I need a small bend and to get through the smoke chamber and damper to the wood stove.

I got some quotes and 4k seems a bit excessive for a 20' liner and given that it is straight it seems like I could DIY. My stove seller said he would do it for 2k but he hasn't looked at the install and he isn't planning to insulate the liner.

Location is 19096 is someone is local and has a reputable sweep I am happy to get another quote.

Thank you in advance for the help.
Yes it needs to.be insulated that can easily be accomplished by ovalizing the liner
 
I had the same dimensions for my chimney I ran the solid oval insulated duraliner system then at the bottom they have a section of flex liner you can get that goes from the oval and changes to round to go down through the damper area where it may have a bend. Goes together pretty easy with rivets and has a support plate and bracket for the top was able to do it by myself.
 
Hello,

I am installing a Kuma Cascade into a family room fireplace. The fireplace is a straight shot up about 6 feet where it penetrates a flat roof and then extends another 9 feet. It is full brick and clay lined. The clay tiles are 9x18 outer dimensions.

My issue is the lining. Do I need to install an insulated liner? Kuma calls for 6" and that will likely be tight. The damper area will need to be cut or the liner will need to be bent. The chimney is straight I could easily get 12' of solid chimney pipe down before I need a small bend and to get through the smoke chamber and damper to the wood stove.

I got some quotes and 4k seems a bit excessive for a 20' liner and given that it is straight it seems like I could DIY. My stove seller said he would do it for 2k but he hasn't looked at the install and he isn't planning to insulate the liner.

Location is 19096 is someone is local and has a reputable sweep I am happy to get another quote.

Thank you in advance for the help.
I would go insulated for sure, I have a kuma (freestanding model). May not be a bad idea to look into a damper as well my stove is an easy breather.
 
I would go insulated for sure, I have a kuma (freestanding model). May not be a bad idea to look into a damper as well my stove is an easy breather.
With a 15' tall flue a damper will not be necessary.