Chimney Liner question for Tarm

[chuck172]

What's involved in relining a 8" sq. Masonry chimney with 6" round SS.?
The chimneys about 25' high and on the exterier of the house. I can get at it easily from the roof.
Can I do this project alone and about how much will it cost?

 

[begreen]

Yes, you can do this yourself, though it will be easier if you have a helper. If the chimney is a straight shot then you have the option of going with rigid pipe. If offset, flexible stainless would be best. For an exterior chimney you'll want to insulate the liner. Consider dropping down to 5.5" liner and insulating it. Be sure the chimney is cleaned first before installing the liner.

Is this an exterior fireplace or just a chimney? If this is on a fireplace, adding a blockoff plate will help keep the heat losses down.

There are a lot of threads here about DIY lining. Some with pictures. I'll see if I can dig up a couple.

 

[begreen]

Here's a couple links to get you started:
https://www.hearth.com/talk/threads/10962/
flex liner installation with pics:
https://www.hearth.com/talk/threads/10193/

 

[chuck172]

The chimney will be for a Tarm wood boiler. Tarm is clear requires a 6" chimney. I don't know if I can go down to 5.5"

 

[begreen]

Ah that's an important piece of information. I've moved this over to the boiler section so that you can get a good answer from the boiler experts.

 

[free75degrees]

The chimney will be for a Tarm wood boiler. Tarm is clear requires a 6" chimney. I don't know if I can go down to 5.5"

Which Tarm are you using? In the diagram below from the Tarm USA site they recommend an 8 inch round or 8x8 chimney for the solo 30 and 40.

(broken link removed to http://www.woodboilers.com/_img/chimney_solo_plus.gif)

 

[chuck172]

Probably the Solo 40. People at Tarm told me to make sure I reline with 6" SS.
They say it's real important.
I wonder if insulation is justified here, don't know if 5.5 will work. I can call

 

[begreen]

It will depend on what specific model you buy. The website specs say 6" round for the Tarm Solo Plus MkII 40. If that is what your dealer says, stick with it. PM Webmaster about the insulation.

 

[chuck172]

Does Webmaster sell insulation or will he advise me on it?

 

[bbb123]

I came to the conclusion that I have to reline my chimney also, I believe it's 8x8 clay with brick exterior. Its 80 years old and I'm seeing some black streaks on brick. Its clean inside, 1/2 of chimney is inside top half is 3/4 exposed. I'm following this thread it will be a DIY project.

 

[chuck172]

bbb123 Were you using the Tarm solo 40 with the 8x8 clay? The Tarm people told me not to do that. My chimney's in good shape.

 

[webbie]

A 6" rigid would be best - if chimney is interior then insulation would not be as important - if exterior, you could get away with pouring thermix (a dry or semi-dry pourable insulation) down around the liner after installation. I would not use the 5.5" and not use flex (if you have a choice). Use Rigid, like Heat-fab etc.

 

[bbb123]

Yes I am. I am not saying its a good thing to do but it has had an old Tarm, wood stove, and the new Tarm hooked up to it over the past 30 some years. It has never been swept as far as I know. I checked it 7-8 years ago when I hooked a wood stove up to it was clean. I checked it 3 years ago when I hooked up the new Tarm and this past fall still nothing inside but the morter is loosining up and that black stain on the outside leads me to believe I'm getting some condensation in it. I am going to research the Heat-fab the little bit of research I have done is leading me to rigid. I do have some excess morter between the clay tiles but its fairly straight.

 

[chuck172]

bbb123, Looks like you have the exact setup I want to get. Solo 40 800 gal storage. Let me know what you decide to do with the chimney. My 8X8 masonry chimney is in good shape but I was told to go with a 6" SS liner. I'd like to know if anyone knows who has good prices.

 

[begreen]

Does Webmaster sell insulation or will he advise me on it?

Just advice here. Craig (Webmaster) used to sell Tarms. That's why I suggested contacting him.

 

[sweetheat]

I'm looking at the same thing as you guys. I've a 12X12 masonry flue tile inside a brick chimney 30 feet tall. I will install 6" ridgid heat-fab for the Tarm solo 40. I'll insulate with their 2 foot wrap insulation as I install it in my chimney. I'll include 5" heat-fab for the jotul 118 on the 2nd floor. sweetheat

 

[bbb123]

I'm looking at the same thing as you guys. I've a 12X12 masonry flue tile inside a brick chimney 30 feet tall. I will install 6" ridgid heat-fab for the Tarm solo 40. I'll insulate with their 2 foot wrap insulation as I install it in my chimney. I'll include 5" heat-fab for the jotul 118 on the 2nd floor. sweetheat

Sweetheat did you get your liner in yet? I'm curious how it works I finally measured mine it's 11 inch square inside by 32 feet. That gives me a few more options.

 

[sweetheat]

Hi bbb123. it's not in yet but before august I hope to have everything installed. I keep shopping around for the best prices. when i google it i see their are 2 online ordering outfits and 2 phone in outfits selling the heat fab rigid liner. I may get a better deal from my plumber down the road. It's made in western mass, do you or anyone on these forums have a recommendation for best purchase prices? i'm real close to buying 6" heat fab/w insulation. sweetheat

 

[gorsuchmill]

I, too, am awaiting a Solo 40 and have an existing interior flue lined with 8x8 clay tile. I was under the impression that would suffice, but am reading here that lining makes more sense. If so, I could send a 6" SS liner to the thimble, but what would I do from there? I'd hate to have to bust out a bunch of stone in order to get a new T in place.

Thanks.

Lee

 

[Ron Lloyd]

I’m getting some mixed signals on the chimney issue also. I took it from the Tarm literature that you could use standard chimney block with a clay tile liner. They did recommend that it be an interior chimney. I was planning on constructing a new cement block chimney (inside the building) with an 8” round liner. Will that be adequate? What kind of problems, if any, can I expect with this type of chimney?

Ron

 

[Ron Lloyd]

I’m getting some mixed signals on the chimney issue also. I took it from the Tarm literature that you could use standard chimney block with a clay tile liner. They did recommend that it be an interior chimney. I was planning on constructing a new cement block chimney (inside the building) with an 8” round liner. Will that be adequate? What kind of problems, if any, can I expect with this type of chimney?

Ron

why not go with class a chimney? insulated meatlbestos type.

I guess familiarity would be my main excuse for leaning toward block and clay liner. I’ve never worked with the stainless stuff and I’m under the assumption that it would be a fair bit more expensive. Has anyone already done a price comparison for these two options? I’m looking at about a 25’ chimney.

Ron

 

[sweetheat]

hi all, here is what has happened to date with the stainless liner. after extensive research and many phone calls and e-mails I've decided to purchase the selkirk heatfab 6" saf-t-liner 304 stainless steel. My cost before install is about $1350. Online is a big runaround and will probably cost you more. order from a local heatfab dealer. Tarm recommends a 6" flue for the solo40. They say 8" flue tile is ok. Anything bigger needs a 6" straight wall stainless (class A) liner pipe. In my case I've a 12X12 clay tile which is really 11.5X11.5 Heatfab sells everything necessary for a complete reline. Getting the dimensions for the tee's is necessary to figure the total length to the top of chimney. the bottom cap adds 3" You may need to purchase the removeable tee for install. If your doing a reline you need to be exact, so remember you lose 2" every section of pipe. I contacted heatfab project engineer bert obrien at direct 413-676-3798 he sent me drawings of different tee's. his e-mail is hobrien@selkirkcorp.com I hope to install before august. the tarm 40 is still waiting install but will be fired up before fall. I hpoe to post some pictures. good luck sweetheat

 

[pybyr]

Ayayayay! Please fill me in on what this all is about. While I am going with an Econoburn 150 rather than a Tarm, they are pretty close cousins, design & operation- wise. I have a chimney that was built from ground up in 1999 with 3 separate 8 inch round tile lined flues (one for oil furnace, one for wood cook stove, one for wood furnace, now to be replaced by gasification boiler), and the bottom 2/3 of the 24+ height above the furnace is through heated space. I know that too big a flue is a bad thing, in terms of a drop in velocity and resulting condensation of moisture and creosote, and my understanding is that round flues draw better and condense less than square flues (which is why I was a stickler about using round tile liners even though they were considerably harder to get) but PLEASE tell me I don't need to consider re-lining my not-so-old good condition chimney with a smaller diameter stainless liner just because I am converting over to a wood gasifier! Or, if I am really courting trouble using an 8 inch round tile lined chimney with a gasifier, please fill me in so I can begin to plan what I need to do or deal with... Thanks

 

[sweetheat]

Hi Trevor: You are good to go with what you have there now. 8" round will work for your econoburn. I've got to reline with 6" 304 stainless pipe because my chimney is 12X12 square flue tile. To big for the tarm. It is the only way I can do 2 wood burning stoves in 1 chimney and still be compliant with NFPA 1777 . I will use a 6" stainless for the tarm and 5" stainless for the jotul 118B on the 2nd floor. Hope this helps. sweetheat

 

[pybyr]

Phew- thanks Sweetheat- I was temporarily under the impression from some of the posts in this thread that perhaps the relative efficiency of the gasifiers required stainless to deal with potential condensation. Thanks