?'s on chimney thimble.

?'s on chimney thimble.

PostBy: bverwolf On: Sat Jul 10, 2010 10:06 pm

Hey everyone. I have built a block chimney with a clay liner. I have a question regarding the thimble in which you insert the pipe connection from your stove. I have a hole cut in the clay liner that is the size of my stove pipe. My ? being... What do i use for a thimble? I have seem a few chimneys around here that look like they have just used a short piece of stovepipe. I would rather not do that as I will be burning coal and I don't want it to rust out right away. It seems like I've heard of a clay thimble?? I'm just not familiar enough with chimney building to know what to use?

Ben
bverwolf
 
Stove/Furnace Make: Vogelzang
Stove/Furnace Model: Norseman 2500

Re: ?'s on chimney thimble.

PostBy: Poconoeagle On: Sat Jul 10, 2010 10:08 pm

correct use a clay thimble!
Poconoeagle
 
Stove/Furnace Make: Buckwalter & Co. , EFM520
Stove/Furnace Model: No. 28 Glenwood 1880, Alaska

Re: ?'s on chimney thimble.

PostBy: wsherrick On: Sat Jul 10, 2010 10:33 pm

Poconoeagle wrote:correct use a clay thimble!


A clay or Terra Cotta Thimble is the only way to go. It is very easy to insert it and then put mortar around it to hold it in. Any decent masory supply place or brick yard should have a stock of them in various lengths and sizes.
wsherrick
 
Hand Fed Coal Stove: Glenwood Base Heater, Crawford Base Heater
Baseburners & Antiques: Crawford Base Heater, Glenwood, Stanley Argand
Coal Size/Type: Chestnut, Stove Size


Re: ?'s on chimney thimble.

PostBy: bverwolf On: Sat Jul 10, 2010 10:46 pm

Thanks everyone for your replies. I just did a search on chimney thimble and found a link to a you tube video that shows how to install a clay thimble. The guy actually has several videos on chimney related things. Search Chimney King on you tube and you will find them.
Ben
bverwolf
 
Stove/Furnace Make: Vogelzang
Stove/Furnace Model: Norseman 2500

Re: ?'s on chimney thimble.

PostBy: oliver power On: Sun Jul 11, 2010 7:32 pm

I'd frame in for chimney block on edge. Install square terra-cotta/clay flue through chimney block, and round terra-cotta/clay through square. The round by itself will get hot.
oliver power
 
Stoker Coal Boiler: KEYSTOKER Kaa-2
Hand Fed Coal Stove: Hitzer 50-93 & 30-95, Vigilant (pre-Vigilant-II)
Baseburners & Antiques: MANY (Mostly when burning wood)
Stove/Furnace Make: HITZER / KEYSTOKER
Stove/Furnace Model: 50-93 & 30-95 , Kaa-2

Re: ?'s on chimney thimble.

PostBy: bverwolf On: Tue Jul 13, 2010 11:35 pm

So, your saying frame into my wall with a chimney block on its side attached to the chimney that extends through the wall into the house. Install a square terracotta liner. Then install the 8" round that I want to use right? Then no insulated thimble through the wall. Just hook up the single wall to the 8" round thimble like a normal chimney that is installed inside your house. Correct me if I'm wrong.

Ben
bverwolf
 
Stove/Furnace Make: Vogelzang
Stove/Furnace Model: Norseman 2500

Re: ?'s on chimney thimble.

PostBy: oliver power On: Wed Jul 14, 2010 7:03 am

bverwolf wrote:So, your saying frame into my wall with a chimney block on its side attached to the chimney that extends through the wall into the house. Install a square terracotta liner. Then install the 8" round that I want to use right? Then no insulated thimble through the wall. Just hook up the single wall to the 8" round thimble like a normal chimney that is installed inside your house. Correct me if I'm wrong.

Ben
That is correct......Of the different ways I've done this, and seen it done, in my opinion, the way I explained is the best. There are other ways to go through the wall. If it were my own masonary chimney, I'd do it as I explained. On the other hand, I would not install an exterior chimney. That is why I put the metal chimney in my place. I've got the perfect clearances to go straight up through a closet, and out the roof, without any modifications to the structure. The problem is, I'll be replacing the metal chimney in another year or so. I sure hate the thoughts of putting another metal chimney back in. But, it fits my situation perfect.
oliver power
 
Stoker Coal Boiler: KEYSTOKER Kaa-2
Hand Fed Coal Stove: Hitzer 50-93 & 30-95, Vigilant (pre-Vigilant-II)
Baseburners & Antiques: MANY (Mostly when burning wood)
Stove/Furnace Make: HITZER / KEYSTOKER
Stove/Furnace Model: 50-93 & 30-95 , Kaa-2

Re: ?'s on chimney thimble.

PostBy: bverwolf On: Thu Jul 29, 2010 1:48 pm

Okay guys, I have another question. My Chimney is an 8" chimney. Its not actually 8 inch, its an oval flue liner that I was told was equal to an 8" round flue. My stove has a 6 inch outlet. For the past year or so, I have used a piece of 8" double wall insulated pipe for my thimble into the house. It has worked fine, but I would like to fix it right before this winter as I have stated in my posts above. I thought I would stay with an 8" thimble as I thought it would give me a little extra room for fly ash buildup as its a horizontal run. I recently decided to tackle the project and started getting supplies together. I have everything except for an 8" round clay thimble or flue liner. I have looked everywhere around here and called all around in about a 200 mile radius and have had no luck in finding 8" round clay liner. I have found 6". Sooo..., my next question being, "Should I just go with the 6" thimble instead?" The horizontal run will be about 16".

Ben
bverwolf
 
Stove/Furnace Make: Vogelzang
Stove/Furnace Model: Norseman 2500

Re: ?'s on chimney thimble.

PostBy: Rob R. On: Thu Jul 29, 2010 1:55 pm

Keep calling, someone should have an 8" clay thimble. Here is a list of dealers for Superior Clay products in MT: http://www.superiorclay.com/dealermt.html
Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Coal Size/Type: Lehigh Rice
Other Heating: Dad's 1953 EFM Highboy

Re: ?'s on chimney thimble.

PostBy: coaledsweat On: Thu Jul 29, 2010 7:36 pm

bverwolf wrote:I thought I would stay with an 8" thimble as I thought it would give me a little extra room for fly ash buildup as its a horizontal run. I recently decided to tackle the project and started getting supplies together. I have everything except for an 8" round clay thimble or flue liner. I have looked everywhere around here and called all around in about a 200 mile radius and have had no luck in finding 8" round clay liner. I have found 6". Sooo..., my next question being, "Should I just go with the 6" thimble instead?" The horizontal run will be about 16".

If your stovepipe is 6", I would go with the 6" thimble. I would think a 6" stovepipe feeding an 8" thimble would actually slow the gas speed and drop more fly ash before the turn at the chimney. 16" is a fairly short run of horizontal.
coaledsweat
 
Stoker Coal Boiler: Axeman Anderson 260M
Coal Size/Type: Pea

Re: ?'s on chimney thimble.

PostBy: bverwolf On: Thu Jul 29, 2010 10:10 pm

Coaledsweat, I never thought of it that way. A 6" pipe would have more velocity going through it than an 8". I think I might have no choice buy go with the 6" anyways. I have called everywhere from miles around and noone has a 8" round clay liner or thimble.They can get them, but they would have to order in a pallet and don't want to have that many on stock. Several places told me that there isn't much of a demand for the round in this area. They say everyone uses the square or ovalled liner. They said that the round is more prevalent in the extreme northwest u.s. Not sure if they're filling me full of you know what or not, but I suppose building styles could be different I guess.
bverwolf
 
Stove/Furnace Make: Vogelzang
Stove/Furnace Model: Norseman 2500

Re: ?'s on chimney thimble.

PostBy: 2001Sierra On: Thu Jul 29, 2010 10:26 pm

6 inch thimble is the way to roll. Also refractory cement is also recommended at the joints. I did mine 29 years ago and looks like the day I installed it. The fly ash should collect at the base where the thimble intersects. I can easily go an entire season without any excess accumulation. On hand feds turn down the air supply while shaking helps, on a stoker you have no choice.
2001Sierra
 
Hot Air Coal Stoker Stove: Keystoker 90 Chimney vent
Coal Size/Type: Rice
Other Heating: Buderus Oil Boiler 3115-34
Stove/Furnace Model: Keystoker 90 Chimney Vent