Question about chimney

[JDA1915]

Hello all. I've been lurking on this site for sometime now. I've been around wood stoves my whole life. I'm getting rid of the old death trap logwood 2421. I purchased a used Buck Model 81 well worth the money a couple days ago. My question is I know the Buck calls for a 6" chimney. When I started pulling apart the block off for the fireplace I found that the previous owner of my house actually did a good job and had a 8" fully insulated chimney liner installed the full length of the 25ft exterior masonry brick chimney. My question is will it be ok to do a complete sweep of the existing liner and insert the 6" liner inside of the 8"? I have already figured out how I plan on supporting the 6" liner inside of the 8" I just wanted to make sure I'm not going to cause any issues.

 

[Ctwoodtick]

The pros will chime in with their expertise. My novice advice would be to ensure that the existing masonry smoke shelf, smoke chamber and chimney have been cleared of old creosote.

 

[JDA1915]

The pros will chime in with their expertise. My novice advice would be to ensure that the existing masonry smoke shelf, smoke chamber and chimney have been cleared of old creosote.

Everything was cleaned yesterday. Whoever installed it did a really good job. The fireplace is a monster at 44" w 25" d and 32"h. Even though the Buck 81 is a pretty good size stove it's going to look small inside of it. But only giving $500 for the stove I can live with that.

 

[bholler]

Yes absolutely you can drop a 6" inside that 8". But I would try running it on the 8 first you have decent height so it may be fine.

 

[JDA1915]

Yes absolutely you can drop a 6" inside that 8". But I would try running it on the 8 first you have decent height so it may be fine.

I was hoping you would see this. I've seen a lot of your replies on here and value your opinion. I thought about trying the 8" and just adding an adapter wasn't sure if that would too much draft or not. It gets pretty windy at my place. I might run to Lowe's in the morning to see if they have a 8 to 6 reducer.

 

[bholler]

I was hoping you would see this. I've seen a lot of your replies on here and value your opinion. I thought about trying the 8" and just adding an adapter wasn't sure if that would too much draft or not. It gets pretty windy at my place. I might run to Lowe's in the morning to see if they have a 8 to 6 reducer.

If anything it would be to little draft. But like I said I think it is worth a try.

 

[JDA1915]

If anything it would be to little draft. But like I said I think it is worth a try.

I'll definitely give it a try. Here's a picture of the 81 I got for 500

 

[JDA1915]

If anything it would be to little draft. But like I said I think it is worth a try.

 

[bholler]

Good deal. Is the 81 a cat or tube stoves

 

[JDA1915]

Good deal. Is the 81 a cat or tube stoves

It's a tube stove. It'll be my first EPA stove so I know it'll be a learning curve at first. I know all my wood is seasoned good. I have Locust hedge apple (Osage orange) and other hardwood that has been cut split and stacked for 2 plus years

 

[HomeinPA]

If anything it would be to little draft. But like I said I think it is worth a try.

Ditto - worst case, you may need a stovepipe damper but I'll bet you can control it just fine with the stove controls. Get a stovepipe thermometer.

 

[JDA1915]

Ditto - worst case, you may need a stovepipe damper but I'll bet you can control it just fine with the stove controls. Get a stovepipe thermometer.

I have one that I had on the old puff the magic dragon stove. The new stove is going to be inserted into the fireplace so a damper won't be an option.

 

[Jags]

As bholler suggested, try the 8 inch pipe. With a 25ft run it may be enough to compensate for the reduction in draft caused be the oversized pipe.
You might notice some lazy startups but once the pipe starts to warm the draft will get stronger.

 

[JDA1915]

As bholler suggested, try the 8 inch pipe. With a 25ft run it may be enough to compensate for the reduction in draft caused be the oversized pipe.
You might notice some lazy startups but once the pipe starts to warm the draft will get stronger.

So far it seems to be working good using the 8". I did notice a little bit of lazy start up but figured out if I leave the door cracked slightly for a minute or two it takes right off.

 

[JDA1915]

So far so good running the 8". I can't believe I waited so long to get a newer style EPA stove. I guess I was like every other old timer in being set in my ways and not wanting to try something new and improved. It wasn't as much as a learning curve as I thought it would be but who knows I might be operating it wrong too. From the looks of the secondary burn it looks like it is burning pretty decent to me though.

 

[Ctwoodtick]

Yup, you’re looking good there!

 

[JDA1915]

Yup, you’re looking good there!

This thing really throws out the heat. I laughed at my daughter this morning she was sitting by the stove and when the fan came on it didn't take her but a second to get up and move.

 

[Jags]

Looks good to me. Another tell tale sign of a clean burn is to look at the exhaust. No visible smoke is a good sign of proper operation.

 

[JDA1915]

Some smoke at initial start up and when reloading which is normal or at least I think it is. Once it gets going little to no smoke just heat vapor