Burning Bituminous : Round II

Re: Burning Bituminous : Round II

PostBy: EarlH On: Tue Dec 11, 2012 10:22 pm

Your chimney is supposed to have that crook in it. They built those like that to knock embers back down so you don't set your roof on fire with them getting sucked up the chimney. It's not so much of a problem with coal though, but could happen with a lot of kindling. Looks like you are having some fun with that thing. Sure is a nice way to heat the house once you get the hang of it.
EarlH
 
Baseburners & Antiques: Favorite 261, Columbian Joy A2
Coal Size/Type: Favorite-16" firepot; Columbian Joy-12"

Re: Burning Bituminous : Round II

PostBy: LDPosse On: Wed Dec 12, 2012 12:01 am

EarlH wrote:Your chimney is supposed to have that crook in it. They built those like that to knock embers back down so you don't set your roof on fire with them getting sucked up the chimney. It's not so much of a problem with coal though, but could happen with a lot of kindling. Looks like you are having some fun with that thing. Sure is a nice way to heat the house once you get the hang of it.


I have wondered about hot embers blasting up the chimney during a really hot fire.. Not so much worrying about my roof, which is metal, but I have several big trees not too far away.
LDPosse
 
Stove/Furnace Make: DS Machine
Stove/Furnace Model: DS1500, Kozy King 100

Re: Burning Bituminous : Round II

PostBy: franco b On: Wed Dec 12, 2012 12:26 am

EarlH wrote:Your chimney is supposed to have that crook in it. They built those like that to knock embers back down so you don't set your roof on fire with them getting sucked up the chimney. It's not so much of a problem with coal though, but could happen with a lot of kindling. Looks like you are having some fun with that thing. Sure is a nice way to heat the house once you get the hang of it.

Thank you so much. I have wondered for years why chimneys were built that way.
franco b
 
Hand Fed Coal Stove: V ermont Castings 2310, Franco Belge 262
Baseburners & Antiques: Glenwood Modern Oak 114
Coal Size/Type: nut and pea


Re: Burning Bituminous : Round II

PostBy: rockwood On: Wed Dec 12, 2012 1:18 am

Interesting, I had never heard that. I thought the reason was so the chimney would penetrate the peak so there would be less of a chance for leaks around the chimney flashing...?
I've never seen an offset or corbelled chimney that didn't exit the roof at the peak. Has anyone seen one?
rockwood
 
Hot Air Coal Stoker Furnace: Stokermatic coal furnace
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Baseburners & Antiques: Malleable/Monarch Range
Coal Size/Type: Soft coal: Lump and stoker (slack coal)

Re: Burning Bituminous : Round II

PostBy: Berlin On: Wed Dec 12, 2012 8:15 am

rockwood wrote:Interesting, I had never heard that. I thought the reason was so the chimney would penetrate the peak so there would be less of a chance for leaks around the chimney flashing...?
I've never seen an offset or corbelled chimney that didn't exit the roof at the peak. Has anyone seen one?


Yes, I have, but it was still corbelled toward the peak. That makes sense though, you will produce turbulence and higher and lower velocity areas where the corbelling is especially on an unlined stack and this will have the effect of dropping much of the particulate (glowing or otherwise) out of the exhaust stream.
Berlin
 
Hot Air Coal Stoker Furnace: Will-Burt Combustioneer 77B
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