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Burning coal in a woodstove????

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david

09-28-2001 05:39:05




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I have a woodstove that I use every year. I have some coal now available to me that I can have if I want it. I have never used coal before. Is there any reason that I could not burn it in my wood stove?? Does the coal need to be kept dry under a shed?? Does the coal need to burn on a rack above the floor of the stove, or can it reasonably be shoveled in?

Thanks for all input.

David




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John Ne, ...no-way

09-29-2001 15:16:24




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 Re: Burning coal in a woodstove???? in reply to david, 09-28-2001 05:39:05  
Coal burns so much hotter that it will definitely ruin a wood only stove, have the proof out back. The grates will burn through/warp/be destroyed, a coal stove has the shaker grate that is made much tougher. Looking at antique heating stoves, can always tell by the damage to the grates that someone tried coal. Now a coal stove can burn wood just fine. Don't ruin a good stove by trying it. And the pellet stoves, the good ones have a self feeding hopper to feed eight hours of fuel in gradually. John in Ne.

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mike

04-01-2004 13:15:42




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 Re: Re: Burning coal in a woodstove???? in reply to John Ne, ...no-way, 09-29-2001 15:16:24  
you will die from the carbon monoxide don't burn it



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NilsDK

09-29-2001 01:16:02




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 Re: Burning coal in a woodstove???? in reply to david, 09-28-2001 05:39:05  
Hei David I bought a airtight stove two years ago, and it realy works great on coal. In spring and autumn I use firewood but in winter I change to coal. You must have a basket that fits over the air inlet, othervise you can't burn coal and control the fire.
Here in Denmark it has reduced my cost of heating with 75%.
I heat a 175 m3 house here in Denmark with only 0,8 ton of coal during the whole winter, I know it sounds like a lie but it's true.
Good luck. Nils from Denmark

Ps Use small bags to bring the coal into the house and throw it all into the stove, not to have coal dust in the living room, and get into cleaning troubles with your wife :-)

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Al in PA

09-28-2001 17:58:05




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 Re: Burning coal in a woodstove???? in reply to david, 09-28-2001 05:39:05  
The grates on a coal stove allow you to "shake" the ashes down into a lower chamber where you can get rid of them while allowing the stove to burn continuously. Your coal fire burns from the bottom upward: You load additional coal on top of the coal which is already burning. Once you light the coal fire in the Fall it should burn until Spring provided you remember to shake it and add coal every morning and evening. A coal fire takes a little practice to start: You must get a good, hot bed of wood coals established and gradually add a small shovel or two of coal until the coal fire gets going really well. Once it is burning well, just about close the damper and the draft controls. If you get the stove too hot, it will glow cherry red and the life of the grates will be shortened considerably. Your chimney needs to have a very good draft for a coal fire to burn properly - if at all. One last thing, coal comes in different sizes: rice, barley, pea, nut and stove. You must buy the proper size for the grates in your stove. Pea and nut coal are most common for a free-standing stove; rice and barley for a coal-burning furnace with a stoker unit. Stove coal is almost fist size and was used in older coal furnaces.

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William R. Russo

03-12-2006 17:29:59




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 Re: Re: Burning coal in a woodstove???? in reply to Al in PA, 09-28-2001 17:58:05  
I hav an airtight toploading wood stove that has a down draft. Can I add pea coals as I burn wood?? Do I need a dfferent grate?

Thanks

Bill Russo



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Redtractorman

09-28-2001 07:18:27




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 Re: Burning coal in a woodstove???? in reply to david, 09-28-2001 05:39:05  
Make sure your stove is built to burn coal,coal burns alot hotter then wood.You have to have grates for the coal to sit on to get air around the coal.



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Nolan

09-28-2001 06:34:12




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 Re: Burning coal in a woodstove???? in reply to david, 09-28-2001 05:39:05  
I don't have an answer on this one, but like you I'm curious about it, and look forward to seeing some of the replies on the subject.

In researching it, what I've found is that coal apparently burns hotter, and is far more demanding of air flow, using a shaker grate and such. So apparently simply dumping a pile of coal will not work, or at least work right.

Ok, but what about using some coal or shelled corn, as a supliment to the wood in the woodstove? That's my own interest. As in build a wood fire, but put some coal on top of it. Maybe in a metal basket with a grate bottom.

The thing I like about coal is the long burn. I'd like to be better able to keep warmth going throug the night. The corn I like from a handy standpoint (I already use it as feed). Corn's also clean, but it does draw rats.

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paul

09-28-2001 15:48:41




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 Re: Re: Burning coal in a woodstove???? in reply to Nolan, 09-28-2001 06:34:12  
As the other guy said, coal burns pretty hot, I would want to know my stove was built to take the heat. It could warp or weaken the wrong stove.

Without the right airflow, it will soot up & throw out black smoke.

Don't know about mixing it. Dad used to when coal was more common here, but our water jacket stove was built for it. Never burned corn, interested in the corn stoves. I burn a lot of corn cobs as 'tinder' to get the fire going. Whole ears might work ok, I would think shell corn would pool at the bottom & just roat, rather than burn right. I think shell corn also needs the right airflow to get a good clean fire?

--->Paul

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Nolan

09-28-2001 17:48:26




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 Re: Re: Re: Burning coal in a woodstove???? in reply to paul, 09-28-2001 15:48:41  
Well if it's going to soot up and throw heavy smoke, that's no good. Similarly with warping my stove. I can keep on burning regular wood, but I'd sure like to find a way to work in something a little less care intensive. But I'm also not willing to spring the money for a corn stove or such. Ah well.



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Burning Shelled Corn for Heat...

09-29-2001 19:50:40




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 Re: Re: Re: Re: Burning coal in a woodstove???? in reply to Nolan, 09-28-2001 17:48:26  
Northern Industrial is advertising an auto-feeding 'shelled corn-only' stove.. Supposed to need only tubing for a vent (flue)..

There's a link at the bottom of this post. They want a small fortune for it, but the economic comparisons they post on $/BTU for different fuels are pretty convincing.

Looks like we should build some commercial-size
powerplants fuelled on shelled corn.

Link

-- bbott

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