
12/31/10, 09:13 AM
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Join Date: Jun 2006
Location: Kentucky
Posts: 2,341
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Please remember that I'm only discussing Bituminous or soft coal. Here, the price of Anthracite is so close to propane that it's impractical for me to use.
Coal needs underfire air to burn properly, hence the discussion of grates. In my experience, any significant accumulation of ash under a coal bed smothers the fire in short order. That's why coal stoves have shaker grates specifically to remove the ash from under the fire without disturbing the burning coal above. For burning bit coal an overfire air supply is desird as well. It would be opened somewhat for the first 15-20 minutes after reloading to burn off the volatiles from the fresh load of coal and avoid puffbacks. After that they're generally closed so all combustion air is supplied from beneath the grates. Once these volatiles have burned off, anyone passing by my house wouldn't know I'm burning anything, much less coal. The effluent is far clearer than with even very well seasoned wood.
As a child we had 2 coal stoves and one coal grate in our house, 1 in the stripping room, 1 in the milk room and 1 each in two tenant houses. While we switched main house to propane while I was fairly young, I worked with coal heat for many years in the milk room & stripping room. I abandoned coal and burned well seasoned hardwood exclusively until a few years ago when getting up wood became a physical challenge for me. I reviewed all the alternatives and coal won by a large margin pricewise and in the effort required to heat my home. Unless one is using a stoker, coal stoves operate just like wood stoves in that they need no electricity to run. It's not for everyone, but it's certainly worth considering.
Last edited by Stephen in SOKY; 12/31/10 at 09:15 AM.
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