Question on Coal Sizes

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bergw
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Post by bergw » Sat. Aug. 18, 2007 11:41 pm

Why is it called stove sized coal if nearly all stoves use nut/pea?

do larger sizes burn faster or slower then smaller sizes?


 
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coaledsweat
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Coal Size/Type: Pea

Post by coaledsweat » Sun. Aug. 19, 2007 7:12 am

I think the names come from way back when they first started to burn anthracite. There were no mines or equipment, you burned what you could scrape together from exposed seams. The bigger chunks were easy to get around then the small stuff and could be burned in the crude stoves of the day. As stoves improved the sizes got smaller. The stuff that runs in stokers today was just scrap in the old days because if you put it in your stove it would just smother the fire.
It burns hotter and faster due to the fact that the bigger size means more air can pass though the bigger gaps of air between the chunks of coal. As the coal gets smaller in size, the gaps of air between the pieces get smaller. Think about the air differences in a bucket of rocks and a bucket of sand, get the picture?

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