lsayre wrote:From a surface area perspective, a basketball sized chunk of coal doesn't seem like it would be the best choice. One or two of those would fill the entire firebox of even a large stove. The firebox on the DS-1600 is 16" x 20" to my knowledge. Would you break up the basketballs and retain the softballs?
When you put the large lumps of coal in the stove, the heat quickly causes the large lumps to crack into many striations. All you do is strike the lump with a poker and it falls apart into a hundred pieces.
By the way, here is one of the best stoves available to burn Bituminous coal. This is a Hickory Glenwood with an indirect backpipe. It has a very large loading door and no windows to soot up. You can't get a better stove for this use.