Found a source for lump coal in New Lexington Ohio known as Oxford Resource Partners or better know as the Tunnel Hill Rd mine. $75 /ton for lump coal. I've burned Kentucky lump in the past and with only one load of the new coal in the boiler so far I can say this coal is no worse on the initial firing than the Kentucky Lump as far as smoke/odor. The main difference so far is the color of the smoke; KY lump is more yellow/gray and this is a gray/dark gray, and the price is much better! On the second cycle of the boiler, the smoke was minimal. Will know more in the morning when I see what is left on the grate.