THIS STOVE BURNS COAL VERY WELL. I am the OP, and got the stove burning coal now. After reading all the material and watching YouTube, I did stumble for a couple of days until finally getting it to burn good.
I originally started the stove 3 days in a row only to have it go out after about 8 hours. It would leave large burnt clinkers on the grates mixed in with fine ashes. Again, I am building this house so I am not there at night, I leave about 6pm and return by 7am only to find it cold. I realized that I had the damper wide open, and the combustion air intake wide open. Too much air I suppose.
This morning I cleaned out the whole thing and started from scratch. Built up a kindling fire, then added some hardwood fire wood and got that good and hot. Once the firewood turned to red coals, I added coal slowly but did not cover all the fire, left some visibly burning. Then I added more coal 20 minutes later and turned down the combustion air and closed the damper 90%.
Great result. Stove burned nice and clean all day (10 hours). Before I left I opened up everything again, shaked the grate, and added about 30 pounds of coal. Think I have it right this time but tomorrow morning will tell the tale. I'll let you know.