Split Vein specializes in "reclaimed coal." Mostly from the old Glenn Burn culm bank in Shamokin. There was a reason that it was discarded back in the day.
There is nothing wrong with your equipment. It's their coal. It's loaded with rock, trash, and dirt. 60% plus ash is not unheard of with reclaimed coal.
It's cheap and you will get what you pay for.
Cheap coal= lots of ash=very hard to burn. When I tried burning the rice coal it wouldn't even burn. I had to mix it 25/75 with good coal from either Harmony in Mt. Carmel or Lenigs. If you don't mind cleaning it yourself and emptying the ash bucket 5 times more than normal buy the cheap cheap reclaimed coal.