Good job partner
So far I have converted 2 wood burners to coal.
A co-worker over heard me gloating over my coal burning and asked for advice.
I went to his house and told him how to make his furnace more coal friendly. (Our furnaces require some subtle alterations for a better coal burning experience) He now has 4 tons in his basement
And my uncle, who went balls to the wall and bought this monster boiler (burns buckwheat size coal) - He is heating 3 buildings with it. (his two story home, a shop and a small apartment).