Please post in correct forum, this wasn't even close.
Feedback isn't for coal or any other heating related issues.
What's this button do? How do I...? How come....? Please no questions about coal, this is for forum questions, suggestions or comments only.
Moving it to it to the hand fired coal forum considering the manufacturer told you it would burn coal. Post picture of it, one of the big differences between a coal and wood stove is coal needs air from the bottom which makes woods stoves unsuitable for using coal.