First, welcome to the Hearth. You've found the best place possible to get help for your issues.
I'm curious what kind of wood you have. If it's softwood and you're leaving the draft open too long, the wood will be gone before you know it.
Not to beat a dead horse (sorry Dixie), but it takes a LOT of energy to burn/boil off the moisture, and it's not going to heat your house while doing it.
I don't have an EPA stove, but had the same problem you're having when we started burning. Got the fire going great with the door cracked open, then it died as soon as the door was closed. This would go on for a while until the moisture was down, then the stove would take off. By this time, not much was left of the wood and we got poor burn times.
Classic wet wood syndrome. Most of us have been there.
To get rid of the coal excess, rake them to the front of the stove, then lay a smallish piece of wood E/W across them. Give the stove some air, and they'll burn down while adding heat to the space.
Stick around a while, you'll be as
batty knowledable as the rest of us.
That's all I got, for now.