Hello Diana.. the only problem with your coal being wet is if it is so wet that it drains onto the grate, which you described.. What a few forum members do is to put the bags of coal over a bucket [to catch the black water] and poke a hole or two in the bottom of the bag, and let the excess water drain..
The coal itself doesn't absorb any water, the coal is like glass, impervious to water.
The way your stove is running is correct.. the Coal Trol is designed to run the fan and 'wash' all heat off of the stove,, so when the thermostat is satisfied, the stoker is not feeding extra heat to the fire, except enough to keep the fire going. But the fan is still running to wash any residual heat off the stove body into the room.. this air often feels 'cool' to our senses, because it may be lower than body temperature.
You may want to post a question on the 'Coal Trol' forum and ask if they have a setting for turning the fan down some when heat is not being called for.
If your Pocanno is keeping the room at the 73* you have set on the thermostat, then it is doing what it is supposed to.. The extra air circulation may be giving you the feelling of it being cooler. There actually is a bit less radiant heat from the stove because it is being washed by the fan, therefore the surface of the stove is cooler.
The function of the barometric damper is to limit high draft.. you need to set it with a manometer.. Your installer should have done this for you, if you aren't sure, ask them if they did...
Or, get on the list for the Manometer Loaner Program.. PM Matthaus to be put on the list.. the forum has a loaner manometer going from member to member for setting barometric dampers like yours.
Setting the damper too low like .01-.02" can cause condensation in the hopper, too high, over .05" will pull too much heat from the stove.. The markings on the baro are rough settings, you need a meter to set it accurately..
hope this helps.. Greg L