The matte stove is going to smell for the first few fires. It has a lot more paint surface than the enameled units. That looks like a small load of wood. I'm not sure that is going to get the insert hot enough. Do you have a thermometer to measure the actual stove top temp? The draft port screw looks like it should have a nut on it to lock it down, but don't lose any sleep over this. Unscrew it tomorrow and take it to the local hardware store and get a matching nut.