I have been burning for 3 months on and off approx 1.5 cords. With 65 deg temps today i decided to go up and sweep the chimney. The cap had a bunch of glazed buildup on it and the chimney liner had a good amount of buildup in it. My 6" corrugated liner is about 24' after a good sweeping i had about a gallon of what looked like black rice. Question is is this too much after only 3 months and is the consistency due the the corrugated liner? The only shiny stuff was on the cap. I know my wood could be dryer but is this normal for a cat insert? I try to burn between 400-600 deg on the front glass, the cat is clean and the stove only smokes when the temp drops under 300. This cat insert is new to me, not sure what temp to burn at without over firing the cat..............I just don't want problems. What do you guys think?