Stove info Sierra 8000 Tec Cat stove Wood moisture of 15-22% few splits at 26% but thats just about gone and i only mix it in with my best wood. Right now my glass gets dirty. My chimney is very tall. 2 story house but it dosent extend over the top of my roof. I have a very steep roof and didnt have the money to extend the chimney this year. Though my chimney is about 20ft or more high. I have an decent draft. I get very little smoke spillage. Usually only when the fire is low and i open the door too fast. Now when i load up my stove i burn it hot for 10-15 mins with the door cracked then close it up. reduce the air and pop down the cat. I usually have little to no flame. I dont have smoke coming out the chimney so i know the cat is working but my glass gets dirty. Any way to fix this issue? I think extending my chimney would help but im not sure.