Well finally decided to clean the flue and remove the cap for the winter. I ended up a small coffee can with about an inch of flour like powder in it then just tossed it back in the stove to burn when I start a fire. I don't think thats bad at all considering it hasn't been cleaned since last november with it burning 24/7 in the winter. Didn't get to get the flue cleaned until around 5:00 this evening then split some of 2014-2015 white oak and didn't get a fire going until 6:30 and it was only 66 in here. Got her cranking again at 700 and house is warming up fast almost 80 in here now. Everyone please remember to clean/check your flue on a regular basis. It only take a couple of seconds to check the flue. I rather lose a few seconds of my time than my house due to a flue fire