Hi all! This is my first season with my BKK and I've been loving it..... until now. Slowly but surely I've been getting a little more spillage in the house until the point where I cannot crack the door without getting a smoke smell. I assumed it was the chimney so today I swept it from the inside. There's snow and ice on the roof so I couldn't make it up to clean the cap, but I did get quite a bit of creosote from the flue. I put it all back together, and I'm still getting spillage! Any ideas? Another thing I've noticed is that even with the t-stat wide open, I'm not getting any flames in the box. Maybe it's related? Thanks guys!