So, we've had two half seasons of burning, the past two winters, on our new Kuma Aberdeen stove. It's been AWESOME! Temp's are climbing and we're thinking about cleaning. Nope, we've never cleaned it, or any other stove pipe. We've cleaned a few chimneys, masonry, but never a pipe. It's 6". There are so many cleaning brush kits on Amazon. Any recommendations on a good brand, kit? Our flue is straight up, about 15' from the top of the stove. Of course, we have to clean the stove too, and the Cat. It'll be our first time and a learning process for us. Any guidance is greatly appreciated!