Glad you found the site and are willing to answer questions. I just drained my 4400 and refilled with new water. When I warm the stove before adding the treatment I build a small fire with sticks and paper so as to burn off some of the buildup inside. Last year I scraped the sides to knock down what comes off easy, blew the losse stuff out of the chamber with and air hose and sprayed it with oil. I am no :censored: tree hugger and am not going to act like one on here so my rust preventer was a quart of motor oil thinned with kerosene. WHich is a whole lot more than my dealer told me to do. he said scrape it out decently, take the ashes out, cover the stack and forget it. I noticed in your post below that you talked about elbow grease when cleaning out in the spring which makes me wonder if I am cleaning mine out good enough. Just how particular should I be about cleaning? The oil seemed to soak through the left over creosote and I noticed no coorosion. Thanks in advance.