Well I cleaned the chimney yesterday. This after burning about 1.5 cords or more of pine last year. I know many folks fear pine as they think it produces a lot of creosote. Well, the chimney cap was cleaner than last year, and I got about 1.5 cups of ash from the chimney, and maybe another cup from on top of the baffle. So, from that experience, I learned that I will not only burn pine, I will gladly accept pine when offered it free. It produces heat just like oak, and my stove burns it cleanly. Granted, I'll save the oak for overnight, but pine will be seeing it's way into my stove a lot more this year.