In my third year so am less than an expert but I worry a LOT about keeping it dry inside. I also worry quite a bit about the ashes so I spend some time getting all of them out but I dont worry a whole lot about creosote. This is because the second year I had mine I noticed that when scraping the creosote the metal was bright under it, so I quit scraping it off other than what is loose or thick. Cap that chimney, blow out the last of the ash and oil it down. I use whatever is cheap and handy thined with diesel so it will spray out of a garden sprayer. This year it is ATF. Last year it was Dollar General 10W-30. As Laird said it is good practice to run the pumps now and then but I dont let them run 24 hrs, just a few minutes to keep things limbered up.