The woodstove that I have is made from a 55 gallon barrel using the kit for building a woodstove. I have used it for many years in fact I am starting to work on rebuilding it as the original drum is over 15 years old. It has not burned through yet but I know it is getting thinner every year. I found a new drum last year when I hauled some scrap metal in. I also have some changes that I am working on.