I'm in my 5th year burning 24/7 with my Buck. I bought it off of Craigslist out of a foreclosed house so I have no idea of its history. Still fires right off at 400-500* and with the right wood and air control runs to 1500-1800 with no problem. I know there are threads on how long they should last but just curious about anyone's real life experiences and how many years before it crapped out.