I was just thinking about this and have no idea if it would work or not but can a beer keg be converted to use as a fireplace? I have seen keg barbecues but not a stove. I was thinking I could cut a door in the front and put a grill in for the wood to sit on then put a small vent valve on the bottom to adjust airflow. Then cut the top of the keg out for a smoke stack. Is it safe to have a fire using stainless though?