 around that it has to be monitored constantly to make sure the fire doesn't inadvertently get out of control and start burning something it's not supposed to burn so it is an option along with the other three that I mentioned for you to consider so I hope something in there helps you I would start by seeking out a stump grinder from a tree service find out if they can get in there with the machine they have or if there's a smaller version of what they have and then maybe take it from there good luck