I think Chau posted about the same problem when he first got his, and he was an early user. I don't know if it has burnt through on anyone, but a number of us have tried to address it by adding an extra piece of metal in that area - don't use galvanized or zinc, plain steel is fine, and so is stainless. I added a patch, and cut off part of the support bracket, and opened up the bracket on the right side moved the heat shield to the right to try to get more of the flames going straight up. I also ended up adding a piece of metal to the left side of the heat shield to make sure it rested on that bracket, and opened up the bracket in the rear to get the heat shield to move in that direction as well. I have attached photos of the piece I added on the right side. Again, I don't think it has failed on anyone yet, but it definitely gets very hot.