Recently I came across a little "portable gas forge" on Ebay for $200 and I may add that its the best working little forge. however I recently had a bit of an issue, I wasnt paying attention to my temperature and managed to melt through the ceramic blanket insulation, the firebrick shelf, and the bricks I put on the back of it, as well as several pieces I was attempting to work on. so my question is this, where is it possible to get insulation over 3000 degrees, why do people think its impossible to forge weld with gas, and how do people figure a gas forge will "Make the iron wither away ins