I bought a Bolt Buster flameless induction heater from my local Napa. I must say, I am impressed. It does work as advertised. I have used it on dozens of bolts. It does take slightly longer than advertised on large bolts, but that may be because of my extention cord. The thing I like is I can use it on things that normally weren't worth dragging the torch out for. There is also a lot less chance for collateral damage than a torch because it will not directly heat plastic or rubber. It's not a cheap tool, about $430, but it has been worth its weight in gold to me so far. Would be a handy tool to have for field repairs, too, because it can run off of a generator instead of dragging a torch set. It cannot be used by persons with a pacemakers, though, as it is an electromagnets that operates in the kHZ range.