See few of these around, these induction heating nut loosing gadgets. Anyone used them professionally in their shop? worth to get ? these seems to be home use ones not sure how good they are. Don't want to store oxy-acetylene at home and the oxygen-mapp gas ones are never strong enough. tried welding on nuts to broken bolt trick 50% works and pain when doing it under car.
I think miller have one for pipe heating for 25K which is out of range for avg Joes