i'm not an expert, but as the rest of the guys said boxes have been nailed to studs forever. as for as them transmitting heat like that, the breaker should have tripped lon before this ever happened. it wasn't a FPE type breaker by chance? these are notorious for not tripping as i found out in 1980 while i was at tech. big class action lawsuit against them. but guess what, that didn't stop them. another company took over & started making them again. as for the gf it is as the guys said for shock protection not overloads.sounds like the guy saying this is working for the insurance adjuster , not the home owner. hope you keep us posted.
