alanh;
First what you described seems to be correct. the Freezer is a dedicated circuit with a single attachment receptacle does not have to be gfci protected. And unless it was a ground-fault the gfci would not have tripped anyway. To genrate that kind of heat there had to be one Heck of a short inside that box to where the nails got so hot to cause the fire
You didnt state if the box was plastic or metal but they both can be nailed to a stud with nails.
Did anyone even bother checking why the breaker didnt trip ? Or if the freezer was malfunctioning ? And what Non-metal fastener is recommended to hold boxes to studs ?
I dont have my code book in front of me right now but someone will quote you chapter and verse.
it just burns me up that the contractor takes all the heat. Once this stuff is installed who knows what evil lurks in the average homeowner as far as revising what was done during construction.
-Mark