When playing the long dark, I can easily make a fire outdoors. I even get the stones for free, all I need is matches, tinder, fuel (and accelerant is optional).
Now sometimes I discover locations with a pre-built fire opportunity: a barrel, a stove, a belly pot fire...
However, I still need the same 3 ingredients, and the chance to start the fire seems the same to.
So are there any advantages to using a pre-built fire (say, a barrel in a train wreck) as opposed to just making your own fire?