i live in a condo building with 9 units. for all intents and purposes they're townhomes (i.e. each one is two stories tall with a fireplace on the first floor and a flue at the roof). the building itself is a converted factory, that was gut/rehabbed in the late 80s.
my fireplace has a gas log in it. it also has a fully functional flue. my neighbors have identical looking fireplaces that are wood burning (that is to say they don't have a readily apparent gas line, and they burn wood in them).
is there any way to tell whether my firebox is rated differently? did a previous owner just prefer the gas log and go that way, or are my neighbors flaunting fire risk and unsafely converting under-rated fireboxes (or their predecessors, rather)?