I'm looking at a comforter wood stove 1976 model (side load) and the current owner isnt sure where all the "extra" parts go. I've identified one part as a coal grate but there are some other cast parts that look like they would fit in it if i was to burn coal. my other question is my VC vigilant multi fuel stove has fire bricks in it does this model need those too if i burn coal or not if i just burn wood?