You wouldn't need two burners for clothes though? It takes a few hours to cremate a body, so you might need two for a normal camp morgue. I can't see how you could cremate a room full of bodies with just the two, you'd be there all week Buchenwald seems to have a set of six, rough calculations suggest 30 deaths per day, so all of them burning 10hrs a day might keep up. If they died at the same rate in Auschwitz then it seems a bit pointless to gas them, two burners would barely be able to keep up with routine work camp deaths? It's possible that some were killed this way, but they don't look particularly geared up for that, and certainly if that was the intention from the start then you would have seen this designed as a production line with hundreds of burners? Auschwitz had four crems I think, I read that in late 1944 10,000 jews were burnt per day, this seems hard to reconcile with hardware available. Is there a proper analysis of this anywhere? much of it is a bit vague and it's assumed you already are willing to take it all at face value. If you can really do 10,000 a day, why not do it industrially if genocide was a such a priority? it all seems a bit half assed