Just been having a flick through the Hoess book again. A few interesting excerpts:
“The two large crematoria, 1 and 2, were built in the winter of 1942-3 and brought into use in the spring of 1943. They had five three-retort ovens and could cremate about 2,000 bodies in less than 24 hours… the two smaller crematoria, 3 and 4, were capable, according to calculations made by the constructional firm of Topf of Erfurt, of burning about 1,500 bodies within 24 hours.” (page 191)
“The highest total of people gassed and cremated within 24 hours was rather more than 9,000. This figure was attained in the summer of 1944, during the action in Hungary, using all the installations except number 3.” (page 192)
“Depending on the size of the bodies, up to 3 corpses could be put into one oven retort at the same time. The time required for cremation also depended on this, but on average it took 20 minutes.” (page 199)
It also appears that the Germans did attempt to exterminate Jews lying outside their area of control: “Finally there was Spain. Influential circles were approached by German representatives over the question of getting rid of the Jews. But Franco and his followers were against it. Eichmann had little faith in being able to arrange for an extradition.” (page 200)