Identify this concrete structure found at a concentration camp.

Can anyone tell me what this thing is? Is it some kind of torture device, or what?

http://img697.imageshack.us/img697/1517/sdc11555r.jpg

Don’t know. What concentration camp?

Weird!!!

I doubt that it’s anything sinister, actually. Could it be part of a stove shown? Heating system?

It does look as though it might have been some kind of rugged protection for a metal stove/heater - firebox in the enclosed part, flue in the upright part, maybe some sort of hotplate or radiator on top of the middle section.