Ofen One of the three ovens where the powder would be heater to over 2000 degrees… hot enough to fuse iron, but not hot enough to liquify it. Related Similar Images ...based on the tags: furnaces, kilns, machinery... On the upper floors where the sunlight is yellow–the color of flour dust, once exposed to the elements. A closer look at the side of the generator. A winding flue between the ovens for Furnace 6, capped with sketchy catwalks. A line of huge machines wait to be used as parts under a long-disused belt drive. Inside the pilot copper concentrator. This is a 1956 furnace. It was used to forge wheels, casings, and parts for the axel shop. Early bird gets the blast furnace. You gotta love that ore yard gantry crane. The workshop sat below the main working floor and had serious power going to it. A massive steel sheer’s equally massive drive cog. Imagine the force.