Sorry to keep throwing Mats report at you, but this is an easy observation. Either the output contained water, or it didn't. If you believe in forgery, then anything is possible, of course; but otherwise, there's no doubt that it was steam.
" - no consideration was taken to vaporization enthalpy. Yet the temperature at the output reached over 160 degrees Celsius with and open ended output tube, thus basically at atmospheric pressure. The output was led down into a sink. Initially water was pouring down, but at high temperatures there was no water dropping at all. If all the water was vaporized, the output thermal power would have been above 27 kW." http://matslew.wordpress.com/ Craig
