These guys are on this site also
http://waterfuelreview.com/?id=C224008 They use to have a video of the guy in Florida who was building The Browns Gas welders but I see they changed their site. He most likely came after them and made them remove the video.
They use to show a drawing of the inside of their units, I see that is gone also. One thing for sure, NONE of these units make “Browns Gas” but they will make a lot of steam. The third one down actually uses glass in his design. That is a no no.
You guys need to learn what Browns Gas is before you buy into this. You will quickly see this for what it is. A flashy site and that’s it. Eagle Research has a couple of books on how the gas is made. They show you how to build one of the welders. The guys on the run you car on water site don’t’ come close. You can do a search for Yule Brown the inventor of Browns Gas and find enough info to make a good decision.
Smith you are right on the types of hydrogen. Here are the details on that.
http://en.wikipedia.org/wiki/Spin_isomers_of_hydrogen
One of the theories I’ve heard is pumping the water with dc (pulse width modulator) through a series electrolyzer will facilitate the production of a higher ratio of parahydrogen. This is what Browns Gas is believed to have.