> Dunno where to read about it. but here is the website that Robert Fisher
> posted on the subject.
> http://www.youtube.com/watch?v=ImGaraPrEo8

Good ol' local news channels. Long on hype, short on facts. They had plenty
of shots of the guy pouring WATER into the HHO gas generator, but
conveniently not a single shot of the 30 amp, 240v POWER CORD it plugs into
the wall with. Water isn't the fuel here, wter is what the fuel becomes
after it's burned. That green box is simply an electrolytic cracker that
produces a stoichiometric mix of O2 and H2 called "HHO gas" or "Brown's
gas". It's very good for certain types of welding, but almost entirely
useless as engine fuel. HHO gas actually gets SMALLER when it combusts, so
it's wholly unsuitable as a fuel for any sort of internal combustion engine
on its own. It does, however, mix well with liquid or gaseous hydrocarbons (
e.g. gasoline) and significantly boosts THEIR thermal expansion upon
ignition. Also, it causes them to burn more completely, so it's an effective
pollution reducer. Thing is, there isn't any "free lunch" here. The added
efficiency is paid for by the electricity it takes to crack the water into
HHO gas, and that ain't cheap. Typically, 70-90% of the electrical energy
used in electrolysis is wasted.

--
John Bange
'90 Vanagon - "Geldsauger"