I had a buddy that tried the water to gas deal. He spent months working and testing his project, Finally got his riding mower to work off it. He could produce just enought Hydrogen to mow his postage size yard, one time. Then it was charge up the mower battery. Little alternator couldnt produce enough electricity to make the needed hydrogen and keep the battery charged at the same time. Since my buddy is sort of into all this tech stuff, he built hisself a solar panel to charge the mower battery,that way he wasnt adding to his electric bill, Great, now he had a true free way to mow his grass. Spent a fortune getting it to work. Made it thru about half the summer, then the mower blew up. I forget exactly what happend, but the motor actually shattered the block and piston. Well he at least proved to himself that the water to gas deal would work, so he rigged it up to his little ford ranger. Spent another fortune getting that to work, but he still had to run a mix of gasoline to get anywhere. He did this for a while, made big claims of increased gas mileage, probably true, I guess. Then he started having mechanical problems with the truck. It wasnt long until he ditched the whole water to gas ideal, took it off his truck and hasnt fooled with it since.
Now my buddy is a little bit of a nerd, and he has came up with several ways to heat and cool his house that does save him a lot of money. Him giving up on the water to gas ideal sort of leads me to believe that even tho it could get it to work to a certain extent, that it just isnt practicle when it comes to actually saving any money. Hydrogen does funny things to metal, it is very corrosive and there is no practicle way to store any excess gas you might make. The hydrogen molecule is so small, it will leak thru any kind of metal or plastic tank that can be used to store it. Making the material extremely brittle and likely to break like glass. It is also extremely explosive, meaning a leak could also lead to a very dangerous situation. Very flammable and easily set off with a static spark. The government and car companies have spent billions of $$$ trying to build a hydrogen fuel cell automobile, and they havent got it figured out yet. Maybe one day, but for now, i think i will just save my money and not mess with any of those water to gas ideals being sold all over the internet.