On my initial test I found that my van was doing 35mpg before I fitted the generator. After fitting the generator and driving around town for a few hours I found that I was now getting an amazing 48mpg. That's an extra 13mpg - in an 11 gallon tank which is an extra 143 miles per tank!
It only cost me about £30 to build! I was amazed.
It is based on the designs over at:
WWW.ECOHHO.COM
I have adapted the design slightly by just elongating everything into a larger container so I can produce more HHO and so technically get more use from it.
