I would like for everyone to take an other look at the document D18.pdf. The unit is fairly easy to build. Many will have to take it to a welding shop but that is still OK. The unit is also produced in an ebook entitled "DIY Hydrogen Hybrid V1.1.pdf". this company is try to patent this!!
http://www.hho-hybrid.com
If you can not find the 4th version let me know.
Your email MUST say "REQUEST D18 PDF"
if it does not you will not get a reply.
John
jwdryden@roadrunner.com