More questions than we can handle! W don’t know all the answers either, but we will try to pass on some of what we have learned from our trial and error. I am going to post some of my thoughts on your comments so everyone will find them.

From: Gary Bruner

Hey guys I ended up making my anode out of stainless steel woven mesh and it works great and I made a simple housing using your design…….now how in the hell do I hook it up to my car. Again thanks in advance and with any luck I’ll be able to tell you about my road test soon!

From: Wooly

Hi Tim. I was wondering if their was a way to have the unit so that it only produced hho when the motor is running. eg: alternater. Or will it just take it from the battery anyway?

I want the unit only running when the motor has started is if people sit with the ignition on for some time. With a litre of hho a minute, it would soon be coming out the exhaust pipe in no time.

Disclaimer: You are responsible for anything you do with HHO information. Be careful! Make sure you take precautions, and don’t assume we have mentioned everything! Hook an untested unit up to a vehicle at your own risk! As far as hooking up your unit, there are a few things to remember. As someone pointed out in the comments, there is a heated wire in the air intake sensors to watch out for. This wire could cause an explosion, or flashback. That leaves the space between that sensor and the throttle body as safe. Don’t hook up on the upstream side of that sensor! If you don’t know vehicles, you need to find someone local who can help you out on where to put the HHO gas into the engine.

Always use a fuse on your wiring. This will help you avoid cooking any wiring in the case of a short circuit. Test your unit off the vehicle to make sure everything is good to go. Depending on how much gas your unit is producing and where you send it into the motor, you probably need a flashback arrestor to protect your generator.

For wiring into your vehicle, we can’t advise you on that since there are so many different variables on all the different models. If one of your buddies knows cars, quiz him up. Otherwise, talk to someone who installs car alarms, stereos, command start or handsfree phone kits for a living. They know more about what wire to tap into than any backyard mechanic.

You definitely have something there, Wooly. It is really important to make sure your unit isn’t running when the vehicle is shut off. That is why, for wiring, you should get professional advice or help. If it is your own vehicle, I guess you can take your chances with jury rigging a simple switch temporarily if you want. Don’t modify a vehicle for someone else and make it dangerous to use.

Aron and I have started to build our own homemade HHO fuel cells. What we are working on isn’t rocket surgery, folks. These basic fuel cells that everyone on the internet seems to be churning out aren’t very complicated. Even so, you can really screw up and cause an explosion. In fact, we did blow up our second HHO prototype. It was on Aron’s table in his house when both end caps and the anodes blew out of the casing. Our best guess is that a corroded connection arced and lit the hydrogen oxygen gas mixture, resulting in a blast that Aron says nearly blew his eardrums and the windows in his kitchen. No one was hurt, but the generator is non functional. We have since improved our design by removing all wires and soldered connections with a one piece anode made from stainless steel (corrosion proof).
If you go to look at our video on YouTube, you will see that Smartscarecrow left a comment pointing out we would have had a real problem if we had used a glass container instead of plastic. You may know that there are units with glass containers being sold online. I wonder how one of these units would hold up mounted under the hood of a car, with vibration and possible road garbage bouncing up.

Subscribe to our email updates for Hydrogen Fuel Cell articles.

When Aron and I first started talking about hydrogen and uses for it, it was 1996. It was a little beyond both of us at the time. We didn’t have the resources we do now.

Lately, it seems like hydrogen information is coming out of the woodwork. We started trying to make our own hydrogen generators in the last while, since it isn’t really that complex. And we aren’t alone; many others are busy building their own HHO.

A lot of people want to find out more about homemade hydrogen generators. Not everyone will actually build one. Many of you probably just find it an interesting idea, and others will decide actually building one will be more work than they want to do themselves.

We can help out there, too. We will be reviewing the products of others, as well as showing you how we made our HHOs. We will give you links to materials ans even to completed units. Check back here later, or subscribe for email HHO hydrogen article updates.