Introduction: Simple and Durable Hydroxy Gas Generator

Picture of Simple and Durable Hydroxy Gas Generator

This instructable is a description of how I made my fifth hydroxy gas generator. Hydroxy gas has been an evolving science for me as I have learned what works, and what doesn't, what you need on a generator, and what you really don't, and that you shouldn't ignite a milk jug full of this stuff at 10:00 PM in the middle of your neighborhood, or you will have some explaining to do. My goal with this generator was to make a device that quickly separates water into hydrogen and oxygen gasses, can be made without advanced tools and is as tough as nails, so that I can throw this thing in my trunk and set it up at a friends house without worrying about spilling caustic fluid, or starting anything on fire. So let's get started.

Step 1: Build a Container

Picture of Build a Container

Containing the generator, bubbler, and power components in one tough and organized place is a must for a durable setup. I chose to make my own box from cedar wood because it is rot resistant, looks really cool, and smells nice. In order to begin making the box you will need to decide its final dimensions, and in order to do that, you will need to skip ahead and find your stainless steel carriage bolt. It is important to have the bolt at this stage because this will determine the final height of your box. It is also important to add the length of your gas output connecter to the length of the carriage bolt to determine the height of your box. I didn't do this and ended up having to cut down my connecter. Here is a list of supplies and tools I used for this step.


- 2 Cedar Boards 1.5 in wide x 1 in thick x 8 ft long

- Titebond III Wood Glue

- Wire Nails

- Hinges

- Latch

- Paint

- Painter's Tape


- Drill Press

- Drill Bits

- Hammer

- Table Saw

- Rubber Band

- Clamps

- Chop Saw

- Rubber Bands

- File

- Sandpaper

The first thing that I did was to cut down my cedar boards into 16 pieces that were each 8 inches long. I cut 45 degree angles into 16 of them being very precise with this step. I took these pieces and glued them together to form squares. I didn't have a band clamp, and so I made do with rubber bands. These worked super well for me and after the squares had dried, I took them over to the drill press to pre-drill two holes at each of the joints. After pre-drilling, I knocked some nails into these joints and sanded, filed, and planed them all to something of the same size. Next I used the table saw to rip one board to half of its width and I made another mini square with this one. This was to get the box to an acceptable height for the generator. Using my table saw I then ripped down a couple more boards in half for the bottom of my box. I glued all around the bottom of one frame and using a lot of clamps and weights, left the glue to dry. Once the glue was dry, I put nails thorough these strips.

Next, I trimmed the bottom of the box and glued all of the square frames together, using clamps to hold them in place. Once they were dry, I heavily sanded the whole box. Next I scrounged around and found a nice pine board which I cut to make a square lid. It doesn't match the cedar, but I like the nice color contrast and it doesn't bother me. I sanded it down and clamped it in place while I attached hinges to the box. Clamping it while I did this allowed for near perfect hinge movement. Next I fastened the receiving part of the latch to a scrap piece of wood and I mounted the locking part on the lid of my box. I glued and clamped this scrap piece of wood in the right place by locking the lock while the glue dried. Then I went back and put some nails into this scrap piece.

After this, I thought that the box needed some pizazz, so I printed off a raindrop picture from Google Images, and after carefully cutting it out, I used painters tape to secure it to the lid of my box. I then painted the outline with royal blue oil-based paint, and I let it dry.

And then, the box was done.

Step 2: Build the Generator

Picture of Build the Generator

Now it's time to get down to business and make the generator itself. My design is a negative electrode made from a modified stainless steel water bottle and a positive electrode made from the bolt, some nuts, washers and three shot glasses. The electrodes are held in place with square pieces of cutting board with circular ridges cut into them. The upper square has a hole for a cork that is for easy filling and emptying of water. The system for collecting the gas consists of a robust connector screwed into the top square, a small check valve to prevent siphoning and a bubble counter that I found online. Here is the list of supplies and tools that I used for this step.


- Stainless Steel Carriage Bolt

- Stainless Steel Nuts

- Stainless Steel Locking Nuts

- Stainless Steel Washers

- Stainless Steel Water Bottle

- Stainless Steel Shot Glasses

- Clear Plastic Water Bottle

- Cutting Board

- Tubing Connector

- Check Valve

- Tubing

- Bubble Counter

- Thread Tape

- Rubber Stopper

- Silicone


- Drill Press

- Chop Saw

- Circle Cutter

- Hacksaw

- Ruler

- Fine Point Sharpie

- Masking Tape

- File

- Clamps

- Crescent Wrench

- Pinpoint Torch

- Pliers

- Sandpaper

- Drill Bits

- Crescent Wrench

The first step in building the generator is cutting out the squares of cutting board. The size of the squares is determined by the diameter of water bottle that you are using for your outer casing. I used a hacksaw and I cleaned up the edges of the squares with a file and my pocket knife.

Next I cut my clear plastic water bottle. The length of this water bottle is determined by the length of your carriage bolt and the thickness of your two cutting board squares, as well as the length of the bolt that will go on the bottom of the generator and hold it all together. I used a chop saw to slice cleanly and evenly thorough the bottle.

Next I made the negative electrode. This was one of the most difficult parts of the whole project. I have attached a diagram that I drew to help you get an idea of the angles and measurements of the cuts. I used a sharpie to make marks and masking tape to help me make the cuts straight. Once the bottle was cut to size, and the strange tab on top was cut correctly, my neighbor loaned me his propane torch and I used a pair of pliers to bend this tab into a quarter inch tube. I went thorough all of this trouble to make the final product more air tight. After this I used a scrap block of wood cut to precisely fit inside my bottle, to support the bottle while I made indentions and drilled a set of nine holes in my tube. These allow gas made on the outside of the tube flow to the inside, they allow electric current to reach the outside of the tube, and they look cool.

Next I made small markings on my shot glasses with a sharpie in the exact middle and using my drill press, not turned on, and a nail in its jaws, I made indentions in the shot glasses. Next I drilled thorough the indentions with a small drill bit in my drill press, and then a bigger bit, and then finally the 9/16 bit.

Next I drilled holes in my plastic squares. The top square got four holes and two ridges. A hole in the center for the square part of the carriage bolt to fit snugly into. A hole for the circular part of the negative electrode to slide into. A hole for the cork. And finally a hole for the gas output tubing connecter to screw into. The two ridges were made using a circle cutter and a drill press. The two ridges are for the positive electrode and the outer casing to slide into for a solid overall build.

Step 3: Assemble the Generator

Picture of Assemble the Generator

The next thing I did was to sand the electrodes in a + pattern with 100 grit sandpaper. I sanded the inside and outside of my negative electrode water bottle and my positive electrode shot glasses. I also sanded the outside of my bolts. They will not contribute much surface area, but they are still part of the positive electrode.

Next I filled the small tube on the negative electrode with silicone and I screwed in and sealed the gas connector with silicone.

After these had dried, I put on some gloves and using oil defeating soap, I washed all of the metal electrodes very thoroughly and then I rinsed them off thoroughly with distilled water. For the most part I did not touch the electrodes past this point with my bare hands.

Next I assembled the whole thing. I began by putting on gloves and sliding the cutting board square onto the bolt and then using the square part of the carriage bolt and two crescent wrenches to screw on the first locking nut on tightly. I generously applied silicone inside of and around this joint. If I had been thinking, I would have screwed the other locking nut on at this point as well. But alas, I was not and I was later forced to thread two normal bolts onto the bolt ahead of the locking nut so that I could thread it on without breaking the silicone seal of the top locking nut. Locking nuts are hard to screw on.

The purpose of the second locking nut is to hold the shot glasses in place with a very small gap that allows for gas to escape. This will require some tinkering to screw it on just far enough. After this, I slid a shot glass on, followed by four washers and a regular nut. I repeated this until I had a third shot glass without any washers or nuts behind it. Then I put the negative electrode into place and heavily siliconed around where the tube pokes thorough the top square. Finally, I put a bead of silicone into the outer groves of both squares I pushed the outer casing firmly into the grove of the top square. Then I added the bottom plate and after a heavy coat of silicone around the hole in it, I added some epoxy as a makeshift thread locker and I screwed on the final bolt. After some finishing touches of silicone around the union of the outer casing and the squares, I set it down and let it dry for a solid 24 hours.

Step 4: Conditioning

Picture of Conditioning

Once the generator dried, I filled it up with distilled water and rinsed it out. If I did it again, I would have measured the water that came out so as to provide a precise measurement for the water that I would pour in with electrolyte. I put thread tape on the threads of the bubbler and filled it up with distilled water. I then cut pieces of tubing and attached the bubbler and a length of tubing off of the bubbler to the generator. I used 20 ml of Sodium Hydroxide (lye) to 3 cups of distilled water. I added the lye to the water slowly, stirring continuously. This solution was poured into the generator and once the power was hooked up, with the negative to the water bottle, and the positive to the carriage bolt, and the first bubbles of hydroxy gas churned thorough the system.

I ran the system for 30+ hours and changed out the fluid four times and the batteries five times. I changed out the fluid of my generator when I could see that it had a rusty color to it, as seen in the above photo, or when it had a significant amount of rust flakes in it. The conditioning made an obvious impact on the speed of my generator, that is, it got faster each time that I changed out the fluid. I knew that I had finished conditioning and could install the generator when the water remained clean for the duration of the batteries' life.

Step 5: Electrical

Picture of Electrical

Electrical is my weak side, and so please take this advice with a grain of salt and a fire extinguisher. During the early stages of conditioning, you may need to use a higher voltage setup in order to obtain decent gas rates. Once I had conditioned my cell for awhile, however, I was able to use an ideal setup of 4 D batteries. The hydroxy community says that 2 volts is the target for your generator, but I am fine running 3 volts in mine. In order to achieve this setup, I used 4 D batteries. Two are wired in series with each other. The other two are also wired in series with each other. These two sets are wired in parallel with each other. This setup gives 3 volts while doubling the amperage output of power. I used a solid switch which I bought from for authoritative control of my system.

Step 6: Putting It All Together

Picture of Putting It All Together

Now I assembled everything. I began by cutting angled pieces of wood and gluing them to the side of the box to create a solid locking system to hold the generator in place. Then I wrapped the upper two triangular pieces with grip tape. This helped to secure the generator into the box snugly. Next, I used a hacksaw to cut apart the mounting piece that came with my bubbler. I then smoothed out the ridges in the plastic with a file, and drilled a hole thorough the piece. After shortening a nail and mixing up some epoxy, I glued and nailed this mounting piece to the wall of my generator. Next I used a soldering iron and heat shrink tubing to assemble the electrical battery boxes. I cut some wire and wrapped it around one of the switch terminals using heat shrink tubing to secure it and I attached my battery packs to the switch. Next I mixed up some more epoxy and glued the switch into place in the corner of my box. I then used some stainless steel screws to secure my battery boxes to the walls of my box. The wires were kept tidy with the help of a cable tie and a staple.

Next, I connected the negative wire to the water bottle with a piece of heat shrink tubing and a zip tie, and I connected the positive wire to the carriage bolt with a magnet. This setup allows me to easily take the wires off of the generator for filling it with fluid, and for more room in the box while I replace the batteries. I then cut small pieces of tubing and connected the generator and the bubbler with the check valve in between. Finally, I installed fresh batteries and a length of tubing to the bubbler outlet, and I mixed up a fresh batch of electrolyte fluid and poured it into the generator body.

And then it was all done.

Step 7: Conclusion

Picture of Conclusion

This instructable, like all instructables, is not free of errors.


- I didn't account for the expansion of the battery packs when batteries are installed. I should have installed each of the battery packs with some space in between.

- The box wasn't quite big enough. I should have made it 6 3/4 inches wide on the inside, and 7 1/2 inch tall on the inside as well. As it is, everything is a bit cramped.

- I should have used a more robust sealant on the generator body. My silicone is holding up fine, however, I anticipate some trouble in the future.

And that's it. You are now ready to blow up milk jugs and demonstrate science to your awestruck friends. Thanks for viewing!


JustinJHCS (author)2017-08-22

panels are 24X36" Home made with 78% 0.7VDC Diastolic Efficient Kull cells ( not good enough for NASA ) 12 will produce Little over 13VDC Look on Ebay for more.

JustinJHCS (author)2017-08-22

got one that runs on Led Acid and Solar cells produces 8-10lpm Unit designed for 24VDC Diesl Trucks.

RobertK197 (author)2016-07-31

If ac or high frequency current is used, the gases are mixed. If they are then pressurized in a tank, then the tank can explode at room temperature this led to a tragic loss of life and property a block away. A couple of months later it was repeated in another storage facility with loss of limb. Sadly, these only proved that a conman can do more damage when he believes his own theories and keeps doubling down other peoples blood and money. A car could never have an uncompressed tank large enough to go far.

I take it, from your comments, that you are not familiar with Stanley Meyers' patent, which uses a "hydrolyzer-cell" to break down H2O into "HHO", also known as "Brown's Gas", and his unit DID run his VW-based 1.6L air-cooled engine "dune-buggy", without ANY pressurized storage tanks of hydrogen or oxygen, as far as he wanted to go, & as long as there was water in the tank, with just a pinch of salt to allow electrical conduction. (The salt stays in the water when the water is broken down into H-H-O.) It's also normally safer to vent the oxygen to the atmosphere than to try to put it into an engine; that was tried during WW-II on aircraft engines, and the engines usually melted. That resulted in Nitrous Oxide being found to work much better for a "brief but significant burst of extra power", (as long as a LOT of extra fuel is also added to preserve the fuel-air mixture ratio.) The point being, is that this system, if it produces enough H-H-O gas, can & will provide all the fuel one needs to power a small reciprocating-piston internal-combustion engine. If this design doesn't produce enough gas, then the "hydrolyzer" cell isn't being resonated properly, or more than one needs to be used. Since it doesn't appear to be designed to produce enough gas to run a 1.3L to 7.5L engine, but only to provide enough gas for a medium-temperature torch, it seems to have been well thought-out & implemented. The most important thing to always emphasize is: SAFETY FIRST! Always experiment outside, in a place where other people or property can't be harmed, (remember that only a small latex-balloon full of acetylene can shatter windows quite a distance away if it ignites & there's air or oxygen inside with it, which is why any "acetylene device" is normally illegal to even possess, without the necessary paperwork, such as a Chemistry Teacher would have, to demonstrate various ways to generate powerful & potentially dangerous gases to a class), and to do all "due diligence" & studying ALL of the available existing "prior work" first; use safety glasses or face-shields, a good thick leather "wrap-around" apron, & make only tiny amounts of something until you're quite certain you know how much is "enough", and should a small amount of the combined gases (H+O) find a spark, also be wearing hearing protection, & have a flash-arrestor in the gas-generator line, to avoid a "bang!" from becoming a "KA-BOOM!" For a small, moderate-temperature torch, this basic method was also patented, and it works quite well. It will not replace an oxy-acetylene gas torch, but for the "in-between" torch temperatures, there's the simple propane torch, the oxy-propane torch, or a MAPP-gas torch, for higher temperatures, depending on what maximum temperature is desired, and how much range-of-temperature is desired. This model is a nicely thought-out example of a small device; it doesn't appear to be intended to run a car, or replace other gas mixtures for higher-temperature uses. Thumbs-up for the use of nice wood & good woodworking, and being careful about not allowing any sparks to get to the gas-generating areas! (The other comments about not using stainless-steel are valid; just put a pinch of salt or other safe material in the water to make it conduct; the chromium in the stainless is going a bit "overboard", and CAN be hazardous, as far as waste-products go.) All-in-all, this one gets a "Well-Done!" from this "Old-Timer"...

Stanely Meyer was a fraud. He never built a vehicle that ran solely on the electrolysis of Water being created from the vehicle while driving. Yes I seen the Patents, but a Patent is easy to get if it is proven unique. Meyer did not have to prove the Patent office that is ran a vehicle. All it showed was his electrolyser. It is impossible to run a vehicle on the electrolysis of water while at the same time producing the Gas from the Engine driving the Electrical system and Wheels.

Ilan Voyager (author)RobertK1972016-07-31

No sensate person will compress HHO in a cylinder, for security and economics reasons. Besides it's totally useless as the interest of a HHO generator is to produce HHO on demand, and to get rid of the annoyance of tanks, refilling and maintenance.

aweaver4 (author)2016-07-31

This is impressive, but what do you use it for? I'm no engineer, but this is cool :D

valveman (author)aweaver42016-08-16

This can be used as a Torch. This cannot be used to run a car by having the car produce the gas as it is driving. If you read that on the internet, it is false.

Austin Noble (author)aweaver42016-07-31

As of yet, I have strictly used it for explosive demonstrations. There is a huge adrenaline rush associated with the explosion of a milk jug of hydroxy gas. In the future, however, I would love to add a torch head to my generator for soldering and melting.

aweaver4 (author)Austin Noble 2016-08-02

Oh okay! Nothing wrong with plain old fun lol!

RobertK197 (author)Austin Noble 2016-07-31

Unfortunately, h2 gas has low caloric content and may just leave water condensed on the work piece. So people use TIG welding, propane or butane instead of h2 or acetylene. and butane or prop

Ilan Voyager (author)RobertK1972016-07-31

Hydrogen gas has been industrially used in the USA for welding and brazing during WW2 when there was a shortage of acetylene which was kept in priority for cutting steel in the naval industry. Hundreds of thousands of aluminum fabrications were weld with hydrogen torches (2800° Celsius with pure oxygen). There is no condensation it's simply too hot and dry water vapor is not a problem when welding.

Acetylene is widely used in the world as a good 2900-3200° Celsius torch is a very versatile tool in any good shop, it's also used for cutting very thick steel and forming plates in shipyards. In third world countries small acetylene generators with calcium carbide are used for jewelry brazing.

Nowadays there are small brown gas ( called also HHO) generators for polishing acrylics and jewelry welding-brazing. Pretty convenient as you do not need any more cylinders with revisions, refills and tutti quanti just electricity and water. A correct one is around 400-600 USD.

Propane, Butane and LPG are very "dirty" and not very useful in some applications like platinum or delicates alloys welding/brazing. And many times TIG with the expensive argon tanks is not practical; try to weld a 0.6 mm platinum wire on a ring with a TIG...

CPUDOCTHE1. (author)2016-08-03

If you want to keep the hydrogen and oxygen gas separate tor try to use if for a torch and mix it at the torch, you can separate the anode and cathode horizontally. Oxygen will form at one and hydrogen at the other (it has been over 30 years since I got my BS in Chem and I have never been employed as a chemist or I could tell you which would form at which electrode.) Just collect the separate gases at each electrode, and mix them where you want them.

shortw (author)CPUDOCTHE1.2016-08-07

If I remember right oxygen forms on the positive and hydrogen on the negative.

There is more gas forming on the negative, so the negative got to be hydrogen since water contains 2 parts of the hydrogen.

Robbin1 (author)CPUDOCTHE1.2016-08-03

Any idea on what that collection tank/ system would look like? My torch however only has one valve for the Oxyhydrogen. I think (since I have not used it yet) that it needs both gases to flow through he torch for it to burn correctly. I'm unsure if it pulls any O2 from the ambient air to help with the burning or only relys on the two gases flowing together through the torch?!? Any thoughts on this? Anyone?

I really want to try this torch out but I have limited time right now. I am getting the items together for the build, and hope to find a little time at the end of this month to build the generator. Any info on this torch and how it works the best will be greatly appreciated!

yrralguthrie (author)2016-08-02

There have not been any papers published "on this process" other than published on the internet. Try to find one reputable scientific journal, where any confirmation of brown's gas has been postulated. Not a "scientific website" a written journal. You can use the internet to find it, but there must also be a connected scientific journal. Can hardly believe you would point me to a link on the internet to prove brown's gas exists. Wiki's don't count.

Robbin1 (author)yrralguthrie2016-08-03

By the way, Yull Brown who coined the name Brown Gas was born in 1922 and On May 22, 1998, Yull Brown died at Westmead Hospital in Auburn, Australia. The HHO gas is still called Brown's gas in memorandum to Yull Brown. He was never convicted for fraud of any type!

The fraud you are talking about had nothing to do with Brown, it was others who tried to sell and defraud the public on free water file for their cars and trucks, years after Yull Brown died!

I know I said I wouldn't sat anything more, but I had to clear this mis-conception!

Robbin1 (author)yrralguthrie2016-08-03

For your reference

.. Articles you may be interested in Oxyhydrogen burner for low‐temperature flame fusion Rev 07. JOURNAL OF APPLIED PHYSICS ... JOSEPH A. ADAMSKI American Science and Engineering,

Inc., Cam&ridge, J.fassachusetts (Received 5 October 1964; in final form 7 December 1964 ...

You can also find more info at OMICS International website which has a large collection of scientific journals. This link will take you to that site and some info on the subject as well.

As for the chemical suture of this process:

electrolysis: 2 H2O → 2 H2 + O2

combustion: 2 H2 + O2 → 2 H2O

Please get past the names used, once you read the name “brown gas” you assume we are talking and stating it creates some “special” gas. That is far from what we are stating! Re-read my posts, you missed what I stated once you read the name “brown gas”!

My link was only to show you that the name is still used, that's all!

This is the last I will offer on this, this guy did a great job making this is instructable!

I for one hope he will make more and especially if he improves on his generator! He has my support!

Tardisrepairman (author)2016-08-03


Thanks for this instructable, You have made a very nice box and the parts inside are well put together and clearly achieved your goal.

I am surprised by the amount of argument about the name and structure of the gas prioduced.

I think the main point is that the gas produced is explosive.

This is not the same as simply flamable.

Propane and butane are flamable gases that can be stored and shipped safely by preventing them coming into contact with oxygen until they are to be burned.

Hydrogen is the same.

If the hydrogen was collected seperately and stored is a container without any other gas (Say, by filling it with water and inverting it is a container of water and bubbling the hydrogen in , thus displacing the water in the container.) the hydrogen would be relativly safe. It only burns when in contact with oxygen.

This generator produces a mixture of Hydrogen and oxygen in the same volume of space.

(Whatever name you give this , we are all agreed that the elements are present and in the correct proportions to combust. :-) )

I know from personal experience that even 2 liters of this mixture in a soda bottle can cause a powerful expolosion.

The flame arrestor mentioned in the comments is a fine metal mesh that stops combustion from travelling from the torch into the tubing and generator by cooling the burning gas belowcombustion point.

If this fails or is not present , there is a real danger that the tubing and genertator could explode.

As with many Instructables, the information contained in yours is valuable and should be treated cautiously. :-)

yrralguthrie (author)2016-08-02

How about you get a basic textbook on chemistry and study a little bit instead of relying on what you read on the internet. I'm not pushing my belief on anyone. I'm just stating facts.

You have a lot of links to back you up, but all the links are complete and utter BS. ALL trace back to one man and the people who drank the kool-aid he poured into their cups. You've read something on the internet and you believe it. Your not going to believe any links I send, but if you want to become knowledgeable on the subject you should do some study.
Find something on your own, so you can't say it came from me. You're not going to do that because you have a vested interest in believing the browns gas BS.
Try to find a chemical equation that supports browns gas. If you do find a possibility you are going to have to learn enough about the different kind of chemical bonds to actually know if it's true. Hint: it's not. Hydrogen and Oxygen do not combine to form a gas. In what chemistry text can you find something that is a "different state of water" with the formula HHO. I can't see how anyone on God's green earth can believe that or just swallow it without seeing some basic chemistry to allow it to happen. It is literally beyond my imagination. The man (Brown) made it up! Get a transcript of his trial or a synopsis.

yrralguthrie (author)2016-08-02

Well your explanation of the combination of hydrogen and oxygen to form water is somewhat correct, but you start with an incorrect concept.--------------------------

The chemical reaction as you know is 2H2 + O2 = 2H2O------------------

Notice that it starts with hydrogen and oxygen gases, not hydroxyl gas. You're mixing junk science and real chemistry. If one puts some hydrogen gas and some oxygen gas in a balloon and ignites it, water will form from the two gases. Not from some junk science hydroxyl or browns gas. It that were true then there would have to be two reactions. One to separate the hydrogen and oxygen from the hydroxyl gas and then a second to form water from the newly separated hydrogen and oxygen. The H2 and O2 in the balloon are separate gases. They haven't combined to form a third gas, and they don't react chemically like a third gas, but as simply H2 and O2. The H and O in the balloon is not a compound or even a mixture. The gases are still separate. H and O don't mix nor do they react to form a gas. When they react they form water.----------------

There is simply no such thing as browns gas or hydroxyl gas. Again a figment of the imagination of a fraudster. Perpetuated on the internet. ---------------------

The energy released when the hydrogen and oxygen reform into water is a small quick burn, like an small explosion, but contains no more energy than the electricity used in the electrolysis. So no big burn or explosion. Filling a balloon with hydrogen and oxygen gases and then ignited it to form water is many times done on a teachers desk in front of students. In a lecture hall where there is some separation between the desk and the students.

Robbin1 (author)yrralguthrie2016-08-02

you can go to this link and read about this gas. Sure, the name brown gas is a nickname that stuck but it is a name used for this gas. There is much more info on this gas and what it has and is still used for! But your right, we should refer to this by its real name "Oxyhydrogen" gas.

"Brown's Gas" is oxyhydrogen with a 2:1 molar ratio of H2 and O2 gases, the same proportion as in water. It is named after Yull Brown, who claimed that it could be used as a fuel for the internal combustion engine.[4][13] It's also called "HHO gas" after the claims of fringe physicist[14]Ruggero Santilli, who claims that his HHO gas, produced by a special apparatus, is "a new form of water", with new properties, based on his fringe theory of "magnecules".[13]

Many other pseudoscientific claims have been made about Brown's Gas's pretended ability to neutralize radioactive waste, help plants to germinate, etc.[13]

Oxyhydrogen is often mentioned in conjunction with vehicles that claim to use water as a fuel. The most common and decisive counter-argument against producing this gas on board to use as a fuel or fuel additive is that more energy is needed to split water molecules than is recouped by burning the resulting gas.[4][15] Additionally, the volume of gas that can be produced for on-demand consumption through electrolysis is very small in comparison to the volume consumed by an internal combustion engine.[16]

An article in Popular Mechanics reported that Brown's Gas does not increase the fuel economy in automobiles.[17]

"Water-fueled" cars should not be confused with hydrogen-fueled cars, where the hydrogen is produced elsewhere and used as fuel or where it is used as fuel enhancement.

yrralguthrie (author)Robbin12016-08-02

I am pretty hard headed sometime, but some of you put me to shame. There is no such thing as brown's gas, hydroxyl gas or oxyhydrogen gas. I'll say it again. Hydrogen and Oxygen don't react chemically unless they react to form water. They don't form a gas, whatever you want to call it. They don't mix. if you put hydrogen and oxygen in the same bottle you have hydrogen and oxygen in the bottle, but they do not mix not form a different gas. When hydrogen and oxygen react it is similar to rusting steel. The steel oxidizes. Forms Iron Oxide. Hydrogen oxidizes. Forms hydrogen oxide. (water). If an iron bar is put in a bottle of oxygen you have an iron bar in the bottle with the oxygen. If hydrogen is put in a bottle of oxygen you have hydrogen in the bottle with the oxygen. You certainly don't have browns gas, or hydroxyl gas or oxyhydrogen gas. I don't know where on God's green earth you got that term.

Browns gas, hydroxyl gas or your other made up name oxyhydrogen gas are names for something that simply does not exist. They cannot be made. Browns gas is a name given to a fraudulent product by a person committing a fraud. They are not nicknames, they are a fraud. A name for something that never existed.

You folks are trying to support something you've thought had some validity with made up theories.

Robbin1 (author)yrralguthrie2016-08-02

I guess we are just going to agree to disagree! The term "brown gas", "bang gas" and "Oxyhydrogen gas" are all names used to refer to the gas gained from this process. Right wrong or indifferent, they are still names used and will be used for some time to come. You can claim it doesn't exist nor does the names. I however will refer to Science and the papers written and published on this process. Chemistry 101 tells me the difference and properties of liquids, solids and gases to know what is a gas and what is not. Sure they don't mix on their own in this process creating a "special" gas and no one is saying the do, until a reaction takes place combining them back to a liquid state. The separated hydrogen gas burns in the torch mixing with O2 as it burns. Creating high heat to weld, melt metals or blow up a milk jug! Please fell free to believe what you want to believe. But once you have said you piece, don't keep trying to push it on others who simply disagree with you. Perhaps if you offer some published data to support your claims you may find a different reaction from others. "Names aside"!

Also, I don't understand how I put you to shame? I mean no disrespect to you or your beliefs. They are yours and I respect your beliefs even if they don't follow mine!

yrralguthrie (author)2016-08-01

Actually a hydrogen gas torch is very similar to any other gas torch, like oxyacetylene in that it uses hydrogen as the gas that burns and a separate source of oxygen to provide the oxidizer. A hydrogen torch does not burn from one gas. Both the hydrogen and oxygen are in pressurized bottles.

A mixture of hydrogen and oxygen does not make a hydrogen torch. The hydrogen and oxygen produced from electrolysis will not get hot enough (2800 degrees) to use in the specialized fields a hydrogen torch is used in unless a mixer and separate valves are used on pressurized bottles of gas. Acrylic polishing and jewerly soldering can be done with a simple propane torch. Far safer and with less accouterments. To use the gas produced from electrolysis in a torch you still have to have the torch, hoses and some way to attach the hoses.

HHO is water. Brown's gas is does not exist.

What you or anyone else gets from electrolysis is hydrogen and oxygen and if you mix them together you get a hydrogen/oxygen mixture of indeterminate composition.

You did great work on the container for your electrolysis, but electrolysis is just a nice hobby experiment, there's not any real use for the gases produced. Plus as others have said if you plan on combining the gases without some planning and additional equipment you are very likely to get some serious burns. Almost a sure thing in fact. Publishing plans for a portable gas generator and then saying "use the gasses to polish acrylic or to solder jewelry" is rather irresponsible. Again HHO is water and there is no Browns gas.

Firstly, please don't misquote me. I never said in my instructable that it could ""use the gasses to polish acrylic or to solder jewelry."" I rather stated that "I would love to add a torch head to my generator for soldering and melting" in the comments section below. Secondly, HHO is a gas mixture. Once burnt, it turns back into water, but it is not, as you suggested above, a liquid. "Hydroxy" or "Brown's gas" is simply a nickname for a combination of gasses much as "Air" is the nickname for a combination of oxygen, nitrogen, argon, carbon dioxide, and other gasses. Why then, do you claim that a mixture of gasses does not exist? Thirdly, the gasses are already combined inside of the generator body. I have not isolated the electrodes while allowing an electric current to pass between them as has been done in the past. Finally, if hydroxy gas were to injure me, It would most likely be from an explosion of gas, (which I have taken precautions to avoid), not a burn. I understand how to use a torch, and indeed I did so on this project (see the image of the negative terminal connection point). Therefore, it is not logical to say that it is "almost sure thing" that I will be burned by hydroxy gas.

First don't get your drawers in a twist. There are others on here that did say the gas mixture might be to used to polish acrylic , etc. Second HHO is not a chemical formula for any gas. There is no such thing as a single chemical formula for any gas mixture. This was made up by Brown and he was prosecuted for it and other claims he made. And you are mistaken for what "Browns gas" is supposed to represent. Browns gas is a hoax. ANYONE who uses the term Browns gas other that in a derogatory manner is either not informed or deliberately being misleading. Ditto hydroxal gas as that would represent a single gas, not a mixture. A mixture is simple denoted as a hydrogen/oxygen mix. There is no name for any mixture of gas other than a brand name. "HHO is a gas mixture. Once burnt, it turns back into water, but it is not, as you suggested a liquid" That is complete and utter BS. Not chemically possible. And finally, hydrogen and oxygen mixed together burn, they do not explode. Hydrogen and oxygen could be used as a propellant for a rocket. Because one can control the burn rate. Before you chastise me please learn basic chemistry.

Thank you for your interest in my instructable and your engaging comments. My apologies for any sharp and unkind tone that my replies may have had. Although it has been awhile since my chemistry class, I would like to show how and why hydroxy gas turns back into water when burnt/exploded, (anybody please feel free to correct any terminology or other errors). In its isolated gas form, hydrogen shares a single chemical bond with another hydrogen atom and oxygen shares a double chemical bond with another oxygen atom. This is due to their amount of valence electrons (oxygen 6, hydrogen 1) and their striving to be like the ideal gasses with 8 valence electrons (with hydrogen being an exception). Electrolysis of water produces twice the amount of hydrogen than oxygen, and so at the beginning of our combustion equation we have four hydrogen atoms, each with single bonds and two oxygen atoms sharing a double bond. A flame or spark initiates the break of these bonds and the atoms re-organize themselves in a stronger pattern. One oxygen atom breaks from the other oxygen atom and forms a single bond with two hydrogen atoms. This gives it 8 valence electrons (like it always wanted) and it is the well known liquid (or gas if it was vaporized in the process) H2O. This happens with the other oxygen atom as well. Thus we end up with two water molecules from our combustion reaction with hydrogen and oxygen as reactants. This reaction is exothermic and releases energy. Using the less accurate but more simple bond energies method of estimating this energy, we find that it releases approximately 478 kJ of energy per mole.

Matt Damon in the film "The Martian” seems to agree when he says, "So I gotta make a lot more water. Good thing is, I know the recipe. You take hydrogen, you add oxygen, you burn.” Again, thank you for your comments.

Robbin1 (author)2016-07-31

just wanted to say, "Good Job"! I have been looking for a simple, elegant and efficient generator for my torch. This is the best one I have seen so far and I'm going to use your design. Others that I have seen use an ion generator in the build and for the life of me I could never find the reason it was needed! Perhaps there is a reason, anyone know why? Once I get mine built, I'll post the build. Again, thank you for posting this one, it'll make my life much easier and should provide all the gas I need for my torch! They have these available on Banggood if anyone is interested and there under $50 bucks!

Austin Noble (author)Robbin12016-08-01

Thanks so much! I will look forward to seeing it! Just wanted to make sure you are aware that I have not connected this to a torch yet and so I do not know if it has gas rates that will be sufficient for an application like that. I am sure, however, that you can obtain increased rates with more conditioning and a higher voltage setup, although you may get some heat buildup and steam generated. Also, you might consider building more than one of these and combining their gas outputs.

Robbin1 (author)Austin Noble 2016-08-01

Thanks for the information! As I'm not sure how much it takes to run the torch and info on the net is limited. What I have read thou, it takes little pressure but the volume is the unknown. Some pictures I have seen of the torch in use, they had three connected to the hose so I'm thinking I may need to go that route as well. I'll start out with one and build more as needed. I'll post what I find as soon as I can get it built.

DIY-Guy (author)Robbin12016-07-31

What is the exact name Banggood uses in their description please?
I'd like to avoid buying something different.

Robbin1 (author)DIY-Guy2016-07-31

this is the name of the torch, Senior HHO Oxyhydrogen Gas Torch Welding Gun with 5 pcs extra nozzles. The other item you want with this as well is the Liquefied Petroleum Gas Flamethrower Rubber Hose Flasback Arrestor. The name sounds bad but all it really is, is a hose with a flash arrestor that is designed for "brown gas". the torch is $29.88 and the link is

The hose and arrestor is $11.19 the link is

I have both and from being made in China are very well made and it's free shipping as well. It just takes a few weeks to get it to the US but shorter times for other places.

killbox (author)2016-07-31

What are you doing with your waste water? stainless contains chromium, which when electrolysed turn into cancerous chromates. you should not dump the water, you should pour it into a wide flat container and evaporate it down to a sludge and turn that into your local hazardous materials site.

DIY-Guy (author)killbox2016-07-31

Could be time to rethink the stainless steel and substitute other metal.
Killbox: What would you suggest? I'm very interested in avoiding hexavalent chromium or other forms of those chemicals.

RobertH25 (author)2016-07-31

Please, just remember that when water is electrolyzed, the resultant gas mixture of H2 and O2 is _exactly_ the correct mixture for an impressive explosion at the slightest spark of excuse.

yrralguthrie (author)RobertH252016-07-31

Actually hydrolysis doesn't produce a mixture of hydrogen and oxygen. It separates water into hydrogen and oxygen. There is no mixture to ignite. The whole point of the generator is to get separate containers of hydrogen and oxygen. However the oxygen by itself is a very strong oxidizer and will support burning. Hydrogen by itself has less energy than gasoline vapor.

RobertH25 (author)yrralguthrie2016-07-31

If you do not separate the electrodes, the gas mixture is evolved as a H2 - O2 mix with 2 parts hydrogen to 1 part oxygen which burns very rapidly - so rapidly as to be an explosion if there is enough of the mixture present.
In some circles, the H2/O2 mix is called "Brown's Gas" and is used as a fuel.
It is your choice, of course, to use the generator in any manner that you choose but for those who care about safety, be careful that the evolved hydrogen and oxygen are kept separate.

Ilan Voyager (author)RobertH252016-07-31

There is no interest for a shop or amateur to produce hydrogen and oxygen by electrolysis of water, and to compress them in cylinders or tanks for stocking. The cost and risks would be prohibitive.

But a HHO or brown gas generator can be very useful in some fields as acrylic polishing and jewelry. The gas is produced on demand and immediately burned by the torches. The gas circuit has flame arrestors and check valves.

You get rid of all the problems created by stocking gases, tanks filling and their maintenance. After use, the gas circuit is purged and the eventual remaining quantities of the mix HHO in the generator are minimal (a few cubic centimeters) and do not present a risk.

Quantumdust (author)yrralguthrie2016-07-31

If you don't provide separate containers for the two products evolved you get a mixture in one container. This is obviously what the designer wants from the start. Try reading his description again.

RobertK197 (author)2016-07-31

One theory is that h2 gas is the most potent antioxident in the body. Supposedly the benefits of high fiber diets and probiotic bacteria is that they generate h2 gas in flatulence. Also alkaline water made in electronic filters (Kangen. water) or water treated by Pulsed ElectroMagnetic Fields (PEMF) would have trace amounts of H2 gas. Wines, liqour and bottled water taste better for 3 days until the h2 gas diffuses out of the container. So this project may make water,wines and liquor taste 10x more expensive and more healthy. Worth a try.

nunoit (author)2016-07-31

a list of where you got the materials for building the generator would be great

Austin Noble (author)nunoit2016-07-31

Thanks for asking. I got most of my technical and electrical parts from and Menards. I got the parts for my box almost entirely from Lowes, and I got some basic supplies such as the cutting board and distilled water from Walmart. And no, none of these businesses sponsored me, so these shopping choices are from the heart.

yrralguthrie (author)2016-07-31

Actually I'm aware of the google explanation for Brown's gas. My question was more or less rhetorical since there is no such thing as Browns gas with a formula of H2O2. In fact no such thing as Browns gas. While Hydrogen and Oxygen gas can be mixed a third gas is not created. All the explanations on the internet are just made up junk science that trace back to one man, and his fraudulent scheme to make money.

Made up by a man wanting to sell something and perpetuating a fraud. The court case involving the fraud is part of public record.

When hydrogen gas and oxygen gas is actually chemically combined water is always the product. That's why a hydrogen engine is considered non-polluting.

When hydrogen is ignited and oxygen gas is present the oxygen aids (oxidizer) in the hydrogen burning. The more oxygen the faster the burn. Not actually an explosion, it can be used in a cutting torch for metal. Or can appear to explode, but is a very fast burn. There isn't really a perfect mixture to burn or "explode", the more oxygen the faster the burn. Up to the point the hydrogen is consumed.

By the way, between a pint bottle of hydrogen and a pint bottle of oxygen the bottle of oxygen is the more dangerous. Simply because it will aid in the burning of anything flammable.

yrralguthrie (author)2016-07-31

I see where you've made a hydrogen and oxygen gas generation using hydrolysis. Your headline says hydroxy gas generator. What is hydroxy gas?

Quantumdust (author)yrralguthrie2016-07-31

Two seconds of keystrokes on Google gives instant answers to a LOT of obvious questions that people ask on Instructables :-)


  • Hydroxy gas: A nickname for oxyhydrogen, a combination of hydrogen and oxygen gas produced from the electrolysis of water
yrralguthrie (author)2016-07-31

Oh. I forgot to ask, what is the point? What do you use the hydrogen or oxygen for? What do you do with it at your friends house?

billbillt (author)2016-07-31

Good luck going back to school and getting your degree.. I did the same thing when I was 42 and working full time.. It was tough but paid off.. With a degree in ME you can almost name your price.. I am now retired and living well from investments from the huge salary I made.. Best Wishes..

Chitlange Sahas (author)2016-07-29

Adding a solar panel will be a good idea. Nicely Built.

Yes, good idea. I would love to add a solar panel to the lid of my box at some point. If I could figure out how to wire it to some rechargeable batteries, it could continuously charge off the grid and wouldn't require expensive battery replacements.

About This Instructable



Bio: I'm a born again Christian. I'm going to school for mechanical engineering at South Dakota State University. I enjoy math, making things, drawing ... More »
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