In this Instructable I will show you how to make a simple, cheap and effective HHO torch that can melt small pieces of metals like tin cans. This can be used in various applications it can be connected into your fire torch or in your car which is also known as the HHO Hybrid Generator which can reduce your fuel consumption although I don’t have a car I am still a 12 years old boy.


A lot of people are asking what and how does a HHO Torch/Generator works. It is simple a HHO torch/Generator separates water molecules into gas, now you will have a mixture of Oxygen and Hydrogen gas which can give a powerful kick or flame.


- You can connect this in a fire torch pin which I will show you how to make.
- You can use this for your car to reduce fuel consumption. But this will not be mentioned for this Instructable, it would be better of you Google it.
- You can use this to weld o melt thin metals

Warning: It is not my responsibility if any of you gets injured or burned so don't blame me for your mistake. Luckily I made some safety features which are already tested and prevents some common problems with HHO converter like explosions and implosions which creates cracks or even explosions. Hydrogen are highly explosive especially of you mix it with Oxygen. Batteries not included.

Be sure to rate this a 5 star. This instructions are very rare and hard to find.
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Step 1: Materials

Picture of Materials

You Will Need:

- Vinyl Tubing/Fish Tank Tube 2m (50c)
- Air Tight Container x2 ($1) 
- Fish Tank Tube Connectors x3 (30c)
- Stainless Steel Plates x12 ($2)
- Wire 1m (20c)
- 12 Volts Battery (revised)
- Inflation Pin (10c)

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This is awesome!! A must try for this weekend!!!
day-veed3 years ago
Nice ibble'! I really wanna try it but in Singapore, 12 year old boys like me aren't often seen cutting steel and making a torch...
PS: The clingwrap pressure valve was ingenius!
rimar20003 years ago
AWESOME! This is a very good Instructable! Thanks, I will try to do it!
such a nice job
icekid3 years ago
Best guide on making HHO torches. Thanks this is just what I need.
Cool project, well written and documented. I've had a build for one of these on the agenda for a while, because nobody answers any questions about them.

Compared to a normal torch how would the flame be, in terms of heat and gas flow?
rarial12 days ago

What's the purpose of the bubbler ?

jadedhills1 year ago
Try using Stainless steel mesh instead of plates give more gas
or aluminium
aluminum corodes

aluminum works better than steel since it does not dillute the solution with corrosion. But you have to wash the aluminum plates to remove the plaque buildup.

my wookie10 months ago
i just used 2 large aluminum heat sinks for plates.
ASCAS (author)  my wookie10 months ago
That's good, but be sure to sand the aluminum with sand paper
5imx ASCAS7 months ago

how should i connect "terminals of the metal plates? one wire to the little tap of the top left side, where does the other one go?

ASCAS (author)  5imx7 months ago

Each wire connected to different plates. The process is called electrolysis. Try to google it to get a better glympse on how it works.

Hi, what's your plate pattern?


Are you using plain tap water or distilled water?

You should add salt or bakingsoda to the water to get way better effekt.

If you use distilled water it won't work at all because totally clean water can't conduct electricity, it is the minerals (like salt) or metals.

But be carefull when using salt, if you do you should be outside if you deside to build a large scale HHO-generator. Saltwater in contact with DC creates chlorid gas which will harm you in large amounts or under longer uses.

Bakingsoda does not create chlorid gas therefor you may use it inside the house or your garage even if you don't have any good ventilation there.


+ More safe

- Less efficient.


+ Way more efficient and cheaper

- Could be directly harmful, chlorid gas moves straight for the lungs

Another tip is to heat the water or just take take hot water from the tap, this will speed up the reaction even more and you will get larger torch with more gas in it. It will also probably increase the amount of gas and make the reaction time last longer.

No i'm not from the United States

@GustavF1 thank you for the advice. salt just shorts the plates and burns out your power supply.

@ASCAS , i'd like to know the plate pattern you used. Was it just positive plates alternating with negative plates or is it something else?

mcevanlong1 month ago
you should make an update
zachanator1 month ago
Nice design i hope it works for me!!!!
ToXiCATOM5 months ago
ruzish6 months ago

any proven result ?

ASCAS (author)  ruzish6 months ago

Yup! You can certainly produce a thin flame, adding a larger nozzle would result to backfires. I have a new design that would produce more gas and a much more thicker flame.

TheCommander7 months ago

The Commander is pleased, well done Lad

ASCAS (author)  TheCommander7 months ago

Thanks! :D

bigfoot032428 months ago
Angelo great project keep up the good work. always think of safety first and don't get discourage if Ideas don't work the first time always ask questions and use the resources around you. If I had the internet at your age as a resource what could have I created would have been infinite. I'm just discovering open source hardware community it just blows me away what people around the world working together can accomplish such solutions as the clean water projects and free energy programs. Have a great day Kid your inspirational.
ASCAS (author)  bigfoot032428 months ago
I'll do that! The young generation of today is lucky to have the internet. I just remembered one the last conversations I had with my grandpa, we were talking about the old days, when getting original ideas were tough. Unlike the old days, today's internet age has all the resources. All it takes is one click and a month's work of research in the library gets done.

Thanks for the kind & inspirational comment!
crazypj10 months ago
Could you fit a non-return valve to the outlet so pressure would have to build up before it opens?
I think the aquarium ones open around 1/2~2psi?
tasdawg crazypj8 months ago
crazypj, add a air pump the the mixture ;) you know the blubbers too ad oxygen :p, these run at about 5 - 8 psi, add a ball value too it, and that will give you a little more pressure, and a good oxygen and hho mix, you still need oxygen for fuel to burn in this atmosphere, thats why they have a oxygen tank on the space shuttles, because they use liquid hydrogen to send them into space, also, depending on your output, try adding small house, and a bigger bubblier :p
ASCAS (author)  crazypj10 months ago
Yes you can!
lrderrick2 years ago
Nice. I have something similar and used an inflation pin but I keep getting flashbacks. Any ideas? Does this happen from too little HHO flowing?
No, this just happens due to burning. The same thing would happen during welding except that you have a backfire/flame arrestor. With this design you will also not have stable PSI which is possibly another issue. Not using an arrestor is dangerous. You can either use an oxygen/hydrogen arrestor (used for gas welding) or appropriately a Gas Torch Mount Flashback Arrestor (I would suggest the latter but either would be better than none and the welding one should run around $10).
Thanks for the reply. I did have a flashback arrestor similar to what is shown in the picture - a jar with the gas running through the water. But the flashbacks kept blowing the lid off the jar. I tried to let it run for a few minutes first to see if there was a problem with air mixture. Maybe it's something like what happens on a vehicle? If there are any leaks in the exhaust the car will back fire. Maybe I don't have a well sealed line?
I would say that the problem is that you have a complete recipe for combustion. A burn or explosion needs three things to happen. Oxygen, fuel and a source. The HHO is both fuel and oxygen in one, so having an air leak would not cause this problem. A venturi-type regulator like on some low-end grills would not do anything either. To be honest, the only flammable gases I have ever really worked with have been hydrocarbons, and usually the containers had a gas mixture too rich to backfire. I dunno how you can solve this problem, but the idea of PSI being a problem might help somewhat. Perhaps pumping it into a bike inner tube?
tasdawg tmos5408 months ago
producing too much oxygen will kill a fire, you need a correct ratio to burn, you add more O2, and you can cool or even slow the burn rate down, but a no flammable gas like argon, burns but does not explode, thats why they use it in welders, it stops the vortex created with a burning flame, and takes the oxygen, and every other known impurity out of the weld, they use hydrogen and argon to get a hotter weld area. try it - you can pick up a small gas bottle for about $30 from Australians masters/bunnings, i use it for nitro cars ;) 20 argon / 40 nitro / 40 diesel, its a great mixture, and boy oh boy does it give a bang!, but i use argon to delete the need for brace in the chamber and to remove the carbon build up...... and my engines run almost 100 degrees cooler, stop engine was 250 - 260 now i can get it as low as 110, and add more fuel!!!!!
HHO is the recipe for an explosion the perfect mix of fuel and oxygen, to get a sustainable flame you need to introduce an inert gas to reduce the burn rate of the HHO, you need to add an air compressor to the system and as air has a high percentage of inert nitrogen gas you can achieve a sustained flame. I know a guy who is tinkering at HHO production and he has achieved a sustained flame by this method.
tasdawg Dr Qui8 months ago
use sheild pro 31, will get a BETTER! result ;) ARGON removes impurity from the atmosphere ;) think about it, pressure + nitrogen, perfect! run at about 30 psi on a 4000kpa tank, your tank will outlive your plates! :P
kelseymh3 years ago
Nice project! Well done, decently written (though you could use an editor to deal with the typos, misspellings, etc.).

The "fuel consumption" stuff is a scam, but you won't have taken enough science courses yet to know that. This is a good opportunity to learn how to think about things quantitatively.

First, the energy density of hydrogen less than 1% that of gasoline, so even if you carried a tank of hydrogen and injected it into your engine, it wouldn't make any noticeable difference. You'll get better fuel economy by paying attention to starting and stopping, than by "magical" devices.

Second, suppose that you used the car's engine (battery or alternator) to run the HHO generator. The power that is being diverted to the HHO generator is not being used to move the car, so that corresponds to a drop in fuel economy. The process of electrolysis isn't 100% efficient (it can't be), some of the power that goes to the generator turns into waste heat, for example. So when you burn the hydrogen, you won't get back all of the energy you used to create it in the first place. You certainly can't get more, but in reality you won't even break even. That's another drop in fuel economy.
Hydrogen additive works because the hydrogen burns three times faster and allot hotter so when the spark plug ignites the gasoline air hydrogen mix the hydrogen ignites first and because it burns faster the hydrogen then ignites the gasoline from every side and results in a better ignition and a cleaner burn.
this is a link that will explain why hydrogen additive works

here is a quote from it too
The hydrogen explosion is so fast that it fills the combustion cylinder at least 3 times faster then the gasoline explosion and subsequent ignites the gasoline from all directions (it is like putting flue on a fire), instead of just a spark in one end of the combustion cylinder, and we would like to do that because the gasoline only has a short time in the combustion cylinder and if its not fully burnt in that short amount of time then it just goes out the exhaust and is lost.It is also preferable to ignite all of the gasoline when it is under maximum compression in combustion cylinder to get the maximum amount of energy out of it (this is a small time window),whonce the piston starts going down the energy transfer from the explosion to the engine becomes less efficient.

The hydrogen´s higher burn temperature and explosive force is such that it cleans the soot that collects in the engine (it is like having the engine consistent maintains) and with a cleaner engine you get better mileage and fewer oil changes .
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