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-veed4 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!
rimar20004 years ago
AWESOME! This is a very good Instructable! Thanks, I will try to do it!
such a nice job
icekid4 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?

i doubt this set-up actually provides sufficient pressure to act as a torch. A lighter, maybe, but not a torch. Torches need their fuel/oxygen mixture to be highly pressurized so that the gases can come out fast enough to make a strong jet of fire. It also helps the gases to flow faster than they're being burned up and "keep up with the fire" helping prevent back-flash. It needs something to build up the pressure and ALSO regulate it. Refer to blowtorches.

" Why you should not use stainless steel electrodes for electrolysis "

Many people using the electrolysis method for rust reduction swear by stainless steel, stating (incorrectly) that it's not consumed, stays clean and seems safe.
Stainless steel is indeed consumed when used in the electrolysis process, although slowly. The main problem with using it is the hazardous waste it produces. Stainless steel contains chromium. The electrodes, and thus the chromium is consumed, and you end up with poisonous chromates in your electrolyte. Dumping these on the ground or down the drain is illegal. The compounds can cause severe skin problems and ultimately, cancer. Hexavalent chromate is poisonous. These compounds are not excused from hazardous waste regulations where household wastes are.
These compounds are bad enough that government regulations mandate "elimination of hexavalent chromate by 2007 for corrosion protection."

Does your electrolyte turn yellow? That's a sign of chromates.

If you have been using stainless steel for the anodes (positive electrodes), wear rubber gloves when working with or near the liquids. If you need to dispose of it, allow it to evaporate into powders and dispose of the powders in sealed containers during your local "hazardous waste clean-up days".

Best bet - don't use stainless steel no matter how tempting it is.

skwoorl8 days ago
What thickness plates work best? Must they be stainless? How are the magnet wires attached?
Nigelr11 month ago

You need a metal pipe to connet to the flame nozzel if you use for longer time, or plastic will melt.

rarial12 months ago

What's the purpose of the bubbler ?

To remove excess water to get pure hho.
GustavF1 rarial12 months ago

It protects the generator itself by taking the blast if something would explode, which keeps both you and the generator safe.

You can also use the back of a ciggarett as a backflash.

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 wookie1 year ago
i just used 2 large aluminum heat sinks for plates.
ASCAS (author)  my wookie1 year ago
That's good, but be sure to sand the aluminum with sand paper
5imx ASCAS9 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)  5imx9 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?

mcevanlong4 months ago
you should make an update
zachanator4 months ago
Nice design i hope it works for me!!!!
ToXiCATOM8 months ago
ruzish8 months ago

any proven result ?

ASCAS (author)  ruzish8 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.

TheCommander10 months ago

The Commander is pleased, well done Lad

ASCAS (author)  TheCommander10 months ago

Thanks! :D

bigfoot0324211 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)  bigfoot0324211 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!
crazypj1 year 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 crazypj11 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)  crazypj1 year ago
Yes you can!
lrderrick3 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?
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