DIY HHO Torch (Water Torch) for Only $4




About: Hi I'm Angelo! I am a college student taking my engineering majors in BS-EE/ BS-ECE at the DLSU. I use my course as an inspiration for making my current projects! I've been posting projects here ever since I...


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.

Step 1: 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)

Step 2: Cutting the Metal Sheet X12

Cut the metal sheets into 12 pieces. The measure should be a 2x4 inch rectangular sheet. Then cut a line above leaving a small metal for the wire to be connected.

Step 3: Stacking the Metal Plates

Stack the metal plates with a 1 cm styrofoam on each sides and one in the middle, use a hot glue gun for bonding the metal plates and the styrofoam. Then connect the the metal terminals with Magnet/Copper wire.

Step 4: Installing the HHO Converter Plates

Place the HHO Converter in the air tight container. Then make a hole for the wire and be sure to seal it with a hot glue gun.

Step 5: Adding a Tube Connector for the Air Tight Container

Make a hole for the tube connector. Then glue the tube connector.

Step 6: Making the Bubbler (with Saftey Feature)

Get a jar then make two small holes for the tube connectors. Seal the tube connectors with a hot glue gun and be sure to connect a tube for the inlet. Then make a rectangular hole and seal it with a cling wrap with hot glue.

Safety Feature: The cling wrap serves as a safety cap. Most bubblers explodes when implosion occurs. This prevents this from exploding.

Step 7: Making the Torch Pin

Get a inflation pi then connect a tube connector, then seal it with a hot glue gun or use epoxy for better results. After that connect all the tubes to is proper connection.

Step 8: Your Done!

Your Done! You may want to add a switch to the battery.



    • Frozen Treats Challenge

      Frozen Treats Challenge
    • Beauty Tips Contest

      Beauty Tips Contest
    • Pets Challenge

      Pets Challenge

    186 Discussions

    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?

    3 replies

    Reply 12 months ago

    there are not many instructions because hydrogen is a very dangerous explosive. you better research it a little more before you try the way these instruction tell you to put this together because this is not a safe instruction. it will work but you better put in an inline check valve for your own safety. that is the only thing he left out. but that is enough.


    8 years ago on Introduction

    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...

    3 replies

    Reply 2 years ago

    well now that you're 18, I hope you give it a try :)


    8 years ago on Introduction

    AWESOME! This is a very good Instructable! Thanks, I will try to do it!


    8 years ago on Introduction

    Best guide on making HHO torches. Thanks this is just what I need.


    1 year ago

    OK. I have a question. It says to use 12 plates, yet you have 14 plates. Why is that? Thanks.

    2 replies

    Reply 10 months ago

    u can use 2 or 6 or 1200 it does not matter , the more the better.. u need 1 plate for positive and 1 plate for negative = 2 plates ( stainless steel)


    Reply 2 months ago

    Also add the neutral plates to increase efficiency when using anything more than 2-3v


    2 months ago

    Everyone and author if you are using stainless steel to make the plates,
    The water will get dirty with a grey colour this is hexa-valent chromium carcinogenic and nasty stuff I was 14 when I made my own and didn't touch anything without gloves.
    Also you should add neutral plates to increase efficiency when using anything more than 2-3v as most energy will be wasted and water starts getting warm at 12v you should add 4 neutral plates between each anode and cathode to get a voltage of 2.4 v between each plate sounds crazy but tested method almost doubles hho production


    5 months ago

    How long will the battery last?


    12 months ago

    someone should have made a post sooner about this but i just now ran into it. i hope no one has been hurt from this project.


    3 years ago

    What is the purpose of the bubbler? could I exclude it?

    1 reply

    Reply 1 year ago

    The flash back is just that.

    The burn speed of hydrogen / oxygen is very very fast compared to the normal range of liquefied gas sources. It is like a little uncontrolled explosion and all the flash arrester will do is to kill the heat and remove the source of ignition, thereby removing one leg of the fire triangle and keeping down the death rate. With most slow burn fuels you can get an idea of the speed of burn by adjusting the oxygen / air supply and watch the flame base lift off the tip of the torch.