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HHO Reactor Cell (Downloadable Plans)

  • HHO Reactor when assembled
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Product Description

The cell is where the electrolysis of water into hydrogen and oxygen gas occurs. It is a watertight and airtight container that holds the reactor core (wired to the power source), the water, and the created H2 and O2 gases, and feeds these gases to your hydrogen science project.

These are downloadable plans, requiring parts and assembly.


The amount of HHO gas generated depends on the size of the reactor cell and the amount of electrical energy put into it to drive the hydrolysis.


The generated HHO gas can be used for our Action Science Projects (HHO cannon, H-bomb demo, HHO pistol, etc.) and as a fuel supplement for gasoline engines. Optional high output current conditioner with thermal feedback control.

These instructions show how to build a reactor that can produce copious amounts of H2 and O2 gas simultaneously, from ordinary water. This combination when ignited can produce a substantial explosion or be used to power engines, torches, rockets, launch projectiles, etc. One advantage of this energetic reaction is that the byproducts are pure water. This eliminates pollutants such as those given from other sources of chemical energy like coal and oil. Another advantage is that the energy yield per molar weight is the highest possible by chemical reaction. This is why it is used as a rocket propellant. And yet another advantage is that this energy source is completely, 100% reusable and recyclable, with only electricity being required to convert water into H2 and O2 gasses, and their recombination releasing energy and converting them back into pure water. Of course it takes more energy to split the water than the energy given when it recombines, but this is true of all types of energy conversion.

As mentioned, the negative attribute is that it takes more energy to produce the gases from water than the energy released upon recombination of the gases back into water. (To overcome this disadvantage would be the “holy grail” of the energy problem.) Fortunately for us and our planet, these chemicals are in their natural state in their stable and non-explosive form of water, and it is going to be very difficult to defy nature to obtain over unity. One viable approach to make hydrogen fuel with electrolysis is to use nuclear power for producing electricity, supplying virtually unlimited amounts. If we develop a very efficient reactor, we could use this energy to make large amounts of pollutant-free hydrogen fuel for all our transportation needs, greatly reducing our CO2 output that contributes to global warming, as well as acid rain and other associated environmental and health problems from the burning of fossil fuels.

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