HHO Generator

HHO stands for Oxyhydrogen. The make-up of gas produced by a hho generator gives rise to this name. A gas generator such as this type of device uses water. Water contains both oxygen and water molecules. You cannot see the oxygen, it is just there. When you add a catalyst to water, sodium hydroxy, it changes the chemistry of it. Now it contains water, oxygen and a hydrogen catalyst.  As the acronym states the gasses the generator produces contain oxygen, and hydrogen. A hho generator gas output will contain these two elements, plus a 3rd, water. So these 3 elemental molecules are contained in the gas which is used by the vehicles motor. The output gas of the generator is fed into the motor someway to increase fuel economy.  In short a hho generator creates hydrogen gas combined of 3 chemical elements.

What is a HHO generator – How does it make hydrogen gas

A HHO generator outputs hydrogen gas of 3 basic elements as mentioned above. It does this through the process of electrolysis and applying a certain voltage and current (amperage) to the mixture of water and sodium hydroxy in the water reservoir of the generator. Simply put, when you apply the right voltage and current to a mixture of this nature, it produces hydrogen gas. The voltage must be between 1.98 and 2.03 volts, and the current used is about 1.5 amps. The voltage applied here is the key. This is what really causes the catalyst or splitting function of the hydrogen molecule. If the voltage is, either too high or too low, outside the range specified then no catalyst function can occur. Too much amperage will cause problems too. You need enough current to create some type of electrolysis function but not too much to compromise gas quality or cause excess heat within the generator reservoir.  The hydrogen cell is immersed within the reservoir solution and water passes freely through the cell and the core plating within it. As the water/catalyst solution interacts with the potential of the plating in the cell, this cooks the hydroxy solution and forms hydrogen gas. It is a simple concept.

What is a hho generator – 2 types

  1.  Gravity fed type hydrogen generator. This type of kit has many parts, lets gravity push the gas up from the core cell module. The fuel cell and the water reservoir are separate. The hydrogen cell MUST sit below the reservoir. This allows gravity to pull the water down so it can run into the fuel cell. The fuel cell applies the correct voltages and amperages to the mixed water solution. This generates a gas and the gas then flows up via gravity to the engine manifold. Vehicle motion propels air into the manifold, propelling the gas into the fuel system of the motor. Parts included in the kit are, a dryer, tubing, wiring connections, separate water reservoir and hho cell, A hole must be drilled in the air filter manifold to accommodate the introduction of gas to your motor. This is also the standard or common hho kit which was 1st introduced back in the early 2000s which many vendors used. It has not evolved much, if at all. All vendors who offer gravity fed kits have the same basics built into their kits.
  2. Hydrogen on demand vacuum fed HHO/HOD kits. There is a HUGE difference.
  • Notice all the parts that a FGS HOD kit does not have. It is a plug and play design.
  • Takes about a hour to put in on most vehicles
  • The hydrogen cell sits right in the water reservoir
  • No separate water reservoir and fuel cell module
  • A vacuum type device. Your vehicle has access to hydrogen all the time, the proper amounts of hydrogen all the time, not just when the vehicle is in motion and the levels of hydrogen “vary” with the wind. Hence the name hydrogen on demand
  • A vacuum SAFETY switch senses a no motor vacuum condition. No vacuum means the motor is not running. Therefore no need to produce hydrogen gas. If a kit does not have this safety feature, it could still produce UNUSED hydrogen gas in the event of a accident. Highly unlikely any type of explosion would happen with a gravity fed hho kit though.
  • Advanced, proprietary, mixing of 3 elemental gasses, Oxygen, Hydrogen and Water. Advanced 5 micron type of water filtering system. Prevents excess liquids from entering the motor and allows only the right amounts.

In short and very specifically the trick is getting the proprietary mixing of gasses right. Too much water in the gas, that will harm a motor. Too much hydrogen molecules contained in gaseous mixture and vehicle mpg and performance suffer. Not enough oxygen added, again this relates to a mpg performance issue.

What is a hho generator – Are they easy to make

I hear this one all the time, that being, yes a hho generator is probably easy to make. If you want to take the time and effort, you can build one of these. Who knows, maybe about 20 hours to complete a gravity fed hho kit. There would be some problems and logistic issues though I feel.  One might be ensuring you have a good dry cell type of kit, otherwise you will be wasting money. If the plating and electrical connections are exposed in the wrong way to the hydroxy solution (it is corrosive) this will degrade the life of the cell and it’s components. Possibly another is a proper safety switch such as a vacuum type kit has, although gravity fed hho kits have been around over 13 years with no reports of explosive issues. Infact some police department use them (they just have not seen our HOD kits!).

A hydrogen on demand type hho/hod kit is much tougher to build. Infact, FGS went through 8 years of testing, R&D, development, more testing to get the mixing of gasses, vacuum application, discrete circuitry, freeze kits and overall operation right. If you hook up a water type device to the vacuum of any motor so the application of it to the vehicles motor is right and correct, you had better have it right. Otherwise engine life, vehicle performance with a hydrogen supplement, and overall kit performance will play a role in determining the effectiveness and value for money that a hydrogen on demand system has. So many people ask what is a hho generator and it is important to have the right one for the reasons we have stated.