Please note: we're the original and only source of our independently validated Green Machines. This is a very specific and exact technology.
Therefore, we cannot guarantee or troubleshoot issues with reportedly similar products sold around the web. Thank you for your understanding.
Welcome to


Home of the original Water Gas machines and HHO pioneers, the Lang brothers. is the leading developer and manufacturer of HHO automobile conversion kits. Our water gas Green Machine is a safe, affordable gas saving device that connects to your engine. It improves mileage, reduces your carbon footprint, and prolongs the life of your engine.

Double your mileage, stop polluting and save money with our simple, easy-to-use technology...

HydroCharger Systems (New!)
Browns Gas or HHO, is commonly known to be a safe, effective, high performance fuel when added, in measured amounts, to an internal combustion engine. The HydroCharger System combines an advanced Hydrogen/Oxygen electrolyzer that makes Browns Gas/HHO on board and on demand, with our proven vacuum operated delivery system. These two components, working together, deliver to the engine just the right amount of Browns Gas/HHO and gasoline to assure maximum performance.

These new, highly advanced, high performance, US Pat. Pend. designs, are now available in three unique configurations, ideally suited for all automotive, fleet and industrial/commercial applications. All three systems can be installed on all gasoline, diesel, flex-fuel and hybrid vehicles...
Original WaterToGas Green Machines
Water Gas Injector

Water Gas Injector

Improve gas mileage by 3–5+ MPG

Brown's Gas Electrolyzer

Brown's Gas Electrolyzer

Improve gas mileage by 10–20+ MPG

Brown's Gas Injector

Brown's Gas Injector

Improve gas mileage by 15–25+ MPG

Water Gas Summary

The Water Gas Green Machine works by adding a small amount of a mixed hydrogen/oxygen gas, called Brown's Gas, into the vehicle's fuel system. This enriched mixture of hydrogen, oxygen (oxyhydrogen) and gasoline is bonded together molecularly and magnetically. The combined fuel results in better fuel economy and an increase in miles per gallon. Usually this increase is in the range of 25%-50%!

Improved mileage is not the only benefit resulting from the use of the Langs' Gas Power Booster. Other benefits may include:

  • A noticeable increase in engine power. Less pressure is needed on the accelerator pedal, to get the vehicle up to speed.
  • The new fuel mixture burns cleaner, burns more completely and burns more efficiently. It cleans up carbon deposits in the engine and prevents future carbon build up.
  • Exhaust emissions harmful to the environment are greatly reduced.
  • The combustion chamber temperature drops slightly, contributing to better fuel combustion and a quicker flame spread ratio.


Latest News

Over 145,000 happy customers & counting!

HydroCharger Product Line launched!

Water To Gas featured on KSAT-TV.

R&D and Operations expanded to Clearwater, FL.

Bill Lang interviewed on KWIC radio show.

Q & A

Has it been tested with and without treating the water?

Yes, and both water treatment procedures are necessary for the MPG increase to be noted. Also, adding extra bubbles, by opening the valve more, may increase engine power, but not mileage.
~Bill Lang

[FAQ page]

Our Guarantee

Every Water To Gas Power Booster is made of high quality, long lasting and durable parts. Each unit is tested and inspected before it is sent out. Should you find the unit to be defective, please contact us immediately. The Gas Power Booster should significantly improve your gas mileage. If for any reason you feel the unit does not meet or exceed your expectations, simply return the unit to us within 60 days and we'll refund your full purchase price (less s&h), no questions asked. Radio Interview

Bill Lang interviewed by the Kentucky Water Fuel Museum

Soon after the interview, we validated those high output results and launched our most powerful and popular systems to-date, the Brown's Gas Injector and our 2nd-generation HydroCharger product line.