Easy Method to Measure HHO Output in LPM

Many are asking how to measure the output of their HHO generators, so here is a cheap and easy way to do it and as accurate as one can be. Materials needed are 1 Glass Jar ( 1 liter or 1 quart, whatever) , Plastic Cap ( or could be the regular metal cap), about 30" of 3/8 Plastic Hose and a 500 milliliter or larger measuring cup borrowed from the kitchen cupboard.

Drill two 3/8" holes in the lid, insert one end of the 3/8" hose to the bottom of the jar through one of the holes, then measure about 12 inches or so from the other end of the hose and cut it off so you end up with the hose used as the output from the generator to the jar. Insert that hose about 1 inch through the other hole in the lid and the other end to the generator or cell output.

I had to "goop" around the hoses in the lid, both underneath and on top of the lid as it would leak otherwise. Also with the pressure required to displace the water from the jar, the lid was leaking until I made a gasket for the lid. ( It may be simpler to use the regular lid with rubber gasket than the Plastic cap)

To do a measurement, fill the jar with water, screw down the lid, insert the hose that does not go to the bottom of the jar into the output of the cell and the other hose into the meauring cup. Turn on the power to the generator and start timing when water starts entering the measuring cup.

After one minute remove the hose from the measuring cup and read off the milli-liters of water in measuring cup.... divide the number of milli-liters by 1000 to get LPM. There you have the LPM output of your device.... for example, say it filled the measuring cup to the 450 ml mark ...... 450 ml divided by 1000 = .45 LPM Simple.

Click on the video clip below to see how it works. You will note the water being displaced by the hydrogen entering the jar and the water level increasing in the measuring cup as the level in the jar decreases.

If your device happens to fill the 500 ml meauring cup in less than 1 minute, for example.. fills it in 40 seconds then divide the number of seconds into 60 and multiply by .500....... 60/40 x .500 = .750 LPM .......... if it fills in 30 seconds,then .....60/30 x .500 = 1.00 LPM, etc

Have fun and cheers, Rebel