How many LPM do your HHO kits produce? (Liters Per Minute)

Nothing is advertised more, and lied about more often, than the LPM a kit can produce. I was just asked this the other day, so I thought an article was in order...

LPM refers to the Liters Per Minute an HHO generator can produce. It is currently measured by varying methods such as empty water bottles or gas flow meters. The problem arises from a total lack of standards in the industry and so it is fraught with unethical claims to help sell kits.

If you look at some of our competitors, they make it a point to post a high LPM rating for their kits, but if you read it carefully, they say "UP TO 3 LPM" or similar claims. Well talk about a loose definition! Up to? That means they could produce 1/2 LPM and still not technically be lying about it. SO look carefully- Buyer beware.

Another area for fraud, is an outright claim for a given LPM that seems high compared to what the efficiency ratings for comparable kits would produce. However, if you dig deeper, you will see that there is absolutely no proof or verification. No videos, no independent testing, no evidence but a wild claim to help sell kits. Again, buyer beware.

Lastly, there are the bait and switch LPM claims. These are the kinds that actually Do have a video or series of videos proving the amazing flow rates of their kits that defy logic. Why do I call them Bait and Switch? Because the videos are usually very well edited to not show the amp gauge, the voltmeter, and the generator system (all hoses), and the flow meter or bottle, all at the SAME time. Why is this important? You may not realize that a generator can be over clocked like a computer processor for a short time without damaging it. You can warm up a system, then pump 50 or 60 amps through it for a few minutes of video, and it seems to be the most amazing thing ever. But its a lie...

You can also have an amp meter showing say, 30 amps, and put 24 or even 48 volts into it for a short time, and make it seem like a heavy producer. How you ask? Easy... a typical hho generator on your car, will operate on 12-13 volts and 17 to 30 amps on average. That is about 220 - 360 watts of power (V x A = W). Now lets say you pump 24 volts in at 30 amps, and suddenly you are pumping 720 watts, which would double production (but overheat the unit in a short time). If you wanted to pump 48 volts in, you would be putting in 1440 watts of power at same amps. So technically, your "demo kit" would show 4 times the output of any other kit...

I wish everyone was honest, but we have been doing this longer than almost everyone. We were one of the first professional manufacturers and we have seen companies come and go. We've seen it all. SO that is why we don't even use the LPM measurement as a basis for our kits. If everyone played fairly, we would, but no one does, so we wont use that as a measurement.

We have established a record of what works and what doesn't. That's why we sell kits based on engine sizes, and the record of our customers results over the years, not a fictitious LPM rating. I urge you before you buy from such a site, ask them for video verification with all elements showing as I indicated. I bet you wont find ONE that will.


Robert Volk
Robert Volk


3 Responses

james t waltz
james t waltz

December 02, 2016

what kind of lpm does the 884 put out and with the tuner will i be able to regulate the amount of diesel going to the engine so that i will increase my mileage dramatically?. I have a ram 2500 with he cummins diesel. I love the truck but filling it up every time i turn around sucks royal ass.

Bob Volk
Bob Volk

August 04, 2016

Bryan – We have not personally done it and don’t have any feedback on the Outboards. We have great results on inboard engines. You are right though, hydrogen would help clean the carbon and run them more efficiently.
The issue would be the amperage needed to drive the HHO generator. Inboards have a car type alternator that runs 3 phase AC, rectified and regulated down, so they have lots of extra juice available. But an inboard typically uses a stator that doesnt put out near the amperage. Now if you have one that can both charge the batteries and run the generator, you could make it work. Even 15-20 amps would help a lot.
The 3 carbs could be fed by splitting the feeder hose into 3, directly in the throats or in a vacuum port. We have a manifold that could do that:

If you get it to work, let me know! If you want one of our kits, you can find them here:


Bryan Thompson
Bryan Thompson

August 02, 2016

Have you had any experience with attaching hho modules to outboard engines? I have an old Mercury six cylinder 1100cc two stroke engine I want to try it with. I believe the hydrogen makes the engine run cooler as these motors are notorious for burning out pistons from overheating. I am trying to make the engine run cooler as well as improve economy.
Can you advise on how to induce the hho as it has three carburetors.
Do you know of anyone doing this and can you advise.
Thanks Bryan

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