That was a very interesting link, mmuuzzyy. Thanks for that. Doesn't look like we will be diy'ing those batteries... er... ultracapacitors.

I am inclined to agree with you about on-demand production of hho to supply or even supplement present ICE's designed for gasoline or diesel.  I do hope that someone develops engines which are specifically designed to utilize the energy available from the recombination of hho.

IMO, generating hho with electricity from the grid is chasing our tails. We need other ways to produce it. Wind and PV are out because there is no sense in generating electricity to produce hho to produce electricity with. Same goes for hydro-electric. However I see one bright spot that is a possibility.

I am keenly interested in the thread "Linnard?s hydrogen on demand system without electricity" on this forum which ResinRat2 is spearheading the research on. If this process (which RR2 has shown does work) can be scaled up to supply energy for a home, all it consumes is water and very slowly, the zinc electrode. RR2 is presently trying to find a way to get the zinc electrode to re-plate itself 100% but even if he does not, I don't mind changing the electrode every couple of weeks or so. Zinc is cheap and plentiful. 

My quandary is what to do with the hho once it has been made. I have yet to see a water or air heater which uses hho that I would trust not to blow my home up. I have not seen an ICE that has been proven to run on hho long term without possible engine damage. Fuel cells which can convert the gas to electricity are prohibitively expensive. Little ones that can run a toy fan cost hundreds of dollars and iirc can be ruined easily by contamination.

We need practical machines that make use of the hho we can produce.

"Is this guy correct?"

Hardly,  when your calculations are based off of solely hydrogen without oxygen mixed in, ignore everything he has to say! 

Just another distraction from the truth.

Mikemongo

This link puts you onto an easier system and a much harder system:
http://www.free-energy-info.co.uk/Chapter10.pdf
for 20amp to 30 amp, you can get 1.7 LPM, 3LPM or 50 LPM.
Well worth checking out.
Paul.

In the video, he says that a liter of uncompressed hydrogen gas contains 11.48 BTU.

Eleven and a half BTU is not much heat energy, but how does that compare to a liter of HHO?  A half inch soap bubble of HHO will pop like a firecracker when ignited.  I have not tried it, but I suspect a liter of HHO would be quite impressive.  In my younger days, I did set off a gallon milk jug filled with oxy/acetylene and I was worried that the neighbors 1/4 mile away would call the police. I suspect that a gallon of HHO would be more powerful.

I also suspect that a liter of HHO would provide (much) more than 11.5 BTU of energy.