Sorry to hear of your frustrations about HHO, jim30jen. By now I am absorbing too much information about PEMFC, after researching it for many hours. It appears that the needed platinum is rather cost prohibitive with a life cycle of just under a year at continuous operation. Not yet ready for prime time. Don't know how Fronius is doing it, but, I'll wait until they have a tested viable system that affordable. Too much inference for one day. I need to relax.