This is my new 21 plare dry cell generator which is now available. It can be refigured to suit your application if needed. I’ve ran this unit with three, four and five neutrals plates and found that four neutrals work best for low amp consumption with low heat generation. If you change to three neutrals it produces more HHO but is slightly warmer, yes, warmer not hotter. This unit realy does run much cooler than I expected.