> They claim it produces 250 liters of hydrogen per day "Mole of any gas under normal conditions - ~300K, 1 atm - occupies 22.4 liters of volume (Avogadro's la

> They claim it produces 250 liters of hydrogen per day "Mole of any gas under normal conditions - ~300K, 1 atm - occupies 22.4 liters of volume (Avogadro's law)". Mole of hydrogen (H2) has the mass 2 grams. 250 liters corresponds to 250 / 22.4 = 11.16... moles = 22.32... grams. So the unit above makes ~22 grams of hydrogen per day. A better article with more data would certainly be welcome.