SDSI has developed a method of generating Hydrogen that is useful for fuel cells requiring accurate flow-control of Hydrogen over a constant temperature. Our non-electrical method uses a novel technique in material science to control reaction rates (4.5 cubic-feet in 40 minutes at a steady rate and constant temperature of 90 C, faster rates possible with temperature above 90 C) so that only Hydrogen is collected without steam or excessive heat. Read more about how it works (SDSI H2 Design) - please note that this reaction is fairly well known but our improvement is in controlling the reaction to even temperature. You can download the Hydrogen calculator (screen-shot below) to see how this design will work for your application (Setup and Install version 1.3 MB). E-mail us for more details moreinfo@signaldisplay.com.