For those who have not followed this closely – here is the HydroStik at Amazon
http://www.amazon.com/s/?ie=UTF8 <http://www.amazon.com/s/?ie=UTF8&keywords=hydrostik&tag=googhydr-20&index=aps&hvadid=31836180062&hvpos=1t1&hvexid=&hvnetw=g&hvrand=911050133634104149&hvpone=&hvptwo=&hvqmt=e&hvdev=c&ref=pd_sl_8lx5y0uvt7_e> &keywords=hydrostik&tag=googhydr-20&index=aps&hvadid=31836180062&hvpos=1t1&hvexid=&hvnetw=g&hvrand=911050133634104149&hvpone=&hvptwo=&hvqmt=e&hvdev=c&ref=pd_sl_8lx5y0uvt7_e Which is loaded with LaNi5 – a good alloy for absorbing hydrogen. It looks like it costs Dennis 25 bucks per sphere refill, since the cartridge is sacrificed. Thanks, Bob – Do you know if he gets excess heat from H as well as D? You seem to be suggesting that the most heat (most desirable mix) comes from a mix of H and D, is that correct? From: Bob Higgins I have moved west, and Dennis Cravens is just a couple miles away. I visited him recently. In his lab he still has long term tests operating with his spheres (of course, along with other experiments in progress). He said that he charged a HydroStik and then froze it at dry ice temperature. At this temp, the hydride is not releasing any hydrogen and he cut the hydrostik open and added its contents to the sphere. Dennis produces his own hydrogen using a PEM generator and frequently works with an H2/D2 mix that he produces by filling his PEM generator with the desired mix of light and heavy water.