I guess I am falling for it because of my belief that this is a ZPE/ MAHG type of unlimited reaction where the control loop is everything. I think the hydroxides and energy produced in the BLP reaction were all from an unwanted runaway reaction that destroyed the geometry and allowed the hydrogen to react with other elements beside itself. I think the hydrogen can be forever disassociated and reform inside the different suppression zones created by the nano powder or pores of the skeletal cat. I think his control loop simply became easier to maintain with one resistance heater and cooling loop such that he can risk letting it run longer in run away than a larger unit. More duty factor on the PWM heater, more cooling flow to pull it back out of runaway and less chance for hot spots between multiple heaters.
Regards Fran