Bill B. : You've got me swinging. My First thought was that this was simply a very efficient Thermocouple, and that the C.E.O. was a business School Graduate and no
kind of a scientist, but one would hope that he was better prepped by his people than to allow that to happen !
Wikipedia says that a fuel cell is : A device that converts the Chemical Energy from a fuel into electricity thru a chemical reaction with Oxygen or an Oxidizing Agent.
About the only other things kinda common to "fuel cells'' is they don't have to store the fuel within themselves, and though heat is often a byproduct very little energy
is lost as heat energy (at least as compared to an I.C.E. )
It is posible that some new Oxidizing Catalyst 'never before tested'

at this operating temperature could react Carbon Monoxide into Carbon Dioxide freeing a single
electron, and endlessly repeating the cycle. There have been many breakthroughs in coating Catalysts onto highly porous mediums One molecule thick and creating
incredible amounts of surface contact area !!
If you used chunk charcoal you made your self, and didn't try to recycle old painted boards into fuel, then I can't see where the catalyst- if its a catalyst would pick up
much in the way of contaminates ! Then again that may be its big secret, a sweet spot in the temperature ranges that the catalyst works in without picking up
contamination !
The C.E.O. said that this process was cheap, we will have to see how much of an effort they make to re-cycle the alleged Fuel cell, if we get a this is how you dispose
of your old fuel cell and not a ''on receipt of your old fuel cell and $XXX$ we will ship you a new one "!- then all we have to do is wait for the secret to get out !
For the Craft, Think like Fire, flow like Gas ! As always, comments and questions are solicited and are Welcome ! PYRO - LOGICALLY Big AL