Possible that hes just using activated Randys Nickle. Considering that he would want large surface area I would expect him to use Randy Nickle anyway.

Uhm.. you mean Raney nickel - Enkidu

http://en.wikipedia.org/wiki/Energy_Catalyzer#Attempts_at_theoretical_explanation

Bose-Einstein condensation at atmospheric temperatures? My knowledge of BEC says this is even less likely than cold fusion. Furthermore, cold fusion has never been observed in any Bose-Einstein condensate.

"Its hard to think about these things with a conventional mind set, many facets seem counterintuitive.."

 absolutely.....
        but if you look back no many 'pivotal points of science's history',, you'll see that its peppered with sceptisism, and disbelief--there have Always been "naysayers" who will sometime be right, and sometimes, be wrong,,not just "mistaken",,but "Wrong" and then there's those who "might Be Right for a while",, until, a "Better Version, of The Same Principle, comes along"--Electronics being the most Obvious and recent example of such things

  How many "breakthroughs/" in science HAVE occurred, due to people "thinking outside the box", shit, even 'thinking outside Virtual Unlimited boxes!'

A:   HEAPS

 I am 'Only an observer' at this stage,,,theres much more to be seen yet...I have No Judgements

 and I think its 'the only, fair and reasonable Pov to have',,coz,, I certainly am Not in a position to Argue with the "Conceptual Science"........and Somebody Should "have a go" at conventional thinking,,,why not, particularly if it seems to be "going somewhere" in the right direction.

 Hyppy

My hypothesis is.....wait for it.....

 What you may be seeing is an effect of dissolution. We know that as ions dissasociate in solution the give off heat. In this case its H2 forming its ions as its dissolved literally into the metallic solvent.

I think this is actually how rossi interprets part of the process going on in his device.. he mentions that the most important part of his invention is how to treat the nickel so it will produces nascent hydrogen in the system.  This is by combining it with 2 mystery substances and creating a certain particle size/surface morphology, and then of course the pressure and heat.

Langmuir, a noble prize winner did a lot of work with this atomic hydrogen, spawning atomic hydrogen welding.  There have been so many anomalies discovered with hydrogen involved.  Plasma electrolysis is known to produce an overunity amount of energy as heat... the crazy thing is that when they can get this effect sustained the pd/pt electrodes end up covered with many different elements in crazy patterns which signify incredibly high energies in a tiny area.

Im not surprised someone harnessed these effects, both these fields have been active for longer then most people realize, but the constant anomalies have thrown the scientific community through a loop.  To have such a high power output is not unheard of with simple metal lattice hydrogen/deterium reactions in literature, but this guy has been able to sustain it and control it like no one else.

If this turns out to be what it appears its going to be one hell of a 2012, heating and power generation fossil fuels will be threatened and I have a feeling the precious metals market is gona get interesting.  If in the govts research they find its easy to weaponize the situation will get real sticky, a world saving technology outlawed in the name of security with all the oil companies lobbying to put anyone caught with a h2 tank in Guantanamo. 

But in the end its the only functional way I can see this thing generating excess heat as I do not believe it to be a nuclear reaction if any at all is taking place.

There should be a good amount of gamma radiation leaking from the machine since he only has a two cm lead wrap to protect it that should not be nearly enough which is one of the reasons I doubt nuclear if any reaction is taking place.