In trying to track down the 'turbo' rocket stove I mentioned (the one with the fan) I came across this: it might be quicker and easier to make, and longer-lastng (especially if we go one step further and mortar the bricks together), than one made from an olive oil tin - and I'm pretty sure we've already got enough adobe mix available.
I'm still pretty skeptical about Andrea Rossi's 'secret catalyst' - but if this thing were ever to succeed in a properly-conducted test, we might be looking at a serious contender for replacing oil as our primary energy source.