Interesting stove which I haven't seen before.

I built and use a Penny stove (instructions here: http://www.csun.edu/~mjurey/penny.html ) with SLX denatured ethanol. It's a simple stove, but there are a few tricky gotchas.

Have you ever built or used a Penny stove? If so, how does the White Box compare with it in construction and performance? The test results on the link posted above seem to put it about the same as the White Box.