I would love to see the results of your testing.

If it seems like you have one too many volcano stoves, I might be able to take it off your hands!

Unless it surprises me in performance, I'd probably let the Thermette go. It's ungainly, the largest of them. I was drawn to buy it because it is copper.
;-)

it also works and was made for use with the Borde stove.



the burner head,a coil with a flame spreader that turns
and opens a tiny needle valve adjusts the height of the
flame..it roars and the spreader gets red hot..





a better shot showing the entire stove..it burns
unleaded gas or Coleman fuel..hard to find now they
are more of a collectors item.i use this one on canoe
trips as a second stove for boiling water. i have been
told the flask has a cork rather than a screw top to
prevent blow-ups..