Gogarty wrote:
My understanding of flame driven refrigerators (they used to be common in
homes -- Nash Kelvinator, was it?) is that the unit or at least the working
guts must be absolutely level at all times, which makes them impractical for
use on boats.


That's because of the potential interaction between the metal of the
heat exchanger and the solutes in the working fluid.

Newer & better stuff nowadays, they no longer have to be held perfectly
level.

The issue now is that the exhaust has to be vented. They do work better
if level, though.

DSK