Peter, I do not see how it would be possible, because if water is atomized
(it would cause also loud sound instead of observed gentle boiling sound),
it cannot climb the chimney, because atomized water quickly returns into
liquid in the closed container if velocity is low. This is also the reason
why water traps are working.
And if there is low quality steam, then steam velocity cannot be high
because water mass flow was low, few gramms per second. So no matter how
you look it, low quality steam is physical impossibility with ecat.
In different ecats 40-80% of input water was vaporized. This can be
calculated from steam pressure, that naturally correlates with amount of
steam produced.
—Jouni
