Hi Plani, 103 watts seems about the right order of magnitude for that single wick compared with what I use for my oscillating engines. I suspect that efficiency is way higher than the steam engines are achieving, though to make a real measurement is the reason for my interest in your dynamometer. So far I have done the adiabatic calculations which give a limit for an ideal engine, but I have no idea how much power is lost in friction and so on.
I need to make that dyno.
MJM460