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CoyoteOldMan (BTW - double the temp, 16 times the heat loss according to Stefan-Boltzmann)
Quite correct, shows how important it is. Of course that’s for a perfect black body. In an espresso machine it works out about 4 times. You can try it out yourself..set your Evo group to, 46C (if it will go that low) measure power consumption once in the steady state, then up it to 92 and remeasure…I’ll bet it’s about 4 times more power?
An interesting experiment for someone…. challenge thrown out there 😀