I'd love to know how the efficiency of this refrigerator compares to a typical household unit. Edit: Here's Wikipedia on the subject: http://en.wikipedia.org/w

I'd love to know how the efficiency of this refrigerator compares to a typical household unit. Edit: Here's Wikipedia on the subject: http://en.wikipedia.org/wiki/Thermoacoustic_hot_air_engine#Efficiency_2 http://en.wikipedia.org/wiki/Thermoacoustic_hot_air_engine#E...