Don't be so quick to dismiss this. Maintaining a temp of 140F in a water bath for 72 hours doesn't require that the heating element be on all the time, just as keeping your refrigerator or freezer at temp doesn't require constant power. I know it seems strange. Just maybe give it a chance until you've had properly cooked sous vide meat and then make a decision.
12/16/14 at 2:54am