> Another point to bear in mind is that you don't have 700W wildly trying > to find it's way out of the cavity - most is absorbed by the load in the > oven (which should never be used empty). You wish ;-). Power distribution depends on the impedance ratios of the 'hole' and of the food. I suspect that running the oven with the door open will reduce its 'food' power by 50 to 80%. This because any MW still heating it will pass through it once instead of many times and the power distribution would correspnd to that of a 'hole' the size of the open door with the food obstructing part of it. Ok, I admit this is extreme. Peter -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu