mp, I explained it some time ago in another thread somewhere, I have no clue where or when but ill go over it briefly.
The major part of the heat loss comes from the tube that takes the boiling water/steam from the cooker in the bottom of the pot THROUGH the water reservoir (cooling it off considerably) and out the spout on top. What I did was take the spout off, and the tube, I got another piece of tubing that fits over it, a bit bigger and sealed it with RTV to the bottom of the resivoir and put it all back together. Essentially there is a blanket of air between the hot water tube, and the tube now holding the cold water off the hot water tube. The heat does not dissipate nearly as much through the air blanket as being in direct contact with the cooler water so the water now comes out the top of the pot at around 200 degrees.
The tech does sound like a really good pot but god, I have too many pots already here, and for the money it cost, I can't at this time justify getting one for myself. For someone who doesn't have a decent pot then Id have to say yes get it.
Aaron