Be aware that the semiconductor thermoelectric coolers are VERY inefficient.
For every watt of heat energy (can I do that?) you absorb from the "cold"
side of the cooler, you need to dissipate something like 10 watts from a
heatsink/fan on the "hot" side (~10% efficient ?)  There were some SCATHING
reviews of the CPU coolers marketted containing such devices (to keep your
CPU cold, you have to heat up the rest of your computer quite a bit!), and
the "cold drink cooler" application is pretty iffy as well.  The devices
shine when you have to get something very cold but dissipate very little
heat - say cooling an image sensor to reduce noisee, or getting low temps
for far-infrared (heat) imagers.  A normal refridgerator  does MUCH, MUCH
better for removing large amounts of heat at not-so-low temperatures (since
they're heat pumps, the "efficiency" is much greater than 100%)

BillW

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