Originally Posted by flak-spammer
Actually air cooling TEC (thermoelectric coolers) is quite common but since this has to do with computers it's unlikely you'd find a heatsink large enough to dissipate all the heat whilst still being able to fit it in your tower.
Yes and no...
CoolIT makes air-cooled TEC chillers with not-so-bad results.
I had to combine two of their units to be able to keep my i7 920 in check but I would watercool the hot side if I could. The heatsink gives diminishing results if ambient temps get over 25C, even if moved out of the case.
One unit fits in a casing but case ambient temps are usually a little hotter than normal ambients so it's not an advantage. All my chiller setup is laying on the floor besides the tower for better results.