Quote Originally Posted by Vapor View Post
TECs have two major, major issues.

First, reliability.

Second, power consumption increase vs. performance gain is just awful. Take what your CPU consumes, multiply it by 2.5x, and you get maybe 5-10% more performance. Just an awful performance/watt ratio.
What about low power (20w) air-cooled TEC's used in series used as water chillers?

ie. Rad > TEC > CPU > Pump > Rad