This thread was completely theoretical. I just wanted some opinion on the feasibility of this since I don't quite understand electronics and electrical engineering. Hopefully some day TEGs will be efficient enough that this could be feasible. Or miners can be made more efficiently to draw less power and produce less heat.
No.
This thread is insufficiently theoretical. It is a classic example of preying on the uneducated and undereducated. If I remember correctly the 2nd law of thermodynamics is taught in decent schools around 8-9 grade. So anyone who would fall for it has a mental capacity of approximately 15 years old high-school student.
Theoretical in that I have no plans of implementing such a thing and I am not encouraging nor claiming that this is a good idea at all.