So I had a great idea once upon a time... After being introduced to thermal couples many years ago I thought, "hey!" why not just absorb heat energy out of the air! Obviously this would cool your house and power stuff. After doing some research I found that many other people thought they had a good idea once too and it doesn't pan out. However, I'm still stuck on this idea and I am looking for information like the heat transfer rate of different metals and the volts/amp per surface area. Anyone know a good site?