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Originally Posted by ISoar
Yes there is!
Because of the resistance of the Peltier's wire, you should trimmed it as short as possible, and splice in some thick wire. The Peltier is supplied with thin wire that makes installation easier (goes beteen layers of Neprene = easier to insulate).
My Peltier came with heavy-duty wiring, as I didn't get it from a PC cooling supplier.
Also, if the Pelt power source is a distance away from the Pelt (like mine is). The longer the wire, the greater the voltage drop! Using thicker wire compensates (lower resistance).
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A 226W Tec only uses 24amps (Imax). Welding leads are 1/2" thick and designed to hold couple hundred amps. I just don't see your logic here. 8ga wire should be plenty good.
http://www.powerstream.com/Wire_Size.htm