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Old 10-29-2010, 10:39 PM   #1 (permalink)
Ryland
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Any problems with using Peltier junctions for heating?

As it gets colder I've been thinking about how I would add heat to my electric cars and I started reading up on Peltier junctions, solid state heat pumps, not the most efficient form of heat pump but they are small and no moving parts, someone on Ebay as a 545 watt 12 volt peltier junction for $30 with shipping that seems like a pretty good price, my thinking is 4 of them to run off my 48V battery pack, drawing 2,200 watts but being able to put out more then 2,200 watts worth of heat! and in the summer being able to cool.
The idea is to heat, so even if the hot side only gets 10% hotter then a resistive wire it's still more efficient then a resistive wire, the cold side could also be used to cool the air going in to the motor, thus taking low temp heat and amplifying it.
Any one want to pick this idea appart?

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