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Originally Posted by ricecrispi
I still don't understand why he got better temps at 12.3 V?
Anyone explain?
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TEC's have an efficiency sweet spot, usually around 70~80% of their Vmax. The higher the applied voltage, the more heat is generated by the TEC itself, with only a minimal increase in heat pumping capacity. The added heat dumped into the WC system usually offsets any theoretical gains of running at a higher voltage.