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Originally Posted by jaydee
That would be ideal but I have no idea how to do that. In fact that could be a commercial product if someone could figure it out. The problem would be adjusting voltage on the power supply.
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For a year now, Joe and I have had a working controller that adjusts tec power according to temperature from a thermistor. We could keep X point at room temperature, and when the heat source went up or was removed completely, the tec would keep at the same temperature.
For example, the controller is on, then you turn on your computer, the chip was forced to remain at the same temperature. The computer could be turned off, then the chip would stay at room temperature, or a temperature of our choice.
With creative application, it could work with your tecs in your water experiment. It has enough amps to handle a couple of them. Joe and I havent decided if we should market this or let someone else do it. We suspect there isn't enough interest to warrant us putting the money up for it right now.