Well I've finally gotten back to my peltier lagering project. I manage to find a small fridge with two large peltier units already attached. I've cut out the top so it can accommodate 5 gallon and 6 gallon carboys as well as Corney kegs. I am in the process of making an insulated cover. Now I need a controller. I want to be able to heat and cool - I love Belgian ales and Lagers. This means a dual control. Problem is the I got the fridge for $50 new and a dual controller is at least $60 to $70.
I was thinking in the long run I might want 3 or 4 of these chambers. Is there some other control module I could get that would handle this? It would need to handle 4 thermocouples and control 8 outputs. It would be nice if I could hook it up to an old laptop to control and monitor. Alternately, something with a web interface would be nice. Any ideas or suggestions?