[Chad]

Here is something I did..

take a MJ1200 - I got a nice sized cooler and took 2x 1 litter bottles. Have a tube in the tank, take the tube that is now in the tank and coil it around both 2 - 1 Litter bottles (filled with water and frozen), then have the PH inside the cooler to pump the water back up to the tank. Using a temperature controller you have the controller turn the pump on when the tank gets too hot.. and shuts off when its too cold.. I also filled the cooler up with crushed ice once. The plastic tubing does not transfer heat too well, so you really have to pack it in there.

I have no pics unfortunately. I dismantled it last summer and used it for something else.. but I will be doing it again this year..