Step 1: The Magic Fermenting Box
I now have a fan and two switches to control the two elements that will regulate and circulate my heat. The last item that is need is a thermostat, these will run anywhere from $80-$120, all depending on what type you get. The thermostat that I used came from Johnson Controls and they can be purchased here, this device will turn the power on and off to the box based on temperature.
Now go find yourself a vessel to make the garlic in, a device to heat the box with, a thermostat, and based on the size of the box, you will need a fan.