Our Incubator, We chose to use a freezer for the incubator, mostly due to flucuating ambient room temps. with the freezer, our temps. do not flucuate at all inside. We have a herpistat controller and flex watt used as a heating device. With the racks inside the freezer we can easily incubate up to 250 eggs with out a problem. Each bin is marked with the parents and the date the eggs were laid.