Here is what I have used for the past 4 years. I dont know why everyone gets worked up over incubation so much? Its simple really..

Old freezer. with window cut in door..$ = 0 (trash picked it!)


Heating . little space heater w/built in thermostat.. $ = $14.00


in each bin I stick a little thermometer with a probe in and go from there.

Works for me lol! Outside of the box again ?