ok i made a home made chicken bator cause i was tired of useing my reptile one for chicken eggs. ok well i found a site to make mine by, Gopher-Bator also found chick bator I kind of mixed them both and made mine. well any way i useing the Water heater thermostat. There is a computer fan also in there and the bulb. I put the thermostat around 100F i think, but the temp keeps going at least up to 106F and than when the bulb goes off it goes down to like 89F or so..... So i am cufused on that. Maybe the bulb is to much watt for the bator? I useing a 40watt. Here is a photo of it. I am going to add some wire in there so the chicks wont be able to get to the light, also going to add a bottom part in there.