Certain Fans have different ways of operating, Some operate hotter than others. Lower the CFM is on the fan and being Bering operated itll have less heat output.

But no matter waht fan you get they all give off heat, which is why its recommend to keep them on at all times and adjust thermostat accordingly to get your temps you like. The fans help keep the rising circulating to keep it even.

Temps at the top of my incubator are 90-91 but on the shelf on top is only 89.


What type of Fan are you using.

These are the ones i use and the bearings only reach 96F. Their ran off a computer powersupply i had laying around jumped. I have only 2 running
http://www.newegg.com/Product/Produc...82E16835150007