We are thinking of using a bathroom ceiling fan plugged into a dimmer that plugs into the wall, think this type fan will be too much heat?

I heard dimming the fan may also cause it to run at a higher temperature?

We figured the fan inside the cooler would be too much and disconnected it and also disconnected the compressor below, leaving only the light working

What a difference this will make after using a repti-temp t-stat and a mini fridge last season.

Thanks for any tips from those of you that have already done this type of incubator,
your help is much appreciated