i got the impression from ppl who may mis informed me that the egg temps is the most important, along with the humidity.

how would flexwatt taped to the sided of the cooler keep air temps up inside.

way i was told and shown was to have the tubs set up and the thermostat probe by the eggs in the inside of the tub. so the surface reads 89.

So if i can maintain a 89-91 air temp inside the cooler then heat tape on the tubs the eggs are in is not needed. just hang the probe in the middle of the cooler for even heating.