Congratulations on the eggs. And thank you for responding. It sounds like I'm on the right track. This enclosure is 2 x 4 closed chamber and has two tortoises in it. Thanks again.I will chime in!!
I keep my adult group in a closed chamber and I do have a CHE on a thermostat set at 80. There are areas of the 6x3 enclosure that drop to mid 70s but no lower. The humidity stays around 60 to 70% except in the basking area. Mine prefer to stay on the more humid side most of the time. I'm guessing they are pretty happy with the setup. I have a group of 1.4 and have gotten 13 eggs in the last year! So far 4 have already hatched.
Hope this helps!