Hello! I'm a new ball python owner and I seem to be running into a problem with the ambient temperature in my terrarium. It never goes over 73, which is too cold for a ball python (or so I've read). My hotspot is good,usually around 87-90, but the cool side and ambient temp are too cold. Humidity is also fine, usually in the upper 50's (57-60). The only heat source I'm currently using is a Zoomed UTH (yes, it's connected to a thermostat don't worry about that either :).

I am currently an Exo-Terra 36x18x18. Yes, I am aware heat and humidity are harder to maintain in a glass terrarium with a screen lid but I do not plan on changing terrariums any time soon. Maybe in the future, but not now. So, I need solutions to this problem that apply to glass terrariums.

Ive thought about using a CHE. Would this be okay? If so what wattage, and is a dimmer or t-stat better?

And just so nobody gets nervous, I do not have the snake yet. I'm waiting until the conditions are right within the terrarium.

Thanks a bunch!