I have the exoterra that's I think 36"x18" and 18"tall. I use an UTH for the hot spot and a RHP for the ambient temp. Ambient stays about 84 on the hot side and 79-80 on the cool side. Hot spot is 88-90.


I tried a CHE but because it heats a smaller area you get a really high hot spot if you want to heat the whole enclosure. Plus because of the really hot spot it dries everything so humidity is harder to keep where you want it.

The RHP spreads the heat out so much more than the CHE I only have to spray the enclosure with water a couple times a week.