Right now, I dont have anything controlling my UTH. I only have one and its pretty small. Its under his hide log. His warm side never gets above 90 F, I have a heat controller on the ceramic heat emitter I use, it would get too hot if I took it off. Im going to get rid of the ceramic heater and the UVB light and add a UTH. Also, Im going to cover 3/4 of the top of the cage with a damp towel. How does that sound? Do you prefer 2 UTH's side by side on the warm side or just one big one to cover the entire warm side? I really thought I had a nice cage set up for my new buddy, but now Im starting to think that I've got it all wrong. Thanks a lot for your responses.