My ZooMed seems to hold a more moderate temperature than my ExoTerra--I don't dare mount the ExoTerra on the bottom, only the side, because it gets up to 140F and the snakes'll burn themselves. But even my ZooMed is around 120F. The snakes won't actually sit on it; they sit NEXT to it. Good thing they're smart!

I'm going to need to get a decent rheostat for both of the UTHs.