Ok, here's the deal. I set up my incoming ball pythons cage (plastic tub) and my warm side is being heated by a UTH controlled by a T-stat and the temperature is always perfect. The problem is the cool side only gets to about 73 degrees max which is way too cold and I know that can cause health issues and I don't need that happening with my brand new snake. I was wondering what the best idea would be for getting that side warmer besides buying ANOTHER UTH and T-stat for that side? Or is that my only option? Or a space heater maybe?