I don't have it yet. It's 24-24-24. I know its to tall but I'm getting a heck of a deal. The house stays 72 in the winter 78 in the summer. I have a stat but only one for at least 2 weeks. I can always leave the snake in the tank until I get another one. But if the rhp would be enough I could use the one I have for that. Just wasn't sure if you use the rhp for ambient temp and a uth for hot spot? Or if I can do both with the rhp?