Unplug that RHP until you buy a thermoSTAT for it. This time of year too much heat is much more dangerous than cooler temperatures. Meaning the rooms in your house won’t get in the low 60s and below. Excessive heat is very dangerous for your snake.
My intent here is to explain things in simple terms. I’m Not talking down to you.
The thermoSTAT is what controls the temperature output of the RHP to keep it constant. Just like the thermostat on the wall in your home to keep temperatures constant.
The best Thermostat for cages are considered to be the Herpstat by Spyderobotics. For running one heat source they have a few models that run in the $100 range and up. A few even below $100 I believe.
The Vivariums are almost as good as the Herpstats, but have less bells and whistles for a similar price.
A lot of Folks start out with starter thermostats like InkBird and other similar brands for around $30. Some folks have had excellent performance and others have not. The problem with the cheap ones is when they fail they fail in the WIDE OPEN mode and cook the animal. The better ones shut the heat source OFF when they fail for the safety of the animal.
A lot of people say that an InkBird type works great UNTIL it doesn’t. And I’ve seen posts of them failing within a few years. El Ziggy here on the forum is well respected and uses them with confidence.
I’m not being judgmental or trying to tell you what to buy, that’s your choice. But UNplug that RHP now!