Quote Originally Posted by Newbiehelpme View Post
Hiya. So I have my gun and am working out my next issue although am not sure if it's an issue that's going to happen anyway.
So, I've tested temps a few times. First two times we're slightly warmer (testing within minutes of each other). Third test stated 31.7c great. After this, temp dropped to 30.9c and remained at 30.8/30.9c. I've turned stat up minutely and temp now reading 33c under bulb and 31.7c in hide. My main concern is the fact the temp is going up and down still and I'm not understanding how to get it to one temp and keep it there. Is it a case of the stat having a lowest temp and then turning the heat on more and vice verse for to hot?
Minor fluctuations are gonna happen especially with a CHE. If you want to really dial it in, a lot of people use proportional thermostats, like the ones from Spyder Robotics (who come highly recommend from other users here). Those types of thermostats will change out much power they're pushing to your heating elements depending on how much heat is needed to get back to your preset temperature.

Something like what I use, and what you're probably using, is a simple on/off thermostat. The issue I've noticed using those with a CHE, is it takes awhile for a CHE to warm up, and then by the time it gets hot enough to trigger your thermostat to shut off, the bulb itself still stays pretty hot for awhile after. That's probably, if I had to guess, why you're seeing the minor fluctuations.

You just have to remember that these guys come from a place where the temp varies depending on where they are. I think a degree or two either way, +/-, from where you want to be is fine. I've had to learn to trust my snake to move to where he needs to be to be comfortable.