Quote Originally Posted by ThunderHeadsGirl View Post
Under tank heaters have helped some people, but personaly I wouldn't recommend it. We had one when we got our first snake and she was in a tank (before the collection grew and we had to get a rack lol) and after a few months it got incredibly hot without us being able to tell. It burned our snakes belly bad she's healthy now but I would avoid all problems if possible. I completley understand about the money for anything else, but it would definitly be best in the long run! Good luck!
This is exactly why all heating sources should be controlled with a thermostat, which I assume the OP already has. No lamps or UTH's should be used without one.