I had everything set up last night, and left the uth and infrared light on to test my temperatures. The ambient temperature of the cage stayed at about 83 all night, but the temperature in the hide rose up to 116. I was using a 10-20g uth so I figured I would drop down to a 1-5g and hook it up to a rheostat. After just two hours, and with the rheostat turned to as low as it could go, the hide temperature was still 97. Any suggestions?