I just got my Herpstat ND set up last night and it doesn't seem to be heating anything at all. I set to 92 degrees when i got it set up, and an hour later when I came back and the tempeture wasn't increased, I turned the power output up to high. Then it still didn't seem to do anything when I went to bed, and when I woke up this morning I just set it on the highest setting. When I got home from school just an hour ago, it still hadn't increased the temperature except maybe by a couple degrees. Are there certain brands of heating pads that don't work with thermostats?