any advice and suggestions would be greatly appreciated. my temp during the day is fine it stays about 80 t0 82 but during the night my temps drop from 78-75. i cant keep it up during the night. i have a UTH that is connected to a rheostat. im getting T-stat tomorow. but i will get up around 1 to check temps and it will be around 77 or 76 and i will turn up my rheostat but it doesnt do anything and i dont want to turn it up to high cuz my girl will be on the hot side and i dont want to burn her. i moved her to my closet cuz it has a more stable temp and i keep the door closed all the time but m still having the same problem. i do have a heat lamp but i dont want to turn it on cuz then i will lose humidity. and help?