Our large BP enclosure uses heat tape and a regulator, our small BP enclosure uses heat tape and a rheostat. Our Red Tail's enclosure has an IR heat lamp and heat rope wound in a zig zag pattern. All of these are taped under the glass to prevent direct contact with the animal, and use something to regulate the heat. I wish I could afford herpistats.. but.. Im just a soldier.. I will up grade as I can.