I have a 4ft tall x 4ft wide x 2ft deep enclosure that I'd like to convert to use to house my ball python. It formerly housed an iguana so all of the heating elements are on the ceiling (a radiant heat panel and two ceramic lightbulb holders). Since the ceiling is so high, the existing heating elements are not really ideal for my ball python who of course likes to spend most of his time hiding on the bottom of his enclosure. He is currently in a 20gal tank with an under-the-tank heater on one side (the kind that sticks to the bottom of the glass on the outside of the tank). This style of heater wouldn't really work with this large enclosure since the bottom is a solid 1/2inch of MDF instead of thin aquarium glass. Are there any other styles of bottom heaters out there that would work inside the enclosure underneath the cypress mulch substrate? I thought about using an XL human heat pad but am not sure how practical or safe that would be in the long term. Open to any ideas!