Well, I hate to show how stupid I am, but hopefully someone will learn from my mistake, and avoid making it themselves. For those of you who have/will have heat tape under your enclosures, please make sure you leave an airspace, LIKE THE DIRECTIONS SAY. If you don't, and you decide to put a thin piece of sheet metal over the top of the heat tape, (to spread the heat out over a larger area under the rubbermaid) you will end up with this:



I hereby bestow upon myself the Stupid Person of the Month Award!