can I ask, you didn't attach the UTH to the bottom of the cage, what is it lying on then? I use the rubber feet for my cage as well but I attached the UTH to the bottom because it sits on wood and the darn thing does get hot....I worry about burning

I haven't been using a thermostat but I was packing about 2" aspen on top to avoid too much heat and it seemed to work out, but I ordered a Johnson thermostat because it's the right think to do.

anyways, just curious