Well, Kaa is in the bedroom, and we keep our house hot... usually 80... and the bedroom stays hot like that all of the time. Guests hate it, we love it

I took the light off today and did the UTH. I covered 3/4ths of the mesh lid with thick plastic wrap. The substrate (coconut fiber - bed-a-beast style, compacted tightly) is very moist, and the humidity is doing good. I now have two hides, one on the warm end, one on the cool... so far so good on the humidity, and I am waiting to see how the UTH does for heat to decide if I need another source.