A couple of things. Do they ever get burned by the bulb?
Seems burns are in alot of articles.

Do you just put warm water in the second bowl or is there some kind of heating unit? I really like this idea.

I know these are other devices but what are your opinions on heat cable and flexwatt tape (rather than an under tank heater for babies). I know heat rocks are evil killers but thought maybe the cable would work for belly heat on a lizard that didn't bask. I've never used either product.