Thank you very much!
That is what I was going to do (from The Frugal Herper's Snake Rack )
But I don't mind having lids. (unless it is too high, I will have to do something about it.)
But it is always a option, I have a huge pink styrofoam insulation sheet that I can use.
I will look into getting another ranco, I've always wanted on for my reef, but never has the need. (I use a aqua controller JR.)
It also amazed me how much the up charge is for a "pre wired" unit. (I ordered my unit from a HVAC website.)