So I noticed in another thread (newcomer looking...)that there was a description on how to set up a tub for your bp

Starmom said:
quote:If you just have a tub (not in a rack)........

and she proceeded to explain what you need for a tub....

...So, my question is...whats the difference between a rack set-up and a tub setup???? How do you know heat and humidity is correct, that there is a temp gradient, etc. I noticed when I bought my BP he was in a large set of shoeboxes in a rack...but there was obviously no heating elements. It was warm in the room, but not 80 degree warm. Just curious about the differences. Thanks....