Rich I get that, but the op's point is that the hub is heated and the transport is not. If you plan for the trasport but then the shipping box is moved to a warm room the snake over heats. If you plan for a warm room the snake freezes during transport.

My question is what is the internal range that is tolerable? I'd guess that 90 to 75 internal temps would be ok. The problem is one of thermal loss and gain. I don't actually ship but I find the problem of thermal regulation very interesting.

I actually believe that what ever ppl have been doing works as snakes are shipped safely all the time. I do know of snakes arriving with a temp of 64ºF that ended up fine but that is one cold ball and is certainly not ideal.

I am wondering if there is some cheap system that would allow a bit of temperature control inside the shipping container. A bi-metal vent was my first thought.