I dont really understand how they work. most people ive seen have put the RHP in the middle of the ceiling.
But, if you put it in the middle, you wouldnt have a hot spot in your tank, right? if you were using just a rhp, wouldnt it be smarter to put it just on one side (say the left side), and then would it act like a heat lamp?
It would really help to know the dimensions of your pvc cages, as well as the temperatures needed for your snakes. Also where / what brand is your rhp? Thanks man
EDIT: Also, Im considering BOAPHILE plastics, anyone tried these enclosures before?