Thanks for the info guys- I'm gonna check out Animal Plastics as well.
Do you think a radian heat panel inside them would be necessary to supplement the flexwatt ? The room my snakes are in is generally 72-73 degrees.
Yes, the flexwatt will only heat the area right above flexwatt. You will need a RHP to heat the air. When using an RHP, there really is no reason to use flexwatt.