I've been trying to find a way to keep Ihys' tub warm both ambient and belly without having to heat up the whole house or trying to rig some lights/infared onto the tub (especially as the lid isn't clear).

I know some big breeders just heat their rooms to a certain mid-point and don't provide any sort of gradient yet the snakes do fine and are happy.
Plus I came across a discussion on another forum while searching about stenothermal vs. eurythermal snakes and that the more terrestrial/nocturnal the snake the more stenothermal they are the more they prefer to have an optimum temperature.

SO I was thinking of rigging some flexwatt on the back wall of his tub and some on the underside and hooking it up to the thermostat at about 82-84 so he'd have a constant appropriate belly temp and ambient temp.

Would this be appropriate?