I built this unit for a good friend of mine here in Washington. It was a monster unit.

There is aan 8" section about each of the habitats and thats where I placed heat lamps which used a 50 watt bulb. I was surprised that that was engingh heat to maintain 80 degrees in the boxed habitat section.

you can also see the 4" hole at the bottom which gave access to a pull out tub. He ahd Black Texas Rat snkesa and a Bal. I wounder if he still has it ????