I have a 4x4x2 Cages by design cage with an opining at the top where I have a ceramic heater bulb and shield. Sits slightly above the screen mesh, and the temp is set at about 18" down. Snake "JC carpet" adjusts his position to his liking. Sleeps and digests at the top, goes down for a drink and to feed.
-----
1.1 Blackheaded pythons
1.1 Woma (Juvie female)
2.1 Aussie Olives
1.1 Timors
1.0 Angolan Juvie
1.1 Savu
1.1 Juvie Bloods
1.1 Juvie Balls
1.1 IJ Carpets
1.1 Coastal Carpets
1.2 Macklotts
1.1 Papuan Olives
1.0 Jungle Carpet
2.2 Scrubs (on breeding loan)
0.1 Jungle/Diamond cross
0.1 child, CB
0.1 wife, WC