Just make sure whatever UTH you are using is both controlled by a tstat or rheostat and does not cover more than 1/3 of the total floor area of the enclosure.
Yes, I'll definitely have a tstat controlling it.
This set up is actually for a Borneo short tail python so I plan to keep the entire tub at an ambient of 82F with no basking spot per Kara Glasglow's advice.