I'm aware it should be under the enclosure, however my friend who has owned multiple BPs, bred them and is well-rehearsed in veterinary medicine said he always put his UTHs on the side and his BPs were fine. I did a lot of reading so I was aware they are generally put under, but with the advice of my friend and having read a few posts, I decided it was best on the side.
I'm feeling a little overwhelmed right now lol. I did my best to buy all that he needed and I know he needed more hides and we would need the thermostats and otherwise but nonetheless.
Doing my best.
Thank you for all the advice.