Corn snake enclosure setup and heating

[Bogertophis]

I live out in the country so I'm surrounded by snakes pretty much and they usually find their way into our basement and chill out. There was a black snake down there not to long ago but I left him alone. My first snake was a baby corn snake that happen to be out on our front step trying to get in the house and this was during the fall season so I took her or him in and I had that snake for maybe 3 or 4 years and for being a wild snake it would let me reach in and pick it up after awhile. It eventually got free because my mom found an exo terra cage at Goodwill for like 10$ but after handling one day I forgot to close the front doors and he got away. I pretty much did no heat for him and I had no issues. Would always eat when i had food even coming up to the glass waiting for it and then would look at me wanting more. That's pretty much why i got another one because they're so easy to manage and handle but the ball python i got was way more then what i thought it would be

All snakes need some additional heat for digestion & for their immune system to function optimally (to keep them healthy). Corn snakes don't need as much, but
they do need some. UTH is very cheap to run, to give them a warm optional area of about 85*. The fact that one survived without heat is like saying you can live
in prison on bread & water...that's not the best life & I'm sorry, but when you keep a snake captive, you owe them better than "no heat"...their bodies have evolved
to thermo-regulate...they need options. They cannot tell you how bad they feel internally...so please don't keep a pet snake if you aren't willing to provide
proper care.