Our basement stays pretty stable 75 in summer, 60 in winter but I hibernate the colubrids down there so I keep the boas and pythons in our bedroom upstairs. It doesnt help that our weather is so unstable here. I have the herpstat 2 to control the RHPS.
The bedroom is hot in summer even with the AC, its the room that gets direct sunlight. But its cold in winter because of the giant window.
We currently rent because we moved for my son to go to school but will be moving back in 4 years and will have our own place again. So I have to work with what we have for now.

Currently the probes are pushed in the middle vent in the back of the cage and hang down about halfway. I have the Herpstat set to 85 but have been moving the temps around trying to get things dialed in..I even put in a shelf under the RHP to see if I could get a hot spot and it didnt seem to work.