Help with a few questions please

Happy Friday all. Please give me your thoughts on a few things. First i am wondering which causes more harm to electronics, switching them on and off daily or leaving them on and the constant state of heat they have? Is it better to turn some components off daily and leave others on? My Marantz 8805 seems to get hotter than my Mc8207 amp. Second I’m trying to decide if a dedicated listening room in the basement would work. I could have an 11’ x 22’ room but the ceiling would only be about 7’8” when finished. I have Kanta 3s in the family room now and feel I would like to stay with a full range floor stander but I’m worried the ceiling is too low. This would be a second system with new components and speakers. Thanks for your input.