I'm with you I keep it at 77 and have a fan to circulate the air when the outside temp is the same and it shuts off. I have when it has dead air in the house. I prefer the windows open and the air blowing from outside but when it's hot it's hot and I don't like when it's to cold inside. I'm cold all winter and don't want to be cold in the summer just comfortable. It's too expensive to run at a lower temp like even 72... to cold.....