Barton and Quad have central air conditioning. In Barton, each room has a thermostat and in the Quad, you control the temperature and amount of heat/AC. It’s really only hot outside for a few weeks in the early fall and a few weeks in the late spring (if even).
From what I’ve heard, the other freshmen five (Hall, Crockett, Cary, Bray, and Nason) are heated the same – some people say they are overheated/hot, so maybe avoid those. They also have no central AC.