Welcome! Here are the website rules, as well as some tips for using this forum.
My home's 2-ton central AC was just tuned up. During today's hot weather - 90* (Boston) our system was running non-stop. Is this normal? The house has cathedral ceilings, so despite the insulation, there is a lot of heat gain.
I my system undersized, or is this the way it should be on a hot day? We keep the t-stat at 73*.
Steve from Newton, MA