Do closed interior doors (bedroom) affect the performance of central a/c?
According to the our utility provider, it makes the central air conditioner work harder. The air is supposed to circulate, not just work in one room. The fan circulating the air will even out the household temperature. Depending on where the thermostat is located closing doors could either cause your AC to shut off too soon thinking it has reached the desired temperature or continue working because it thinks it has not. In my case, the thermostat is on the first floor and cold air sinks so closing the doors upstairs makes those rooms hot and the AC thinks it has reached the temp I programmed. According to their website, it uses more energy to keep the doors closed.
