Is it better to run your AC on low or high?
Is it better to run your AC on low or high? The AC will probably need to run about 15-minutes for every hour, saving you energy. Running at a higher setting and setting lower, only as needed, will save more energy than running at a lower setting all the time. How low should you set your AC? “Do not run the AC unit below 70 degrees indoors for the same reasons — it can freeze the evaporator coil,” he says. With some systems, that threshold might be 65 or 68 degrees. It depends on other factors, too, including airflow and...