September kicks off the fall shoulder season, when cooler mornings and milder evenings often mean you can give your heating/cooling system a break. Open windows, use ceiling fans and enjoy the fresh air whenever temperatures allow. It’s also the perfect time to schedule annual HVAC maintenance before colder weather arrives. Because demand is typically lower during the fall, heating and cooling professionals often have greater availability, making it easier to book an appointment.                               Source: U.S. Department of Energy