The temperature you set your thermostat to in the fall will depend on whether you are using your heater or your air conditioner. In early fall, when your system is still set to cool down, it is recommended that you keep the temperature between 74-76 °F. This will ensure your home doesn't get too hot during the day and doesn't get too cold at night or in the morning when it's cooler outside.

However, if you have switched your system to heat, it is recommended that you set the system to 68°. This means that if the outside temperature drops significantly, your home won't get too cold, but you won't have the heater overheating your home either.

Should I turn on my heater in the fall?

Many people are unsure of the best way to heat their homes during transitional seasons like fall. Early in the season, we may still need our air conditioners. However, the temperature starts to drop at night, and you may feel cold. When this happens, you may need to turn on the heater to combat the cold. That said, some homes are set up in such a way that turning on the heater, even for a short period of time, makes the home too hot and stuffy.

This may result in you needing air conditioning to counteract the problem. This can lead to a back-and-forth between heating and cooling. When you constantly course-correct your HVAC system in this way, you end up using excess energy and can struggle to reach a stable, comfortable temperature. Therefore, many people try to delay the use of their heater for as long as possible.

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