Your thermostat comes with three settings: on, off, and auto. On those rare days where the temperatures are perfect 24 hours of the day, you can flip the setting to off. But for the rest of the time, you have a choice to set the HVAC fan to auto or on. What should you do?
Auto means that the fan will only turn on when your furnace or air conditioner is in operation mode. Once the desired temperature has been reached, the entire system shuts down until the next cycle begins.
On means that the fan is continuously running and blowing air from your HVAC system even when the system isn’t heating or cooling the air.
Is there a right way?
Setting the HVAC fan to auto:
Setting the HVAC fan to on:
What should you do?
Start by checking with your system’s manufacturer's guidelines. They will prompt you in the best way to gain maximum efficiency from your furnace and air conditioner.
You can also work with your HVAC technician to ensure your equipment is working properly and is providing you with both maximum efficiency and savings.
Have additional questions? Just ask.
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