When your furnace turns off, how long should the fan keep going? This depends on your specific heating, ventilation, and air conditioning (HVAC) system and its settings.
But we can look at some common rules to guide us.
Fan Settings
Most furnaces come with a fan setting. This setting allows the fan to keep running even after the furnace has stopped working. Why is this helpful? Here’s a quick breakdown:
- Continuous air circulation: The fan keeps air moving around your house. This can help keep the temperature even and comfortable everywhere.
- Choice of settings: Usually, there are options for how the fan runs. You can have the fan run constantly or when the furnace is on.
Thermostat Settings
The thermostat plays a big role in controlling your fan. It typically has two settings: “auto” and “on.”
- Auto setting: If you pick “auto,” the fan only runs when the furnace is on. Once the furnace stops, the fan does too.
- On setting: Choosing “on” means your fan runs non-stop, even if the furnace is off.
Air Circulation
Let’s talk about why you might want to keep the fan running after the furnace stops:
- Consistent temperature: Running the fan can stop areas in your home from getting too hot or cold. It spreads the warmth more evenly.
- Energy efficiency: It’s important to think about your energy use. Running the fan all the time can use more energy. So, it balances keeping comfortable and saving on your energy bill.
Summary
Your fan should keep running after the furnace stops to help keep your home’s temperature just right and to move air around. How long it runs depends on your HVAC system, its settings, and your preference regarding comfort and saving energy.
