Your HVAC system’s blower is designed to move a specific amount of air through your ductwork and into your home. The furnace fan is what moves the air through the system.
There is a lot of debate these days about whether or not you should run your furnace fan continuously. Some say it’s a waste of energy, while others swear by it for better air quality and comfort. So what’s the truth? Is it safe to run your HVAC fan continuously in summer?
And if so, how do you go about doing it? We will shed some light on this topic so you can make an informed decision for your home.
What is a Furnace Fan, and How Does It Work?
A furnace fan is a device that helps circulate air throughout your home. It is typically located near the furnace; its job is to take in cool air from the outside and circulate it through your home’s ductwork.
There are two main furnace fan types: blower fans and circulator fans.
- a) Blower Fans: Blower fans are the most common furnace fan. An electric motor powers them and typically have low, medium, and high speeds.
- b) Circulator Fans: These fans are less common but are powered by the furnace itself. They only have one speed and typically only run when the furnace is on.
Benefits of Running Your Furnace Fan Continuously
1) Save Energy Bills
One of the best ways to reduce your energy consumption is to keep the air in your home circulating. You can save up to 11 percent on your heating and cooling costs by continuously running your Energy-star rated furnace fan.
2) Better Air Circulation and Indoor Air Quality
Running your furnace fan continuously will also improve air circulation throughout your home. It can be beneficial if you have problems with stuffiness or poor indoor air quality. By circulating the air, you can help to remove any stagnant air and replace it with fresh, clean air from outside. It can also help to reduce the spread of airborne illnesses and improve the overall air quality in your home.
3) Increase the Lifespan of Your Unit
When the furnace fan is running, it helps circulate air and keeps the inner workings of your furnace clean. It can prevent dust and dirt from building up and causing wear and tear on your unit.
When Should You Avoid Running the Furnace Fan?
1) Leakage in the Ductwork: If your home leaks, continuously running the furnace fan will cause the conditioned air to escape. It will make a home less comfortable and increase your utility bills.
2) Clogged Air Filter: A clogged air filter will restrict airflow and put unnecessary strain on your furnace. It can lead to a shorter lifespan for your furnace.
3) Humidity Problems: If you have a humidity problem in your home, continuously running the furnace fan can worsen it. The fan will circulate the humid air, leading to condensation and mold growth.