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What Happens When Your Furnace Air Filter is Dirty?

When was the last time you changed your furnace’s air filter? If it’s been a while, you might want to make that your next weekend DIY project. It’s important that homeowners remember to swap out their air filters once every three months, but you should check it every month when your system is being used in order to see if it needs to be changed sooner. This is a crucial step in home maintenance — but do you know why?

What Happens When Your Furnace’s Air Filter Is Dirty:

Your System Doesn’t Work As Efficiently – When your air filter is clogged, it isn’t working as efficiently. This means that it puts extra strain on your HVAC system to keep your home at a comfortable temperature.
Air Flow is Restricted – When your air filters are dirty and clogged, air can not pass through your vents as efficiently. This means that airflow can be restricted in your home. You may find that your air conditioning unit isn’t blowing cool air like it used to.
You’re Spending More Money – Since your unit has to work harder to push air through your home, you are using more energy and in turn, spending more money to keep your home cool in the summer and warm in the winter.

The following video is extreme but just imagine how much dust and junk must be in this home!

Learn more about the importance of maintaining your home heating system and why changing your furnace filter is so important.

Furnace Filter Facts

What is a furnace filter?

A furnace filter is a device that helps to remove contaminants from the air that passes through it. It is typically used in conjunction with a forced-air heating system. The furnace filter traps particles of dust, dirt, and other debris that can potentially clog or damage the system.

How often should air filters be changed?

Most air filters should be changed every 30 to 60 days, although this can vary depending on the type of filter and the environment in which it is used. Some filters may need to be changed more frequently if they are used in particularly dusty or dirty environments, while others may not need to be changed as often if they are used in cleaner environments.

What happens if you don’t change your furnace filters?

If you don’t change your furnace filters, the air in your home will become increasingly polluted. Over time, this can cause serious health problems for you and your family. Additionally, your furnace will have to work harder to circulate air, which will lead to higher energy bills.

Can you go a year without changing your furnace filter?

No, you cannot go a year without changing your furnace filter. Depending on the type of furnace you have, your filter should be changed anywhere from once a month to once a season. Not changing your furnace filter can lead to a number of problems, including decreased efficiency, increased wear and tear on your furnace, and even health problems due to poor indoor air quality.

If you have any questions about how to care for your home’s HVAC system, or you run into any problems, do not hesitate to contact our Minneapolis St. Paul Home Heating professionals. Dean’s Home Services has been repairing, updating and installing home heating systems in the Twin Cities for over 25 years!