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How Often Should You Change Your Furnace Filters?

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It’s that time of year again – the time to flip your furnace on to prepare for the long winter ahead. Like summer, winter is a time when your HVAC system is going to be moving large amounts of air through your ducts and into your home. Compound this with the amount of time you’re going to be spending inside your home over the next few months and you’ve got a perfect recipe for painfully (and potentially dangerously) bad indoor air quality!

During the upcoming months, changing your furnace filters regularly is going to be extremely important in order to keep the air in your home safe and healthy. A lot of families have questions about the importance of changing their air filters regularly – questions which we hope to answer here!

How often should you replace your air filters?

Since you’re going to be both using your HVAC system more and staying inside more, it’s important you at least inspect them once a month and change them every three months. Remember: this is at minimum – you may need to change them as often as once a month.

Why do you need to change your filters so often?

Even though they seem simple, your air filters actually have a pretty major effect on not only your indoor air quality but also on the way your furnace operates! This winter, it’s important you keep on top of changing your air filters for a number of reasons.

As your filter collects various bits of dust, pet dander, pollen, etc., it starts to get clogged. Over time, the clog can build up and make it much more difficult for air to pass through. This causes the blower to work harder, increasing your energy bill and eventually causing the blower motor to overheat and burn out. If you let it go for too long, you may be calling us for Maryland furnace repair!

In addition, the reduction in airflow means it will take longer to heat your home. If the filters get too stopped up and your airflow gets too bad, there’s a chance many rooms farther away from the HVAC system won’t get any air at all!

Changing your furnace filters regularly – at least every three months but preferably every month – is the best thing you can do to ensure proper furnace operation all winter long. Don’t let dirty filters harm your indoor air quality and your furnace components – change your filters often, and any time you need furnace maintenance or repairs, call Michael Bonsby Heating & Air Conditioning!

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