HVAC Filter

Replacing Your HVAC Filter: What You Need to Know

Your home’s HVAC filter is a vitally important part of your overall heating and cooling system. It aids in reducing your home’s allergens such as dust, lint, dust mites, mold spores, pollen, pet dander, and smog. Not only does replacing your HVAC filter improve the quality of air in your home, but it can also save you money. Replacing your HVAC filter can lower your unit’s energy consumption by up to 15 percent, according to a U.S. Department of Energy report. 

Dirty air filters can also damage your HVAC system by restricting airflow into the air handler. This restricted airflow puts a strain on the handler’s fan motor which. Left unchecked, the motor will burn out and the system will overheat and fail. Dirty HVAC coils make the system work harder and are more prone to freezing over or burning out. They can also lead to costly HVAC cleaning expenses.

The cost of replacing your HVAC filter is a tiny fraction of the cost of repairing or replacing an entire HVAC system.

We always advise our clients to replace these filters on a regular basis to save themselves from a major headache down line. 

How Often Should HVAC Filters Be Replaced?

A number of factors determine how often you should replace an HVAC filter. A general rule of thumb is replacing your HVAC filter every 90 days. If you have pets or severe allergies or live in a very dusty area, replace your filter every three weeks. However, if you rarely use your system, you can wait up to six months to change the filter. At a minimum, plan to replace your filters once in the spring and once in the fall. This timing will ensure that the unit is in its best shape before works it works overtime in the winter and summer months. 

Replacing your HVAC Filter: A Step-by-Step Guide

Replacing HVAC filter

First, check your HVAC owner’s manual to see what kind of filter it requires. These filters come in a variety of different shapes and sizes, so you want to ensure you purchase the right one. 


When you’re ready to proceed, turn off the unit. Locate the service panel and remove it. Remove the existing filter, which will be located near the blower fan. Slide in the new filter and turn the unit back on. It’s that easy!

The Bottom Line

Replacing your HVAC filter is a simple task that will save you money and improve the air quality in your home. Set a reminder for yourself to replace these filters at least twice a year. Replacing your HVAC filter is an incredibly easy task that you can do yourself within a matter of minutes. You’ll be glad you did!

For more on maintaining your home, check out these related articles and sign up for our monthly blog roundup.

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