Have you ever wondered how often you need to change your HVAC filter? It’s a common question, and for a good reason—your HVAC filter plays a critical role in the efficiency of your heating and cooling system while maintaining indoor air quality. In today’s blog, we’ll apprise you of how to maintain and replace your home’s HVAC filter.

Warning Signs Your HVAC Filter Needs To Be Changed

First, recognize the signs that your filter needs replacing:

Visible dirt and dust: If you can see dirt, dust, or debris on the filter, it’s time for a change.
Increased energy costs: A clogged or dirty air filter can cause your HVAC system to work harder, increasing energy consumption.
Poor airflow: If you notice weak airflow from your vents, a dirty filter could be the culprit.
More dust in your home: If you’re dusting more frequently, your filter might not be doing its job.
Allergy symptoms: An increase in allergy symptoms could indicate that your filter isn’t trapping allergens effectively.

What Happens If You Forget To Change Your Filter?

Neglecting to change your HVAC filter can potentially lead to the following problems:

Reduced efficiency: Your system will have to work hard if the air filter isn’t changed out regularly, which will result in greater consumption of energy, whereby increasing your month energy bill.
Bad air quality: A clogged filter can’t effectively remove pollutants from the air.
System damage: In extreme cases, a very dirty filter can cause your HVAC system to overheat and break down.
Shortened equipment lifespan: Regular filter changes help extend the life of your HVAC system.

Filter Replacement Recommendations

You might notice different recommendations from various sources. For example, HVAC manufacturers often recommend that you change your filter monthly for optimal performance.

Filter manufacturers, meanwhile, suggest changes based on their product’s design, which is typically every one to three months. An HVAC technician will recommend a filter replacement schedule based on your specific situation.

Factors Impacting Filter Replacement Timelines

Several factors can affect how often you need to change your filter:

Filter quality: Higher quality HVAC filters generally last longer.
Household size: More people and pets often mean more frequent changes.
Outdoor air quality: If you live in a highly populated area or a region with poor air quality, you may need to change filters more often.
HVAC usage: Systems that run more frequently require more frequent filter changes.
Allergies or respiratory issues: If anyone in your household has these concerns, more frequent changes may be beneficial.

How Often Should You Change Your Filter?

However, it’s best to check your type of filter on a regular basis and replace it when it looks dirty, regardless of how long it’s been. This proactive approach keeps your HVAC system running efficiently and your indoor air quality high.

As a general rule:

For 1-inch filters: Change every 30-60 days
For 3-inch filters: Change every 60-90 days
For 4-inch filters: Change every 90-120 days

Remember, regular filter changes are a small investment that will lead to a significant savings on your energy bills and elevate the expenses associated with costly repairs in the long run.

Contact the HVAC technicians at Clements Plumbing in Lamar, MO, at 417-682-3797 to provide personalized advice based on your specific system and needs.

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