How Often Should You Replace Your HVAC Filters During Fall and Winter?
As the seasons shift from the warmth of summer to the cooler, crisper air of fall, your HVAC system begins to play an increasingly important role in keeping your home comfortable. Maintaining indoor air quality and efficient heating are priorities during these colder months, and one of the simplest ways to ensure both is by regularly changing your HVAC filters. At Pruetts Heating and Air in York, SC, we want to share insights on how often you should be replacing these filters as temperatures drop.
Why HVAC Filter Replacement Matters in the Cooler Months
As we move from fall into winter, we’re likely spending more time indoors, relying on our heating systems to keep us cozy. During this time, your HVAC filter is essential to:
- Improve indoor air quality by trapping dust, allergens, pet dander, and other airborne particles.
- Maintain heating efficiency, as a clean filter allows your system to operate without extra strain.
- Prolong system lifespan since a clogged filter can cause overheating and wear on system components.
Neglecting to change your HVAC filters can lead to reduced efficiency, increased energy costs, and even possible repairs.
How Often Should You Change Your Filter in Fall and Winter?
The frequency of filter changes varies based on your HVAC system, home, and personal needs. Here are some general guidelines to help you determine the best schedule:
Basic Rule: Every 1 to 3 Months
- For most homes, changing the HVAC filter every 1 to 3 months works well. This schedule ensures that your system isn’t overworking to push air through a clogged filter.
Consider Monthly Changes if You Have Allergies or Pets
- If you have allergies, asthma, or pets that shed, you may want to change the filter monthly. Fall and winter can bring additional allergens and particles into the home as windows stay closed and ventilation relies more on your HVAC system.
Check the Filter Monthly During Peak Usage
- During winter, when the heating system is used continuously, check your filter monthly. If you notice any visible buildup, replace it even if it hasn’t been the full three months.
How to Tell if Your Filter Needs to Be Changed
Your HVAC system may be giving you clues that it’s time for a filter change. Here are a few signs to look out for:
- Visible dirt and dust on the filter: If the filter looks grey or has visible dust, it’s time for a change.
- Increased energy bills: A dirty filter can make your system work harder, leading to higher energy costs.
- Reduced airflow: If you notice that airflow from your vents is weak, it could be due to a clogged filter.
Choosing the Right Filter for Fall and Winter
Not all filters are created equal, and selecting the right one can make a difference in your indoor air quality and system performance. Filters come with different Minimum Efficiency Reporting Value (MERV) ratings:
- MERV 1-4: Basic filters that capture larger particles.
- MERV 5-8: Suitable for homes without allergies or sensitivities, providing a good balance between filtration and airflow.
- MERV 9-12: These are higher-efficiency filters that are excellent for homes with pets or allergies, capturing smaller particles that improve air quality.
Choosing the right MERV rating depends on your household needs, but during fall and winter, when you’re indoors more often, upgrading to a filter with a higher MERV rating can provide additional health benefits.
Trust Pruetts Heating and Air for HVAC Maintenance in York, SC
Regular filter changes are essential to keeping your home comfortable, efficient, and safe throughout the fall and winter seasons. If you’re unsure about your filter needs or need expert HVAC maintenance, Pruetts Heating and Air in York, SC, is here to help. Reach out to our team for a seasonal check-up, and let us ensure your HVAC system runs smoothly throughout the colder months! To learn more about professional maintenance and how to keep your York, SC HVAC system running efficiently and effectively, check out our maintenance service page today!



