One of the easiest yet most important tasks you can do for your furnace is to replace its filter regularly. While it might seem like a minor detail, the type of filter you choose can considerably impact your HVAC system’s efficiency, the air quality in your home, and even your family’s health.
But with so many options out there, it’s normal to wonder, “What furnace filter should I buy?” Don’t worry — we’ll break it all down so that you can find the perfect fit.
Why Are Furnace Filters Important?
A furnace filter does more than just prevent dust from settling inside your furnace. It plays a necessary role in filtering the air that circulates through your home, trapping dust particles, pet dander, mold spores, and other airborne pollutants. Choosing the right furnace filter can boost indoor air quality, protect your HVAC equipment, and even help reduce energy costs.
Ignoring this small but vital part of your system could lead to a clogged filter, restricted airflow, or even damage to your blower motor. That’s why understanding what furnace filter you should buy is so important.
How to Determine What Furnace Filter You Should Buy
There are several factors to keep in mind when choosing a furnace filter. It’s not a one-size-fits-all decision, so here are some steps to guide you.
Check Your Current Filter
The easiest place to start is with your existing filter. Look at the filter frame for important details like the filter size, MERV rating, and material type. The size filter you need is usually listed in dimensions like “16x20x1,” so write this down to avoid buying the wrong fit.
Understand MERV Ratings
MERV stands for Minimum Efficiency Reporting Value, and it tells you how effective a filter is at capturing particles. The MERV scale ranges from one to 16 for residential HVAC systems. Here’s a quick breakdown:
- MERV 1-4: Basic fiberglass filters that trap larger particles like dust but not much else.
- MERV 5-8: Suitable for most homes, these filters capture smaller particles and improve indoor air quality.
- MERV 9-12: High-efficiency filters that catch tiny particles, including pet dander and mold spores.
- MERV 13: Top-tier residential filters that trap microscopic particles, offering cleaner air and improved air filtration.
If you’re looking for furnace filter recommendations, a MERV 8 filter is often a great balance of performance and affordability. For homes with allergy sufferers or pets, a higher MERV rating, such as MERV 13, may be worth the investment.
Choose the Right Type of Filter
There are various types of filters available, and understanding the differences can help you pick the right one for your needs. Here are some common options and furnace filter recommendations to guide your choice.
- Pleated Filters: Made with folded filter media, pleated filters have more surface area to trap particles. They are a popular choice for their efficiency and affordability.
- Electrostatic Filters: These use static electricity to capture particles and are ideal for smaller particles like dust mites and smoke.
- HEPA Filters (High-Efficiency Particulate Air): Known for capturing over 99% of microscopic particles, HEPA filters are the best for improving air quality but may not fit all residential HVAC systems.
- Washable Filters: While eco-friendly, these require regular cleaning and can be less effective over time.
- Basic Fiberglass Filters: These are inexpensive and disposable filters, but their lower efficiency might not meet the needs of homes with pets or allergy concerns.
Why Size and Thickness Matter
Getting the right filter size is paramount for proper airflow. Too small, and it won’t fit snugly, allowing dust and debris to bypass the filter entirely. Too large, and it may not fit in your furnace or air handler. Additionally, a thicker filter, such as a 2-inch or 4-inch filter, can trap more particles and last longer but might require modifications to your HVAC system.
Common Furnace Filter Mistakes to Avoid
Now that we’ve covered furnace filter recommendations based on your needs, let’s dive into what to avoid when replacing your air filters. Here are some key don’ts — steer clear of these to prevent any issues.
Buying the Wrong Size
Double-check the size filter your system needs before making a purchase. As mentioned, an ill-fitting filter won’t work as effectively and can allow dust particles to bypass the filtration system.
Ignoring the MERV Rating
Going too high on the MERV scale can restrict airflow, while a low MERV filter might not provide enough air filtration. Find the balance that works for your HVAC system.
Forgetting to Replace the Filter
Replacement filters need to be swapped out regularly to avoid a clogged filter and maintain good air flow. Check your filter every 30 to 90 days, depending on its type and your usage.
Benefits of Choosing the Right Filter
Picking the right filter means more than just cleaner air. Here’s what you can expect:
- Better Indoor Air Quality: A good filter removes airborne particles and helps clean the air inside your home.
- Energy Savings: Efficient HVAC filters can improve airflow, reduce strain on your HVAC system, and lower energy costs.
- Longer HVAC Lifespan: Clean filters protect your system from dirt and debris, helping it run smoothly for years to come.
Why You Should Call Efficient Air Heating & Cooling
Whether you need help replacing a clogged filter or servicing your HVAC equipment, we’ve got you covered. Our team will make sure your HVAC system runs efficiently while maintaining excellent indoor air quality. We also specialize in ductless HVAC systems in Owensboro, KY, for those looking for versatile heating and cooling solutions.
Schedule Furnace Maintenance in Owensboro, KY, Today!
When thinking about what furnace filter you should buy, focus on your household’s specific needs, your HVAC system’s capabilities, and your budget. By following these furnace filter recommendations, you can enjoy cleaner air and a longer-lasting system.
Changing your furnace filter is essential for a healthy HVAC system and great indoor air quality. But when it’s time for the bigger tasks — like a full system inspection, cleaning, or repairs — Efficient Air Heating & Cooling is here to help. We’ve been a trusted local business since 1998, keeping your comfort in mind with reliable, family-friendly service.
Let us handle the heavy lifting while you enjoy the comfort and peace of mind that comes with a well-maintained furnace. Contact us today to schedule your heating services in Owensboro, KY, or one of the surrounding areas!
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