Common Misconceptions About Furnace Filter Installation

November 17, 2023


When it comes to maintaining your HVAC system, one of the essential components is your furnace filter. This seemingly simple element plays a crucial role in ensuring the efficiency, longevity, and air quality of your heating and ventilation system.

However, there are many common misconceptions surrounding furnace filter installation, this is where the expertise of an HVAC contractor becomes especially important.

In this blog, we’ll debunk these myths, providing you with the right information to keep your HVAC system in top-notch condition with the guidance of a knowledgeable HVAC contractor.

1. The ‘One-Size-Fits-All’ Fallacy

One of the most pervasive myths about furnace filters is the belief that any filter will do. This misconception can lead to problems down the road. In reality, the type of filter you need depends on your specific HVAC system and the air quality in your area.

Using the wrong filter can restrict airflow or let harmful particles pass through, impacting your system’s performance and your indoor air quality.

2. The ‘Set It And Forget It’ Misconception

Some homeowners believe that once they install a furnace filter, they can leave it in place indefinitely. Filters do need replacement, and neglecting this crucial maintenance can cause a myriad of problems.

Clogged filters can decrease your HVAC system’s efficiency, increase energy bills, and ultimately lead to costly repairs. The frequency of replacement depends on factors such as the type of filter and your local air quality, so it’s important to follow manufacturer recommendations.

3. The ‘The Higher The MERV, The Better’ Belief

MERV, or Minimum Efficiency Reporting Value, is a rating that measures the effectiveness of an air filter. While a higher MERV rating can capture smaller particles, it doesn’t necessarily mean it’s the best choice for your HVAC system.

Filters with high MERV ratings can impede airflow, causing stress on your system and leading to inefficiency. It’s essential to strike a balance between filtration efficiency and airflow for optimal performance.

4. The ‘Clean Filters Are Always Better’ Misunderstanding

Some homeowners think that a filter is most effective when it’s spotlessly clean. However, the truth is that a filter with some dust and particles can be more efficient than a brand-new, ultra-clean one.

This is because a certain amount of particles on the filter can help improve filtration. Regular replacement is still necessary, but don’t be overly eager to change your filter at the first sign of dust.

5. The ‘DIY Installation Is Foolproof’ Assumption

Installing a new furnace filter may seem like a straightforward task, but it’s easy to make mistakes. Inaccurate installation can lead to air leakage, which compromises the filter’s effectiveness. It’s best to have a professional HVAC company handle the installation, ensuring it’s done correctly and efficiently.

6. The ‘Cost Over Quality’ Error

Sometimes, homeowners prioritize cost over filter quality, opting for the cheapest option available. While it’s essential to stick to a budget, investing in a quality filter can save you money in the long run. Quality filters may have a higher initial cost but are more efficient, last longer, and provide better air quality.

7. The ‘Visible Dirt Means It’s Time To Replace’ Misconception

It’s tempting to judge the state of your filter’s cleanliness by how dirty it looks. However, visible dirt doesn’t always mean it’s time for a replacement. Some filters are designed to capture a considerable amount of particles before needing replacement. Follow the manufacturer’s recommendations for replacement intervals, regardless of how dirty the filter appears.

8. The ‘No Need For Regular Maintenance’ Belief

Some homeowners believe that as long as they replace the filter regularly, there’s no need for any other maintenance on their HVAC system. In reality, your system needs regular professional maintenance to ensure it functions optimally and to catch any potential issues before they become costly problems.

Also read: Top Signs Your Furnace Needs Maintenance: Don’t Ignore These Red Flags

9. The ‘Allergen-Removing Filters Are The Best’ Assumption

Filters specifically marketed as allergen removers can be enticing for those with allergies. However, these filters may not always be the best choice.

Allergen-removing filters can restrict airflow, causing your HVAC system to work harder. Consult with an HVAC professional to find the right balance between filtration and system efficiency.

10. The ‘No Need For Professional Inspections’ Misunderstanding

Lastly, some homeowners believe they can skip professional inspections of their HVAC system entirely. Regular inspections by an HVAC company are essential to detect any hidden issues, ensuring your system remains efficient and reliable throughout the year.

About Fogarty Heating And Ventilation

Fogarty Heating and Ventilation is your trusted partner in maintaining the efficiency and longevity of your HVAC system. Our team of dedicated professionals is committed to providing top-quality HVAC services, from filter installation to routine maintenance and repairs.

Contact us today for expert advice and assistance with your HVAC needs. Visit us to learn more about our services and how we can help you achieve optimal HVAC performance.

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