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Stop Believing These Common Furnace Filter Myths


The Truth About Furnace Filters Everyone Should Know

When it comes to maintaining your heating system, few components generate more misconceptions than furnace filters. At Farley & Hysaw, we’ve heard just about every myth imaginable, and it’s time to set the record straight.

Myth #1: The More Expensive the Filter, the Better

Actually, the best filter is the one that matches your specific furnace’s requirements. Using an overly dense filter can restrict airflow and cause your system to work harder than necessary.

Myth #2: You Only Need to Change Filters Once a Year

This is dangerously incorrect. Most filters should be changed every 1-3 months, depending on:
• Household size
• Number of pets
• Local air quality
• Filter type

Myth #3: All Filters Are Created Equal

Different furnaces require different types of filters. Using the wrong one could:
• Reduce efficiency
• Increase energy costs
• Potentially damage your system

Myth #4: MERV Ratings Don’t Matter

MERV (Minimum Efficiency Reporting Value) ratings are crucial for proper filtration. However, higher isn’t always better – your system has an optimal MERV rating range that shouldn’t be exceeded.

The Bottom Line

Understanding these truths about furnace filters can help homeowners throughout Tuscaloosa, Northport, and surrounding areas maintain their heating systems more effectively. Regular maintenance and proper filter selection are key to optimal performance and longevity.

Remember, when in doubt about your furnace filter needs, it’s always best to consult with heating professionals who understand your specific system and local conditions.