The Truth About HVAC Filters and Energy Efficiency
One of the most persistent myths in home comfort is that using the most expensive, highest-rated HVAC filters will automatically result in better air quality and system performance. At Milwaukie Heating & Cooling, we regularly encounter homeowners who are unknowingly damaging their systems with this misconception.
Here are the facts you need to know:
Myth #1: The Higher the MERV Rating, the Better
While MERV (Minimum Efficiency Reporting Value) ratings indicate filtering capability, using a filter with too high a rating can actually restrict airflow and force your system to work harder. This leads to increased energy consumption and potential system damage.
Myth #2: Change Filters Every Three Months, No Matter What
Filter replacement schedules should be based on:
• Your specific living situation
• Pet ownership
• Local air quality
• System usage patterns
Myth #3: Any Filter Size Will Work
Using an incorrectly sized filter can create gaps that allow dust to bypass the filter entirely, potentially damaging your system’s components.
The Reality
The best filter choice depends on your specific system specifications and household needs. For optimal performance, consult with HVAC professionals who can evaluate your system and recommend the most appropriate filtration solution.
Remember, proper filter maintenance isn’t just about air quality – it’s about protecting your investment in your heating and cooling system while maintaining energy efficiency.
Regular professional maintenance, combined with appropriate filter selection and timely replacement, remains the most effective strategy for maintaining your HVAC system’s performance and longevity.