The Truth About HVAC Filters That Every Homeowner Should Know
One of the most persistent myths in home heating and cooling maintenance is that expensive, high-MERV filters are always the best choice for your HVAC system. At Guardian Heating & Cooling, we regularly encounter homeowners who’ve been misled by this common misconception.
Breaking Down the Filter Myths
1. Myth: The higher the MERV rating, the better for your system
Truth: While high-MERV filters catch more particles, they can actually restrict airflow significantly in systems not designed for them, causing your unit to work harder and potentially reducing its lifespan.
2. Myth: You only need to change filters once a year
Truth: Most homes require filter changes every 60-90 days, with some situations demanding monthly changes.
3. Myth: All filters are basically the same
Truth: Different HVAC systems require specific filter types for optimal performance.
What Really Matters in Filter Selection
– System compatibility
– Home occupant needs (allergies, pets, etc.)
– Local air quality conditions
– Manufacturer recommendations
Understanding these factors helps ensure your heating system operates efficiently throughout Chicago’s harsh winters and humid summers. The right filter choice balances air quality with system performance, potentially saving hundreds in energy costs and repairs.
Remember, what works for your neighbor’s HVAC system might not be ideal for yours. Always consult with qualified professionals who can evaluate your specific needs and system requirements.