Debunking a Popular HVAC Myth

One of the most persistent myths in the HVAC industry is that the more expensive and thicker your air filter is, the better it will be for your home’s air quality and system performance. At Guardian Heating & Cooling, we frequently encounter Chicago homeowners who believe this misconception, and it’s time to set the record straight.

Here’s why this myth is false:

• Thicker filters can actually restrict airflow
• Higher MERV ratings aren’t always better for every system
• Premium-priced filters don’t guarantee superior performance

The reality is that your HVAC system is designed to work with a specific range of filter types. Installing an ultra-thick, high-MERV filter in a system that wasn’t designed for it can cause:

• Increased energy consumption
• Reduced system efficiency
• Potential system damage
• Higher utility bills

For most residential systems in the Northbrook and Lincoln Park areas, a medium-efficiency filter (MERV 8-11) provides the optimal balance between air filtration and system performance. These filters effectively capture most household contaminants while allowing proper airflow through your system.

The best approach is to consult with a qualified HVAC professional who can recommend the right filter based on your specific system specifications and indoor air quality needs. Regular maintenance and proper filter selection will ensure your system runs efficiently and effectively for years to come.

Remember, when it comes to HVAC filters, more expensive doesn’t always mean better. Trust the experts at Guardian Heating & Cooling to help you make the right choice for your home’s specific needs.