01/17/2025

Common Furnace Filter Myths That Could Cost You Money


Separating Fact from Fiction: The Truth About Furnace Filters

One of the most persistent myths in home heating maintenance involves furnace filters, and it’s time to set the record straight. As HVAC professionals serving communities from Dacono to Longmont, we’ve heard plenty of misconceptions that could be costing homeowners money and efficiency.

The Biggest Filter Myth: More Expensive Means Better

Many homeowners believe that purchasing the most expensive, highest-MERV-rated filter will automatically provide the best air quality and system performance. This isn’t always true. In fact, using a filter that’s too dense can restrict airflow, forcing your furnace to work harder and potentially leading to system damage.

Here’s what you really need to know:

• Standard 1-inch filters should typically be changed every 1-3 months
• Not every home needs a high-MERV filter
• The right filter depends on your specific system specifications
• Using the wrong filter can increase energy costs

Signs You’re Using the Wrong Filter:

1. Increased energy bills
2. Reduced airflow from vents
3. System running longer than usual
4. Frequent system cycling

The best approach is having a professional evaluate your system’s needs rather than assuming the most expensive option is the best choice. Regular maintenance and proper filter selection will keep your system running efficiently and save you money in the long run.

Remember, your furnace is an investment, and proper care with the right components will extend its life and maintain its efficiency. Contact a qualified HVAC professional to determine the best filter choice for your specific system.

The Bottom Line

Don’t fall for marketing hype when it comes to furnace filters. The right filter for your system might not be the most expensive option on the shelf. Focus on regular maintenance and proper filter changes to keep your heating system running at peak efficiency.