The Truth About Furnace Filters You Need to Know

One of the most persistent myths in home heating maintenance is that expensive furnace filters are always better than standard ones. This widespread misconception is costing homeowners hundreds of unnecessary dollars each year while potentially doing more harm than good to their heating systems.

Let’s break down the most common filter-related myths:

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

High-MERV rated filters (those designed to catch the smallest particles) aren’t always ideal for every system. In fact, these dense filters can restrict airflow, forcing your furnace to work harder and potentially leading to system strain and higher energy bills.

Myth #2: Change Filters Every 30 Days No Matter What

While regular maintenance is crucial, the timing of filter changes depends on several factors:
• Number of occupants
• Presence of pets
• Local air quality
• Season of use
• Type of filter

Myth #3: Any Filter Size Will Work

Using an incorrectly sized filter can lead to air bypassing the filter entirely, rendering it useless. Always use the exact size recommended for your system.

The Bottom Line

The key to proper furnace maintenance isn’t always about spending more money – it’s about making informed decisions based on your specific system and needs. Regular professional maintenance and choosing the right filter for your particular setup will keep your system running efficiently and effectively.

Remember, when in doubt, consult with heating professionals who can evaluate your system’s specific needs and recommend the most appropriate filtration solution for your home.