How Often Should I Change My Furnace Filter? A Guide for Homeowners
Changing your furnace filter is one of the simplest yet most important maintenance tasks for keeping your HVAC system running efficiently. But how often should you change your furnace filter? The answer depends on several factors, such as the type of filter, your household's conditions, and the time of year.
Why Changing Your Furnace Filter is Important
A clean furnace filter ensures that your HVAC system can efficiently circulate air throughout your home. A dirty filter restricts airflow, making your system work harder to heat or cool your home, leading to higher energy bills and potential damage to the furnace.
Recommended Frequency for Changing Furnace Filters
- Standard 1- to 2-inch filters: Every 1-3 months
- Pleated 4-inch filters: Every 6 months
- High-efficiency filters: Every 12 months (check the manufacturer’s guidelines)
Factors that may require more frequent filter changes:
- Pets: Pet dander can clog filters faster.
- Allergies: If someone in your home suffers from allergies, changing the filter more frequently helps maintain cleaner air.
- Seasonal use: During peak heating or cooling months, your system works harder, so filters may need changing more often.
Signs It’s Time to Change Your Filter
- The filter looks dirty or clogged.
- Dust is accumulating around your vents.
- Your energy bills are higher than usual.
- Rooms are not heating or cooling evenly.
Regularly changing your furnace filter can improve your indoor air quality, extend the life of your HVAC system, and lower your energy costs.
