Knowing when to replace your furnace filter will help prevent damage and inefficiency in your HVAC system during the winter. When you need heat the most, it’s essential that the furnace perform optimally to keep your home warm and comfortable. Take a look at this guide to learn the best practices for changing the filter.

Why Is Changing the Filter Essential?

Your furnace filter collects dust, debris, and contaminants — like pet dander, pollen, and other particles — that would be problematic if breathed in. In time, the filter will become clogged with debris and must be replaced to protect the air quality in your home.

What Types of Furnace Filters Are There?

The type of filter that is used in your HVAC system may vary depending on the model of your furnace. Generally, filters are rated using a MERV — Minimum Efficiency Reporting Value. The higher the filter is rated, the more particles it can remove from the air. As such, the higher the rating, the more often you should change the filter, as it will become congested sooner.

How Often to Change the Filter?

Typically, the filter should be replaced every two or three months. Regular replacement will prevent the furnace from working too hard and becoming inefficient. If you have long-haired pets, you may need to replace the filter more frequently because more dander will gather. If members of your household smoke cigarettes indoors, it will also contribute to how often the furnace filter should be changed. The more environmental pollutants that are in the indoor air, the more often a filter replacement will be necessary.

Keeping your furnace running efficiently is essential for the comfort of your household. Contact the professionals at Duncklee Cooling & Heating in Stonington, CT, when you need high-quality, affordable heating and cooling services. With over 45 years in business, their experienced team specializes in a wide range of HVAC services including heat pump and furnace repairs to keep your home cozy all winter. To schedule an appointment, call (860) 535-2552 or visit them online.