Furnace Filter: Get The Straight Facts Here

You probably know that your furnace filter is an important component of your system. But along with many other homeowners, you might be at a loss when it comes to understanding exactly why filter maintenance is so crucial. Take this opportunity to educate yourself about the all-important filter in your furnace.

The role of the furnace filter

Without the filter, your furnace’s internal components would be subject to significant dirt buildup. If the furnace filter were never changed, the system would eventually become rife with dirt and fail. Manufacturers have designed furnaces with this important task of protection in mind. That’s the reason your furnace has a filter.

Changing the furnace filter

It’s easy to understand why it’s imperative that you replace your furnace filter regularly. Once the filter becomes full, its ability to trap more dirt decreases. Perhaps more important, a full filter restricts airflow to the furnace. When the system becomes starved for air, it operates less efficiently and may even cause damage to the furnace down the line.

Learning when to change the filter

The owner’s manual for your furnace will outline how often to change the filter. Frequency generally depends on the type of filter you have, but most experts recommend checking the filter at least once a month. If it looks brown or dingy, then change it. At the very least, you should change your filter every three months, regardless of its state, unless your furnace calls for a specialty filter that doesn’t need to be changed as often.

Choosing a filter

You don’t have to use a filter manufactured by your furnace company. Many furnace filters can be used in a variety of systems. The more important factor to consider when you’re choosing a different filter is its minimum efficiency reporting value (MERV). It’s best to consult with a professional to identify the MERV rating range to use with your furnace, as a filter that is too dense can restrict airflow through the furnace. For most furnaces, a mid-range filter is sufficient.

Balance Point Heating & Air Conditioning serves homeowners in greater Fort Collins. Contact us with your questions about furnace filters.

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