How Often Should You Change Your Furnace's Filter

Furnace Filter Replacement

Your furnace is a crucial machine in your home because it gives you warmth, especially in the winter. This is why it’s vital that you know how to maintain it properly, only then will you be able to make the most out of it. One of the most essential things to ensure its longevity and keep it performing well is to replace the filter regularly. The question is, how often do you need to change your furnace’s filter?

Why leave your home in the hands of a sub-par HVAC expert? Call CE Plumbing & Heating today at 250-707-8285 and see why we’re the company Kelowna homeowners trust most.

Factors to Consider in Change Frequency

Keep in mind that many factors will affect how frequently you should change your filters. For one, if you have pets at home, you might need to replace the filter more frequently because your furry friends often shed a lot of fur and dander, which can clog the porous device.

Another factor is when people in your home have allergies, asthma, or other respiratory problems. You need to ensure that the air circulating inside the property is clean, and one way to guarantee this is to have a clean filter in your furnace.

There are also times, most specifically during the winter months, when you use your furnace more. Heavy usage typically means you will need to opt for a replacement more often as well. The same applies when you get a wet filter due to leaks. When it is wet, it can create moisture that restricts sufficient and clean airflow of the furnace.

Replace The Filter Every Three Months

This porous device is a vital component of your furnace. However, over time, it will collect dirt, dust, and other elements that can obstruct airflow, which will affect your furnace’s performance. As a result, your furnace can easily overheat and lead to a breakdown. When this happens, you will likely face costly repairs or, worse, replace the entire furnace. Additionally, you don’t want to encounter any problems with it in the middle of winter, which is why you need to pay attention to filter changes.

With that, it’s ideal to replace the device every three months. However, it won’t hurt to check your filter at least once a month to evaluate its condition, depending on the usage amount. It’s possible to find your filter already clogged this early on because your environment plays a huge factor in this. For this reason, if you live in an area where there is dustier than usual, you will need more frequent furnace filter replacements.

Pay Attention to the Filters’ Color

An effective way to know if it’s time to change your filter is to look into its appearance. Initially, filters are white, but if it’s turned grey, then that’s the time you need to replace it.

Replacing your filter is easy; all you need to do is remove the existing filter and replace it with a new one. In the case of permanent devices, you need to vacuum it to remove the dust and use a moist cloth to wipe away any leftover dirt.


Not everyone understandably has the time to check their furnace’s filter, and many homeowners tend to forget. If you want to ensure that your furnace remains in good condition, consider hiring a professional to maintain it for you. Regular maintenance is crucial, and this doesn’t only include your furnace’s filter but also other essential components of your equipment. With professional maintenance, it will help reduce costly repairs and replacements and make your furnace last longer.

Whether you need furnace repair in Kelowna or maintenance, trust only the experts at CE Plumbing & Heating. We have over 20 years of experience, and our services are top-rated in the area. Let our heating experts take care of your furnace by scheduling a service call today!

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