Your HVAC system is vital to not only keeping your home at a comfortable level, but it also can improve your home’s air quality. Understanding how your furnace filters work, and why they are important is vital to maximizing your indoor air quality and the lifespan of your system. With summer in Vancouver approaching, your air conditioning will be running, so having clean filters is a must.
Here is a complete guide to when to replace your furnace filters and some other important details.
- How Often Do Furnace Filters Need Replacement?
In general, if you have a 1-2-inch thick filter, you should swap them out every three months. For 4-inch filters, change them every six months. And finally, if you have 5-inch-thick filters, changing them every year is okay. - How Can I Tell If I Need New Filters?
Some telltale signs that it is time to replace your filters are if you have noticed that your HVAC system is running more often than before. Another way to know if your air filters need to be changed is if you notice more dust in your home or property. And finally, the easiest way to know is by checking the actual filter. If you notice grime and dirt build-up, it is time to replace them. - Why Should I Change Them?
By changing your filter on a regular basis, you are ensuring that your home’s air quality will remain free of dust, allergens, and other possible contaminants. By failing to switch your filters, not only are you causing your system to work extra (and reducing its lifespan), your HVAC system will not be able to properly catch allergens. This results in your family breathing in more allergens and poor-quality air. - Are All Filters The Same?
No. Filters are normally rated with the minimum efficiency reporting value (MERV). This rating generally goes from 1 to 16. The higher the rating, the greater ability the filter will have in removing particles. With higher rated filters, they allow less air through and can cause your system to work harder.Normally, a MERV rating of 11 should be suitable for most homes. You can always check your particular furnace model to see the maximum MERV rating it carries.
Also Read: Steps to follow when your Furnace stops working
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