How to replace a furnace filter

Noticing your furnace isn’t warming things up like it used to? You might be skipping over a simple yet key component: the furnace filter. Swapping it out regularly keeps your HVAC system in good shape and boosts your indoor air quality. Let’s check out why changing your furnace filter matters and how you can get it done.

The info in this article might not match your specific appliance model. While we try to offer helpful advice for all sorts of DIY fixes, different models and setups can mean variations in troubleshooting steps, error codes, part swaps, and so on. For spot-on guidance, it’s best to peek at your appliance’s manual or reach out to us if you’ve got questions.

Why changing your furnace filter is important

Knowing why a clean furnace filter is a big deal can motivate you to keep up with regular replacements. Here’s why it’s worth your time:

• It improves efficiency and saves energy: When your filter’s all clogged up, your HVAC system has to push harder to move air around your house. That extra effort can spike your energy costs and might even harm the system over time. Keeping the filter clean helps your furnace run smoothly, saves you some cash, and cuts down on wear and tear.
• It improves indoor air quality: Furnace filters catch dust, pollen, pet hair, and other stuff floating around. A clean filter means cleaner air inside, which is great news for folks with allergies or breathing issues. Breathing easier is always a good thing for you and your family.
• It extends system life: Switching out your furnace filter regularly takes some stress off your HVAC setup. Less strain means your furnace can last longer, helping you dodge early breakdowns and pricey replacements.
• It lowers maintenance costs: Taking care of the filter can cut down on costly repairs. Keeping the system from working too hard means fewer breakdowns and less cash spent fixing problems that a little maintenance could’ve prevented.
• It creates a cleaner home: A fresh filter reduces the dust and gunk circulating around your place. That means cleaner living spaces and less time spent dusting and tidying up surfaces.

How to replace your furnace filter

Ready to change that filter? Here’s how to do it:

1. Turn off the HVAC system. For safety and to keep debris from blowing into the system while you work, shut off your furnace. You can flip it off at the thermostat or hit the main power switch. This step protects both you and your HVAC gear.
2. Figure out the right filter size. Before grabbing a new filter, you need to know the size your system takes. Using the right dimensions is crucial; the wrong size can cause issues or even harm your system. You can usually find the size on the old filter’s frame or in your furnace’s manual. Not sure? Here’s how to find your appliance’s model number for more help.
3. Find the filter slot. The filter’s usually located where the return air duct meets the furnace or inside the blower compartment. If you’re having trouble spotting it, check your furnace’s manual. Knowing where it is makes the swap smoother.
4. Remove the old filter. Carefully slide out the old filter. Go slow to avoid shaking loose dust and debris into the system or your home. Pop the used filter into a plastic bag to trap the dust, and toss it properly.
5. Pop in the new filter. Grab your new filter and look for the airflow arrows on the frame. These arrows should point toward the furnace, showing the direction the air flows. Slide the filter into the slot, making sure it fits snug without any gaps. Placing it right is key for it to work well.
6. Turn the HVAC system back on. With the new filter in place, turn your furnace back on. Your system’s now set to run more efficiently with better air quality. It’s a good idea to check that the furnace is running smoothly after you’re done.

Extra tips for keeping your furnace in top shape

• Label your filters. If you buy filters in bulk, think about labeling each one with the date you plan to install it. This helps you stick to a regular replacement schedule without forgetting when it’s time for a new one. Staying organized keeps your system efficient all year long.
• Understand filter ratings. Filters have different ratings that show how good they are at catching particles. Get familiar with MERV (Minimum Efficiency Reporting Value) ratings to pick the right filter for your needs. Higher ratings catch smaller particles but might reduce airflow if your system isn’t up for it. Finding the right balance between filtration and your HVAC’s abilities is important.
• Swap filters every 3 months. As a general rule, change your furnace filter every three months. But if you use your HVAC system a lot, have pets, or if anyone in your home has allergies, you might need to replace it more often. Regular changes keep your system running well and your indoor air clean.

Need a hand?

If you’re unsure about any step or need some extra guidance, don’t hesitate to reach out. Swing by our repair help section for more resources, or contact us directly. We’re here to assist with all your appliance repair questions.

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If you’ve got questions or need further assistance, feel free to reach out to our team. We’re always happy to help with your appliance repair projects.

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