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Changing Hvac Filter

Does Your Filter Need Changing? 6 Replacement Tips

A well-designed, quality home HVAC air filter plays a crucial role in cleaning the air circulating to ensure pollutants and particles are trapped and removed from the air. A bad filter can negatively affect your heating and cooling system, health, and home. Read through some important questions people have about air filters and how to ensure they are performing as they should!

How Often Should I Replace My Furnace Filter?

It depends on its quality, how much air goes through it every day, how well you take care of it, and how many square feet it filters. The National Air Filter Association recommends changing your filter at least every three months to protect your system and your family’s health. However, you should replace filters more frequently if you are in an area where there are a lot of allergens or pollutants.

When Should I Replace my Furnace Filter?

If your filter needs to be changed, you can tell by looking at it. If there’s dust or dirt in your house, it could mean that you need to change your filter. Check the filter on your furnace often, especially if it’s in a busy area like the kitchen. It’s also a good idea to mark in your planner or calendar when you change the filter. If you own pets or have allergies, you might need to change your filter more often than NAFA suggests.

How Do I Know What Size to Get?

This is a very common question, and it’s an important one to consider when searching for the right furnace filter. Your filter should be at least as big as the area it covers, and it should be 3 to 5 inches bigger than that area. If you have a large-capacity air filter, you should check the filter’s surface area to make sure it is big enough to filter the amount of air going through it.

The most accurate way to find the right size is to measure it manually if you already lost its packaging. Find the extent that the filter is covering and compare it to the manufacturer’s recommendations for that product.

How Do I Know What Type of Filter I Need?

There are many different kinds and groups of filters, making it hard to choose the right one for your home. If you have some allergies or asthma, you might find that an electrostatic filter helps. These filters can cost more than regular filters because they are often made of synthetic fibers that attract allergens and other pollutants. More than 99 percent of particles 0.3 microns or bigger can’t get through standard HEPA filters, which are less expensive.

Do I Need to Get a New Filter Every Time I Get a New Furnace?

If you can change the filter yourself, you may not need to purchase a new filter every time you have a new furnace. However, if you aren’t able to change your filter yourself, you may need to get a new filter every time you get a new furnace. Be sure to ask your HVAC technician if the filter is compatible with your new furnace or if you need to purchase a new one.

How Do I Get My Furnace Filter Changed?

There are several ways to change the filter in your furnace. If you’re handy enough, you can do it yourself. If you don’t know how to change your filter, you can always call a contractor or HVAC expert. If you have your furnace serviced, the technician will change the filter if needed. You can also hire an HVAC company to change the filter for you. Numerous places offer maintenance or filter replacement to keep your system functioning smoothly.


The saying goes, “An ounce of prevention is worth a pound of cure.” When it comes to furnace filters, this is especially true. It’s straightforward to forget to change a furnace filter for too long. But if you take the time to change your filter regularly, you can improve the air quality in your home and save money at the same time!

If you have any more questions concerning furnace repair in Castle Rock, please do not hesitate to contact CG Heating and Cooling. We have over 20 years of expertise and can handle all your heating and conditioning requirements. Contact us today to learn more about how we can assist you!