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25
Dec
A 5-Minute Guide to the Most Common Furnace Filter Size and How to Choose Wisely
Is there such a thing as "the most common furnace filter size," and if so, what is it? How do you choose the best furnace filter size without making costly returns?
We'll tell you everything you need to know about common air filter sizes, including effective techniques on how to measure the ideal size for your home and more.
You'll also learn about the difference between nominal and actual size, and what these measurements mean.
Let's get started!
What Is a Furnace Filter and Why Does Size Matter?
Before looking into the most common furnace filter size, you'll want to know what "furnace filters" are and why it's important to choose the correct dimensions.
In short, a furnace filter is an "add-on" that helps remove dust, pet dander, pollen, mould spores, and other possibly harmful airborne particles as air passes through the HVAC system.
It comes in a variety of common air filter sizes, captures these contaminants and helps:
- Improve indoor air quality (IAQ) in your home environment, making it healthier for all family members, especially allergy-prone people.
- Maintain smooth and consistent airflow, which can improve energy efficiency and extend the lifespan of the system.
- Protect your HVAC unit's internal components from dust buildup and reduce wear and tear.
So, why do you need to know about the most common furnace filter size? Choosing the right size is vital because a poorly fitted filter can leave gaps, and this is where unfiltered air can slip through.
This means that the wrong furnace filter will be ineffective, and it can also strain your HVAC system. As a result, you might deal with higher energy bills and possible mechanical issues in the future.
Understanding Nominal vs. Actual Size
When shopping for the common air filter sizes, you'll come across "nominal" and "actual" size. Why do these matter, and what do these dimensions refer to?
Each furnace filter has a specific dimension (for instance, 16x25x5), and this is called "the nominal size." It's a rounded figure that's practical for labelling and shopping. However, nominal size and actual size aren't the same thing.
The actual size of the "16x25x5" furnace filter might be slightly off, perhaps 15-7/8 x 24-3/4 x 4-3/8 inches. These are subtle differences, but they matter! Again, being aware of the standard furnace filter size and what you need will help you shop more effectively.
To recap, when it comes to the most common furnace filter size, you need to remember that:
- Nominal size is the standard measurement or the simplified version that you can find on the packaging. This is what people think about when talking about “common air filter sizes.”
- Actual size is the precise measurement of the filter, and it is often smaller than the nominal dimension.
Many manufacturers use nominal sizes to standardize a product. Some Original Equipment Manufacturers (OEMs) adjust their filter sizes slightly to encourage you to buy their brand's replacements, possibly confusing.
On the bright side, United Filter offers the best aftermarket options that are designed to match these sizes at an affordable price.
How to Determine Common Air Filter Sizes That Match Your System?
Unsure about the standard furnace filter size? How can you check what size to get for your furnace? Determining the correct size is easy, and you can do it quickly in just five simple steps.
- Turn off your HVAC system: If you're interested in furnace filter sizes and you want to check what you need at home, start by turning off the power of your HVAC system. This is done for safety and to prevent dust from blowing around.
- Remove the current filter: Slowly and carefully slide out the old filter.
- Check for labels: Many filters feature their nominal size on the frame. If it's there, write it down for future reference.
- Measure the actual size: If you don't see a label on the filter, use a tape measure to check the exact height, width, and thickness.
- Compare with common air filter sizes: Options like 16x20x1, 16x25x1, 20x20x1, 20x25x4, and 16x25x5 are common. Compare your measurements to these dimensions to find your perfect match. Typically, the most common furnace filter size is 16x25x5.
Once you determined the measurements, you can confidently pick and choose among different furnace filter sizes to ensure proper filtration and airflow.
Most Common Furnace Filter Size: Different Sizes and Their Uses
Is there a standard home air filter size? Not really. However, some sizes are popular because many HVAC units are created to fit them. The most common furnace filter sizes are:
- 16x25x1: Some experts say that this is the most common furnace filter size, especially for residential systems. It's an effective filter size for basic air quality needs without restricting airflow.
- 20x20x1: Other experts claim that this is the most common furnace filter size, suitable for larger homes or environments requiring steady airflow. If you live in a big house, this could be your standard home air filter size.
- 16x25x4 or 16x25x5: This is a thicker filter that can capture finer particles. Homeowners who want superior indoor air quality say that this is the most common furnace filter size. If you or a loved one are struggling with allergies, consider this filter size.
When discussing the most common air filter sizes, many people say it's 16x25x4 or 16x25x5, but there’s no “universal” size. Talk to an expert to find out what the best option for your home could be.
Common Air Filter Sizes Confuse Me: How to Choose Quality!
You are more familiar with the most common furnace filter sizes, and you're ready to shop. How do you choose the highest-quality products, though? What do you need to know besides the most common air filter sizes?
Keep these four things in mind for the best shopping experience.
- Measure your existing filter or filter slot: Again, you want to confirm the exact size. Triple-check the filter that you already have for size indications and whether it is similar to the most common furnace filter size.
If it's not clearly labelled, measure it yourself with a tape.
- Identify any IAQ concerns: When choosing one of the many common HVAC filter sizes, you also want to think about the indoor air quality concerns in your home.
Do you have allergies? Pets? Respiratory issues? If you answered "yes, you'll want to get a pleated filter or one with a higher MERV rating.
MERV 11 is great for capturing pollen, pet dander, mould spores, dust mites and some smoke, while MERV 13 can capture particles as small as 0.3 microns, including some viruses and bacteria.
- Check compatibility with your HVAC: Another thing you'll want to consider with the common HVAC filter sizes is if they match your existing system.
If you're looking for a high-efficiency filter (higher MERV or even HEPA), make sure that your current system can handle it without airflow problems.
- Common air filter sizes and maintenance: Are you OK with replacing filters every 30 to 90 days, or do you prefer washable filters that save time and money over the long term? In addition to determining the most common furnace filter size, check the material it's made from.
Fibreglass filters are inexpensive and effective, but they need to be replaced every 30 days, whereas HEPA filters should be changed every 6 to 12 months (depending on usage).
Once you have all the information and have chosen one of the most common furnace filter sizes that best suits your budget, indoor air quality needs, and lifestyle, you can shop with ease.
Common Air Filter Sizes: FAQ
What is the most common furnace filter size for residential HVAC systems?
We recommend dimensions like 16x25x1 or 20x20x1 for residential HVAC systems. These common air filter sizes are widely available, making it simpler to find suitable replacements that fit well (if needed).
How do I know if I’ve chosen the most common size furnace filter for my HVAC unit?
Measure your old filter or check the filter spot and compare it with the most common furnace filter size. If your current measurements align with one of these well-known dimensions, you've likely found a fit!
Can using the wrong furnace filter size affect my home’s air quality?
Yes, using the wrong filter size can affect IAQ. If you install a filter that's too small or too large, gaps may form where unfiltered air can circulate. Choose one of the most common air filter sizes that properly fits your unit, and better filtration is guaranteed.
Will opting for a standard home air filter size save me money in the long run?
Yes, choose one of the common HVAC filter sizes, and you will easily find affordable and widely available replacements. This will reduce the chances of wasting money or making expensive repairs!
How much does the most common furnace filter size cost?
Our furnace filters are the most cost-effective on the market, and you can expect to pay around $54.99 for a 16x25x1 MERV 8 - Case of 6 (for 1-inch furnace filters). Browse our website to discover more deals and discounts and the most common size furnace filter.
Can I customize the most common furnace filter size?
Yes, United Filter allows you to custom-build the filter in three steps. The first step is measuring the filter, the second is choosing the MERV rating, and the third is selecting the size to nearest 1/8".
Grab the Most Common Air Filter Sizes Now
The search for the perfect filter size can be frustrating and stressful, especially if this is your first time buying filters. United Filter, based in Mississauga, Ontario, offers a wide selection of filter sizes to suit all preferences and needs.
You can easily choose the most common furnace filter size in just a few steps. Browse our website or shop today at #6 - 2624 Royal Windsor Dr., Mississauga, ON L5J 1K7, to access our collection of premium furnace filters!
A 5-Minute Guide to the Most Common Furnace Filter Size and How to Choose Wisely
Is there such a thing as "the most common furnace filter size," and if so, what is it? How do you choose the best furnace filter size without making costly returns?
We'll tell you everything you need to know about common air filter sizes, including effective techniques on how to measure the ideal size for your home and more.
You'll also learn about the difference between nominal and actual size, and what these measurements mean.
Let's get started!
What Is a Furnace Filter and Why Does Size Matter?
Before looking into the most common furnace filter size, you'll want to know what "furnace filters" are and why it's important to choose the correct dimensions.
In short, a furnace filter is an "add-on" that helps remove dust, pet dander, pollen, mould spores, and other possibly harmful airborne particles as air passes through the HVAC system.
It comes in a variety of common air filter sizes, captures these contaminants and helps:
- Improve indoor air quality (IAQ) in your home environment, making it healthier for all family members, especially allergy-prone people.
- Maintain smooth and consistent airflow, which can improve energy efficiency and extend the lifespan of the system.
- Protect your HVAC unit's internal components from dust buildup and reduce wear and tear.
So, why do you need to know about the most common furnace filter size? Choosing the right size is vital because a poorly fitted filter can leave gaps, and this is where unfiltered air can slip through.
This means that the wrong furnace filter will be ineffective, and it can also strain your HVAC system. As a result, you might deal with higher energy bills and possible mechanical issues in the future.
Understanding Nominal vs. Actual Size
When shopping for the common air filter sizes, you'll come across "nominal" and "actual" size. Why do these matter, and what do these dimensions refer to?
Each furnace filter has a specific dimension (for instance, 16x25x5), and this is called "the nominal size." It's a rounded figure that's practical for labelling and shopping. However, nominal size and actual size aren't the same thing.
The actual size of the "16x25x5" furnace filter might be slightly off, perhaps 15-7/8 x 24-3/4 x 4-3/8 inches. These are subtle differences, but they matter! Again, being aware of the standard furnace filter size and what you need will help you shop more effectively.
To recap, when it comes to the most common furnace filter size, you need to remember that:
- Nominal size is the standard measurement or the simplified version that you can find on the packaging. This is what people think about when talking about “common air filter sizes.”
- Actual size is the precise measurement of the filter, and it is often smaller than the nominal dimension.
Many manufacturers use nominal sizes to standardize a product. Some Original Equipment Manufacturers (OEMs) adjust their filter sizes slightly to encourage you to buy their brand's replacements, possibly confusing.
On the bright side, United Filter offers the best aftermarket options that are designed to match these sizes at an affordable price.
How to Determine Common Air Filter Sizes That Match Your System?
Unsure about the standard furnace filter size? How can you check what size to get for your furnace? Determining the correct size is easy, and you can do it quickly in just five simple steps.
- Turn off your HVAC system: If you're interested in furnace filter sizes and you want to check what you need at home, start by turning off the power of your HVAC system. This is done for safety and to prevent dust from blowing around.
- Remove the current filter: Slowly and carefully slide out the old filter.
- Check for labels: Many filters feature their nominal size on the frame. If it's there, write it down for future reference.
- Measure the actual size: If you don't see a label on the filter, use a tape measure to check the exact height, width, and thickness.
- Compare with common air filter sizes: Options like 16x20x1, 16x25x1, 20x20x1, 20x25x4, and 16x25x5 are common. Compare your measurements to these dimensions to find your perfect match. Typically, the most common furnace filter size is 16x25x5.
Once you determined the measurements, you can confidently pick and choose among different furnace filter sizes to ensure proper filtration and airflow.
Most Common Furnace Filter Size: Different Sizes and Their Uses
Is there a standard home air filter size? Not really. However, some sizes are popular because many HVAC units are created to fit them. The most common furnace filter sizes are:
- 16x25x1: Some experts say that this is the most common furnace filter size, especially for residential systems. It's an effective filter size for basic air quality needs without restricting airflow.
- 20x20x1: Other experts claim that this is the most common furnace filter size, suitable for larger homes or environments requiring steady airflow. If you live in a big house, this could be your standard home air filter size.
- 16x25x4 or 16x25x5: This is a thicker filter that can capture finer particles. Homeowners who want superior indoor air quality say that this is the most common furnace filter size. If you or a loved one are struggling with allergies, consider this filter size.
When discussing the most common air filter sizes, many people say it's 16x25x4 or 16x25x5, but there’s no “universal” size. Talk to an expert to find out what the best option for your home could be.
Common Air Filter Sizes Confuse Me: How to Choose Quality!
You are more familiar with the most common furnace filter sizes, and you're ready to shop. How do you choose the highest-quality products, though? What do you need to know besides the most common air filter sizes?
Keep these four things in mind for the best shopping experience.
- Measure your existing filter or filter slot: Again, you want to confirm the exact size. Triple-check the filter that you already have for size indications and whether it is similar to the most common furnace filter size.
If it's not clearly labelled, measure it yourself with a tape.
- Identify any IAQ concerns: When choosing one of the many common HVAC filter sizes, you also want to think about the indoor air quality concerns in your home.
Do you have allergies? Pets? Respiratory issues? If you answered "yes, you'll want to get a pleated filter or one with a higher MERV rating.
MERV 11 is great for capturing pollen, pet dander, mould spores, dust mites and some smoke, while MERV 13 can capture particles as small as 0.3 microns, including some viruses and bacteria.
- Check compatibility with your HVAC: Another thing you'll want to consider with the common HVAC filter sizes is if they match your existing system.
If you're looking for a high-efficiency filter (higher MERV or even HEPA), make sure that your current system can handle it without airflow problems.
- Common air filter sizes and maintenance: Are you OK with replacing filters every 30 to 90 days, or do you prefer washable filters that save time and money over the long term? In addition to determining the most common furnace filter size, check the material it's made from.
Fibreglass filters are inexpensive and effective, but they need to be replaced every 30 days, whereas HEPA filters should be changed every 6 to 12 months (depending on usage).
Once you have all the information and have chosen one of the most common furnace filter sizes that best suits your budget, indoor air quality needs, and lifestyle, you can shop with ease.
Common Air Filter Sizes: FAQ
What is the most common furnace filter size for residential HVAC systems?
We recommend dimensions like 16x25x1 or 20x20x1 for residential HVAC systems. These common air filter sizes are widely available, making it simpler to find suitable replacements that fit well (if needed).
How do I know if I’ve chosen the most common size furnace filter for my HVAC unit?
Measure your old filter or check the filter spot and compare it with the most common furnace filter size. If your current measurements align with one of these well-known dimensions, you've likely found a fit!
Can using the wrong furnace filter size affect my home’s air quality?
Yes, using the wrong filter size can affect IAQ. If you install a filter that's too small or too large, gaps may form where unfiltered air can circulate. Choose one of the most common air filter sizes that properly fits your unit, and better filtration is guaranteed.
Will opting for a standard home air filter size save me money in the long run?
Yes, choose one of the common HVAC filter sizes, and you will easily find affordable and widely available replacements. This will reduce the chances of wasting money or making expensive repairs!
How much does the most common furnace filter size cost?
Our furnace filters are the most cost-effective on the market, and you can expect to pay around $54.99 for a 16x25x1 MERV 8 - Case of 6 (for 1-inch furnace filters). Browse our website to discover more deals and discounts and the most common size furnace filter.
Can I customize the most common furnace filter size?
Yes, United Filter allows you to custom-build the filter in three steps. The first step is measuring the filter, the second is choosing the MERV rating, and the third is selecting the size to nearest 1/8".
Grab the Most Common Air Filter Sizes Now
The search for the perfect filter size can be frustrating and stressful, especially if this is your first time buying filters. United Filter, based in Mississauga, Ontario, offers a wide selection of filter sizes to suit all preferences and needs.
You can easily choose the most common furnace filter size in just a few steps. Browse our website or shop today at #6 - 2624 Royal Windsor Dr., Mississauga, ON L5J 1K7, to access our collection of premium furnace filters!
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