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22
May
Furnace Filter Change Frequency Made Easy: Save Energy and Cut Down on Those Bills!
How often to change the furnace filter? We hear this question all the time. The short answer is every 30 to 90 days for most pleated media.
Sounds simple, but factors like wildfires, pets, and MERV ratings can shift that window.
Furnace filter change frequency can depend on these things, as well as the speed of your blower. So, how often to change the furnace filter and what should you know to keep your HVAC running optimally?
Below, you'll learn about filter change frequency for the most popular thicknesses and ratings, the three crucial things to keep in mind, and much more.
We'll also tell you why AC filter change frequency matters and how to do the replacement yourself.
Furnace Filter Change Frequency: Why Do Regular Replacements Matter?
Before learning how often to change the furnace filter, let's talk about why regular replacement matters. We can think of at least three important reasons any homeowner should stay on track with furnace filter change frequency.
-
Energy use: A clogged pad can raise static pressure 0.2 in w.c., cutting airflow and forcing the motor to draw more watts. Replacing a dirty filter can trim heating and cooling costs.
-
Air quality: Dust bypass coats the coil and recirculates allergens. To breathe in healthy, clean air indoors, keep up with furnace filter change frequency.
-
Equipment life: Overheating trips limit switches. Also, ECM motors over-amp and fail early. Learn how often to change the furnace filter to make sure your device lasts a long time.
Since the risks can quickly stack up and lead to expensive repairs in the future, it's best to keep a calendar and be mindful of AC filter change frequency. You'll learn some more helpful tips to keep yourself reminded in this article.
Air Filter Change Frequency By Type: A Quick Overview
Filter change frequency can depend on the type of material you choose. Here's a look at the most common filter types and what to expect.
-
Fibreglass pad: Usually, it's 1-inch thick and needs to be replaced every 30 days. Despite offering low capture efficiency, it's a low-cost option suitable for budget-friendly households. We recommend checking it twice a month.
-
Pleated MERV 8: 1-inch thick and usually needs to be changed every 60 days. It's suitable for families without pets dealing with minimal pollution problems.
-
Pleated MERV 11 (1-inch): It should be replaced every 45 days. We recommend this option for most households with allergies or one pet.
-
Pleated MERV 11 (4–5 inches): It has a larger media area that keeps air pressure low. Usually, this option can last about six months.
-
Pleated MERV 13 (4–5 inches): This option is recommended for high-pollution or wildfire-prone areas. The typical furnace filter change frequency is around 4 months.
-
HEPA: The word “HEPA” refers to High-Efficiency Particulate Air (filter). When it comes to HEPA filter change, you’ll typically want to make the swap every six to nine months. Always follow the label instructions as the air bypasses the filter only part of the time.
Most pleated filters under "normal" conditions should be replaced between 60 to 90 days (two to three months). Again, make sure to read any instructions provided or contact a trusted professional for expert advice.
Air Filter Change Frequency and Factors That Can Tighten the Schedule
How often to change the furnace filter? Again, it's usually between two to three months. However, several factors can shorten this time frame. Find out which are these factors below.
-
Pets: Families with a dog or a cat will usually need to be more mindful of frequent furnace filter change frequency due to dander.
Often, one or two pets means the replacement should be performed 15 days sooner, or one month earlier for homes with multiple animals.
-
Burning candles or smoking: Soot can load media fast, so inspect your filter monthly.
-
Renovation dust: How often to change the furnace filter? If you’re doing renovation work, it should be relatively often. If there’s a lot of drywall sand, consider swapping the pad when the contractor packs up.
These triggers explain why air filter change frequency should be a living number, not a fixed date on the calendar.
How Often to Change the Furnace Filter: 3 Key Rules to Keep in Mind
We want you to know everything there is about HVAC filter change frequency. So, we've asked the pros to tell us three more key things to remember.
-
High indoor humidity breeds mould on the filter: Usually, if relative humidity stays over 60 percent, moisture can collect on the media and spores may start to grow. Keep a closer eye on summertime and basement filters and swap them out as soon as they feel damp.
Another key sign of mould and mildew is a funky smell in the home. As soon as the smell is off, consider changing your furnace filters.
-
Closing too many supply vents spikes static pressure: It may seem thrifty to shut off several rooms. However, the blower will have to push against extra resistance. As a result, particles might be forced onto the surface of the filter.
If more than one or two vents are shut, consider inspecting the filter each month.
-
Portable HEPA purifiers can extend furnace filter life: A standalone unit in the living area grabs a share of the dust load. In practice, we find a 1-inch pleated filter often lasts the full 90 days when a purifier is running nearby.
Speaking of air purifiers, some people enjoy the "DIY approach" and say fantastic things about the Corsi Rosenthal Box. It's a cost-effective solution to boost IAQ easily.
How often to change the furnace filter? It depends on your situation. If you aren’t sure how to check it alone, contact an expert.
Know This About MERV Ratings and Thickness
The term "MERV" is short for Minimum Efficiency Reporting Value, and it is an important rating system for air filters. It shows how well the air filter traps particles, such as dust or pet dander.
Typically, the higher the rating, the more effective the filter is at capturing smaller, airborne particles.
For example, a 1-inch pleated MERV 13 can trap smoke but hits its dust-holding limit in 30 days. We recommend upgrading to a 4-inch rack and the same media can last four months.
That's because the pleats are deeper and more numerous. If your blower struggles with HVAC filter change frequency, it's a good idea to switch to a thicker housing. This can double service life without dropping MERV.
How to Change Furnace Filter?
You know when to change a furnace filter, but how do you actually do it? The process is easy once you're aware of these simple steps below. It all starts with shutting off the thermostat.
-
Slide out the old filter and make sure to check which direction the arrow is pointing; this signifies the direction of the airflow.
-
Vacuum any loose lint inside the rack and make sure it's clean.
-
Place the new pad with the arrow pointing toward the blower.
-
Check the date on the frame.
-
Restart the system and listen for any rattles; if there are none, it means the fit is snug.
Grab the highest-quality, discount furnace filters and do the swap as soon as it’s due to avoid possibly costly repairs in the long run.
How Often to Change the Furnace Filter: Set Smart Reminders
Some people like to take mental notes, but we recommend also adding a written reminder of when you did the last "filter swap".
Then, you will know when the next one is due. Another practical thing you can do is to order a six-pack of MERV 11 furnace filters and make replacement day the first of every second month.
Furnace Filter Change Frequency and Common Questions Answered
How often to change the furnace filter and what if the pad is still white? Is a higher MERV rating a good or bad idea? Let's have a chat and see what the experts say.
“How often should you change your furnace filter if you have pets?” - It depends on how many pets you have and any other factors like your lifestyle and living area. For example, if you have multiple pets, are a smoker, and live in a more polluted area, you’ll want to change furnace filters often, usually every three to six weeks.
"The pad looks white. Should I replace my furnace filter?" -Yes, if it's due time, it's time to change your furnace filter, even if the pad isn't completely dirty. This is because fine particles you cannot see can clog the weave. The best is to trust your calendar.
"Do high-MERV pads waste energy?" - Well, they do if you let them clog. Make sure you respect the furnace filter change frequency and swap out old pads on time.
"The thermostat fan is set to AUTO, so is once a season enough?" - Blowers may still run up to 10 hours a day during shoulder months for humidity control.
Furnace Filter Change Frequency: Conclusion
How often to change the furnace filter, you're wondering? Eventually, it comes down to MERV, thickness, and your lifestyle. For most households, the sweet spot is 60 days on a 1-inch pleated MERV 8, 45 days for MERV 11, and 30 days if pets or cigarette smoke join the picture.
It's best to follow the calendar, keep a spare on the shelf, and invest in high-quality furnace filters in Canada. Lock in the right furnace filter change frequency now and you will spend less on repairs, energy, and allergy meds.
If you're interested in purchasing the best air filters for furnace, contact United Filter today. You can reach us by phone at (905) 403-0160 or toll-free at (844) 834-5837.
Furnace Filter Change Frequency Made Easy: Save Energy and Cut Down on Those Bills!
How often to change the furnace filter? We hear this question all the time. The short answer is every 30 to 90 days for most pleated media.
Sounds simple, but factors like wildfires, pets, and MERV ratings can shift that window.
Furnace filter change frequency can depend on these things, as well as the speed of your blower. So, how often to change the furnace filter and what should you know to keep your HVAC running optimally?
Below, you'll learn about filter change frequency for the most popular thicknesses and ratings, the three crucial things to keep in mind, and much more.
We'll also tell you why AC filter change frequency matters and how to do the replacement yourself.
Furnace Filter Change Frequency: Why Do Regular Replacements Matter?
Before learning how often to change the furnace filter, let's talk about why regular replacement matters. We can think of at least three important reasons any homeowner should stay on track with furnace filter change frequency.
-
Energy use: A clogged pad can raise static pressure 0.2 in w.c., cutting airflow and forcing the motor to draw more watts. Replacing a dirty filter can trim heating and cooling costs.
-
Air quality: Dust bypass coats the coil and recirculates allergens. To breathe in healthy, clean air indoors, keep up with furnace filter change frequency.
-
Equipment life: Overheating trips limit switches. Also, ECM motors over-amp and fail early. Learn how often to change the furnace filter to make sure your device lasts a long time.
Since the risks can quickly stack up and lead to expensive repairs in the future, it's best to keep a calendar and be mindful of AC filter change frequency. You'll learn some more helpful tips to keep yourself reminded in this article.
Air Filter Change Frequency By Type: A Quick Overview
Filter change frequency can depend on the type of material you choose. Here's a look at the most common filter types and what to expect.
-
Fibreglass pad: Usually, it's 1-inch thick and needs to be replaced every 30 days. Despite offering low capture efficiency, it's a low-cost option suitable for budget-friendly households. We recommend checking it twice a month.
-
Pleated MERV 8: 1-inch thick and usually needs to be changed every 60 days. It's suitable for families without pets dealing with minimal pollution problems.
-
Pleated MERV 11 (1-inch): It should be replaced every 45 days. We recommend this option for most households with allergies or one pet.
-
Pleated MERV 11 (4–5 inches): It has a larger media area that keeps air pressure low. Usually, this option can last about six months.
-
Pleated MERV 13 (4–5 inches): This option is recommended for high-pollution or wildfire-prone areas. The typical furnace filter change frequency is around 4 months.
-
HEPA: The word “HEPA” refers to High-Efficiency Particulate Air (filter). When it comes to HEPA filter change, you’ll typically want to make the swap every six to nine months. Always follow the label instructions as the air bypasses the filter only part of the time.
Most pleated filters under "normal" conditions should be replaced between 60 to 90 days (two to three months). Again, make sure to read any instructions provided or contact a trusted professional for expert advice.
Air Filter Change Frequency and Factors That Can Tighten the Schedule
How often to change the furnace filter? Again, it's usually between two to three months. However, several factors can shorten this time frame. Find out which are these factors below.
-
Pets: Families with a dog or a cat will usually need to be more mindful of frequent furnace filter change frequency due to dander.
Often, one or two pets means the replacement should be performed 15 days sooner, or one month earlier for homes with multiple animals.
-
Burning candles or smoking: Soot can load media fast, so inspect your filter monthly.
-
Renovation dust: How often to change the furnace filter? If you’re doing renovation work, it should be relatively often. If there’s a lot of drywall sand, consider swapping the pad when the contractor packs up.
These triggers explain why air filter change frequency should be a living number, not a fixed date on the calendar.
How Often to Change the Furnace Filter: 3 Key Rules to Keep in Mind
We want you to know everything there is about HVAC filter change frequency. So, we've asked the pros to tell us three more key things to remember.
-
High indoor humidity breeds mould on the filter: Usually, if relative humidity stays over 60 percent, moisture can collect on the media and spores may start to grow. Keep a closer eye on summertime and basement filters and swap them out as soon as they feel damp.
Another key sign of mould and mildew is a funky smell in the home. As soon as the smell is off, consider changing your furnace filters.
-
Closing too many supply vents spikes static pressure: It may seem thrifty to shut off several rooms. However, the blower will have to push against extra resistance. As a result, particles might be forced onto the surface of the filter.
If more than one or two vents are shut, consider inspecting the filter each month.
-
Portable HEPA purifiers can extend furnace filter life: A standalone unit in the living area grabs a share of the dust load. In practice, we find a 1-inch pleated filter often lasts the full 90 days when a purifier is running nearby.
Speaking of air purifiers, some people enjoy the "DIY approach" and say fantastic things about the Corsi Rosenthal Box. It's a cost-effective solution to boost IAQ easily.
How often to change the furnace filter? It depends on your situation. If you aren’t sure how to check it alone, contact an expert.
Know This About MERV Ratings and Thickness
The term "MERV" is short for Minimum Efficiency Reporting Value, and it is an important rating system for air filters. It shows how well the air filter traps particles, such as dust or pet dander.
Typically, the higher the rating, the more effective the filter is at capturing smaller, airborne particles.
For example, a 1-inch pleated MERV 13 can trap smoke but hits its dust-holding limit in 30 days. We recommend upgrading to a 4-inch rack and the same media can last four months.
That's because the pleats are deeper and more numerous. If your blower struggles with HVAC filter change frequency, it's a good idea to switch to a thicker housing. This can double service life without dropping MERV.
How to Change Furnace Filter?
You know when to change a furnace filter, but how do you actually do it? The process is easy once you're aware of these simple steps below. It all starts with shutting off the thermostat.
-
Slide out the old filter and make sure to check which direction the arrow is pointing; this signifies the direction of the airflow.
-
Vacuum any loose lint inside the rack and make sure it's clean.
-
Place the new pad with the arrow pointing toward the blower.
-
Check the date on the frame.
-
Restart the system and listen for any rattles; if there are none, it means the fit is snug.
Grab the highest-quality, discount furnace filters and do the swap as soon as it’s due to avoid possibly costly repairs in the long run.
How Often to Change the Furnace Filter: Set Smart Reminders
Some people like to take mental notes, but we recommend also adding a written reminder of when you did the last "filter swap".
Then, you will know when the next one is due. Another practical thing you can do is to order a six-pack of MERV 11 furnace filters and make replacement day the first of every second month.
Furnace Filter Change Frequency and Common Questions Answered
How often to change the furnace filter and what if the pad is still white? Is a higher MERV rating a good or bad idea? Let's have a chat and see what the experts say.
“How often should you change your furnace filter if you have pets?” - It depends on how many pets you have and any other factors like your lifestyle and living area. For example, if you have multiple pets, are a smoker, and live in a more polluted area, you’ll want to change furnace filters often, usually every three to six weeks.
"The pad looks white. Should I replace my furnace filter?" -Yes, if it's due time, it's time to change your furnace filter, even if the pad isn't completely dirty. This is because fine particles you cannot see can clog the weave. The best is to trust your calendar.
"Do high-MERV pads waste energy?" - Well, they do if you let them clog. Make sure you respect the furnace filter change frequency and swap out old pads on time.
"The thermostat fan is set to AUTO, so is once a season enough?" - Blowers may still run up to 10 hours a day during shoulder months for humidity control.
Furnace Filter Change Frequency: Conclusion
How often to change the furnace filter, you're wondering? Eventually, it comes down to MERV, thickness, and your lifestyle. For most households, the sweet spot is 60 days on a 1-inch pleated MERV 8, 45 days for MERV 11, and 30 days if pets or cigarette smoke join the picture.
It's best to follow the calendar, keep a spare on the shelf, and invest in high-quality furnace filters in Canada. Lock in the right furnace filter change frequency now and you will spend less on repairs, energy, and allergy meds.
If you're interested in purchasing the best air filters for furnace, contact United Filter today. You can reach us by phone at (905) 403-0160 or toll-free at (844) 834-5837.
Vee Popat
