What is the average air filter size?
Here are some of the most common furnace and AC filter sizes: 10 X 20 X 1'' 14 X 20 X 1'' 16 X 24 X 1''
How do I know what size filter to buy for my furnace?
The easiest way to find out what size filter to get for your furnace is to simply remove your current filter and look at its dimensions. These are typically printed along one of the sides of your filter.
How do I know what size air filter to buy?
Disposable Furnace Filters – How to Measure Correctly You want your air filter to cover the duct opening. Measure the height and width of the duct opening and allow for a bit of overlap if you have room. This will be the exact size that you need to order for your new air filter.
Do furnace filters have to be exact size?
Since air filters are most often sold by their nominal dimensions, it is crucial to learn how to properly measure your air filter. When making your purchase, you should order your filter by its nominal size, rather than its actual size.
What is a standard furnace filter size?
10x20What is the most common size furnace filter? Currently, the most common size furnace filters are 10x20. But should your system need custom sized air filters, note that we offer custom sizing ranging from 8 x 24 x 1 to 25 x 30 x 1.
What type of furnace filter do I need?
The higher the MERV, the better the filter. Typical MERV ratings for residential furnace filters are between 6 and 12. If you're concerned about indoor air quality, the Environmental Working Group recommends a MERV 10 or higher.
What happens if your furnace filter is too big?
If the filter is too big, then it won't fit into the filter slot and you won't be able to put the cover back on. This can cause dirty air to infiltrate the inside of your furnace (and home).
Should a furnace filter fit tight?
A furnace filter should fit snug inside of your unit. If it is too loose, then air will still come in even while your furnace is running. On the other hand, if it is too tight, you may not be able to remove the filter when it is time to change (if that's what you decide).
Can I use the wrong size air filter?
The biggest concern when you use the wrong size air filter is that it may not effectively prevent dust from building up on your HVAC system's motors and blowers. This dirties up your furnace which could affect its performance or possibly harm the system's internal components, leading to costly repairs or replacements.
What happens if you use a smaller furnace filter?
An improperly sized air filter doesn't do its job. When it's too small, it lets dust, mold, and other contaminants into your air vents. These then spew into your air, providing air quality problems.
How often should you change your furnace filter in the winter?
every three monthsProfessionals, like our team at Airco Service, Inc. say that you should change your air filter at least every three months. During the winter, when you rely on your heating system more, you want to increase that frequency. During the winter, when the system is in constant use, change it out every month.
Can I use a smaller filter in my furnace?
While a 4-inch-thick filter is more efficient than a 1-inch filter, the right size depends on your furnace. If you measure the filter slot, and it's large enough to accommodate the thicker filter, then you can use it. However, if the slot is less than 4 inches wide, you're stuck with using that thickness.