Usually they round up or down to the nearest inch, so it is less likely that these two filters will fit the same furnace because of the rounding. However, if your filter is close to 20x25x4. 5, and the actual dimensions of the 20x25x5 filter are closer to 20x25x4. 5, than they might fit.
Going down in thickness by an inch shouldn't be a big deal - for example, you should be able to use a 4-inch filter instead of a 5-inch filter. If you are considering a thicker air filter in order to improve air quality it may be better to focus on the MERV rating.
actual size of an air filter can affect filter compatibility if it doesn't fit properly into the HVAC system filter slot. Ensuring the actual size aligns with your HVAC system's requirements, even when the nominal size matches, is important if you want system efficiency, proper filtration, and the best performance.
Using the wrong size filter reduces efficiency, air quality, and can even damage your HVAC system. You can learn more about the difference between furnace and AC filter sizes here.
While you can technically use a different size air filter, it's not recommended. An ill-fitting filter can allow unfiltered air to pass, reducing your system's efficiency and potentially causing damage. Always use the manufacturer's recommended filter size.
UNDERSTANDING FILTER SIZES
Therefore, for example, a 16x25x4 filter is 16 inches long, 25 inches wide, and 4 inches thick. It's important to note that filters with different dimensions are not interchangeable due to variations in frame size and media area.
If the air filter is the wrong size, unfiltered air can slip around the opening. Dirt can build up on the mass airflow sensor. With the sensor clogged, the engine can no longer determine how much fuel to mix for proper combustion. This will trigger the engine light.
This extra depth gives the filter more room for airflow. That means that as the filter collects dirt and other debris from your air, it won't restrict the airflow in your furnace as much. This prevents damage to the furnace and gives the filter itself a longer lifespan.
Yes, using the wrong size filter can lead to improper airflow, causing condensation to form in unwanted areas. This excess moisture can lead to leaks, particularly around the evaporator coils.
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 with one of the sides of your filter.
Currently, the most common size furnace filters are: 20 x 20 x 1. 16 x 25 x 1. 20 x 25 x 1.
Air filters come in many sizes, and various HVAC systems require filters of varying dimensions – you can't simply pick one up at your local big-box store at random. Using the wrong size filter can lead to a range of issues that affect the efficiency and functionality of the system.
This might seem like a small detail, but cutting an air filter down to a smaller size can sometimes damage the structural integrity of the filter. This is especially true for higher-end filters.
You cannot use a 20x25x4 filter in place of a 20x25x5 filter because the thickness is different. The 20x25x5 filter is designed for specific systems that require extra thickness for proper airflow and filtration. Always use the filter size recommended by your HVAC system's manufacturer to ensure optimal performance.
Fortunately, most 20x25x4 air filters last between six to eight months. By that calculation, the average homeowners will not need more than two 20x25x4 air filters in any given year. In contrast, a one-inch air filter will need to be changed every two to three months.
If you're switching to a different air filter manufacturer, it's best to use the actual size of your current filter when searching for a replacement. While nominal sizes are standardized, the actual sizes can vary slightly between manufacturers.
As a general rule, it is never a good idea to run your air conditioner or HVAC system without an air filter in place. Any amount of time spent doing so can lead to permanent damage and the possibility of needing expensive repairs.
What problems can a backward filter cause? The most common thing you will notice is the inefficiency of the filter. It will be harder for the air to flow, which would take a toll on your system. More strain means spiked utility bills.
Yes, higher MERV filters are more restrictive and reduce airflow. If you make adjustments to the HVAC system it can eventually handle the increased resistance.
In most cases, a MERV 11 air filter isn't too high for residential use. Generally speaking, anything under a MERV 13 air filter should provide very efficient air purification in a home without impacting airflow.
There is still a common misconception that having a high MERV rated filter will be too restrictive and strain your unit. However, most HVAC systems built in the last 20 years should have no issue using a MERV 6 - MERV 13 rated air filter.
It's important to have air filters in your home to prevent you from getting sick and get rid of harmful chemicals. But, using the wrong air filter size can restrict airflow and lead to more issues. It's easy to determine correct ac filter sizes by looking at an air filter size chart.
The average cost for an Air Filter Replacement is between $59 and $78. Labor costs are estimated between $27 and $34 while parts are priced between $32 and $44. This range does not include taxes and fees, and does not factor in your unique location.
A dirty air filter can cause your vehicle to throw a Check Engine code. During this instance, the Check Engine Light of your vehicle will turn on. The light turns on because your vehicle is sensing that its engine isn't receiving enough air.