Can I change my air filter size?
The length, width, and depth of the filter are measured in inches. For example, it will say something like “16x25x1”, where 16” is the length, 25” is the width, and 1” is the depth. Once you know the old air filter’s size, you can easily go and purchase a new filter with the same dimensions.
How do I know what size my AC filter is?
The easiest way to identify your AC filter size is to remove the existing filter from its slot and examine the frame of the filter. Usually, the filter size is printed along the edge of the filter’s frame.
Are AC filter standard sizes?
Typically, nominal AC and furnace filter sizes are 1/4″ to 1/2″ bigger than the actual size. Luckily, if you know your filter’s actual size, figuring out the nominal size is easy. All you have to do is round each dimension up to the nearest inch.
How do I change my HVAC filter size?
Once you have the replacement filter, all you need to do is go through these 6 simple steps:
- Turn off your furnace.
- Find and locate your furnace filter.
- Determine the size of your filter.
- Remove the existing (old) filter.
- Insert the new filter.
- Return furnace to “on” position.
What happens if AC filter is too small?
If the filter is too dense, your heater or air conditioner may have to run longer to counter the increased air resistance. A too-small filter allows contaminants to accumulate on critical components, impairing performance. The right filter will improve your health and comfort without sending utility bills sky high.
Can I use a 1-inch filter instead of 4?
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.
Does size of air filter matter?
Some AC specialists have also noted that thicker filters are better at providing a tight fit that doesn’t allow unfiltered air through. At the same time, a thicker filter is less restrictive and will allow for better flow of purified air. A 4-5” filter is usually best for people that need superior filtration.
Can I use a 1 inch filter instead of 2?
The higher the MERV rating, the better the filter is at stopping the particles. This means that a 1-inch filter with a high MERV rating could work just as well as a 2-inch filter with the same rating. Most 1-inch filters are available in MERV ratings 1 to 12.
Can I use a 4 inch filter instead of 5?
Personally, as a home inspector, I recommend installing a 4-5 inch media filter if it is possible for your system. Most HVAC systems can be retrofitted to fit these thicker high efficiency filters. Your system will run better with more air flow, and the filter won’t clog as easily.
Can I use a thicker air filter?
Most air filters are 1 inch thick, but some systems can accommodate filters 2 to 5 inches thick. In our tests, we found that the thicker the filter, the better it works and the longer the replacement intervals. That means it’s better for you and for your heating, ventilating, and air conditioning (HVAC) system.
Will MERV 11 hurt my AC?
In particular, using an air filter with a MERV rating that’s too high can damage the compressor, heat exchanger, and air conditioner coil. In most cases, a MERV 11 air filter isn’t too high for residential use.
Are pleated filters bad for AC?
Pleated filters are bad for your system because they block too much air, forcing the HVAC motor to work harder to pull in the air it needs and burning it out faster.
Is no air filter better than a dirty one?
Running your air conditioner without a filter is worse than running it with a dirty one. Instead, get to the store as soon as possible for a replacement or call an HVAC professional for replacement. Without a filter, your air conditioner is at risk for severe and expensive problems.
What happens if air filter is backwards?
If you set your filter up backwards, the normally collective end of the device will not face the air supply. In effect, your filter will help keep debris in the air. This results in a clogged filter and improperly cleaned air when it reaches your lungs.
Can I run my AC without a filter for one night?
The short answer: You can get away with running your AC without a filter for a short amount of time without hurting your system. That being said, running your AC without a filter for longer than 6-8 hours can cause serious damage to your AC system and significantly lower the quality of the air in your home.
