Skip to main content

Can furnace filters be cut to size?

Can furnace filters be cut to size?

Some manufacturers can even customize the filters for you to fit perfectly when you or your HVAC team puts everything together. Simply put, yes, you can cut an air filter if you know what you are doing, and if the filters you use will not become too weak from the cutting.

Does width of furnace filter matter?

In most situations that is the case. Thicker air filters tend to last longer because they have more square footage to capture and hold air particles. To put it in perspective, a 1-inch air filter may need to be changed every month whereas a 4-inch air filter could last up to six months.

What are the sizes of furnace filters?

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”
  • 18 X 30 X 1”
  • 20 x 20 x 1.
  • 16 x 25 x 1.
  • 20 x 25 x 1.
  • 20 x 25 x 4.

Is a 2 inch filter better than a 1 inch?

Well, the thicker the filter the less restrictive it is. This contributes to a better flow of purified air. This means that 2-inch furnace filters allow a better flow of air than 1-inch filters.

Do thicker furnace filters work better?

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.

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).

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.

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 MERV rating is best for home use?

between 8-10
In general, the best MERV rating for a home is somewhere between 8-10. These filters will capture a large portion of the airborne particles and improve indoor air quality without making your energy costs rise significantly.

What happens if your furnace filter is too small?

If the filter is too small, it won’t cover the entire space and may allow dust and dirt to flow past. If you’re not sure what size filter you need, check the manufacturer’s specifications or ask your HVAC technician for help choosing the right product.

What if my furnace filter is too big?

Are pleated filters bad for your furnace?

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.

Will MERV 12 hurt my furnace?

The short answer is that it can, but it’s not really an issue except under extreme circumstances. Most modern HVAC systems have no problem working with higher MERV filters, which is why millions of homeowners depend on them.

Can I use a 1 inch furnace filter instead of a 4 inch?

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.

Is it bad to have the wrong size air filter?

What happens if you use a furnace filter that is too small?

How often do furnace filters need to be replaced?

The 90-day recommendation is for 1- and 2-inch filters. If you have a thicker model, the filter life extends. For 3- and 4-inch filters, plan for a replacement about every six to nine months. If you have the larger 5- or 6-inch filters, they will need replacing every nine to 12 months.

What is the difference between fiberglass and 20x24x2 air filters?

20x24x2 pleated air filters are at least 20 times more efficient than fiberglass filters. Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

What is the difference between glasfloss Z line and 20x24x2 filters?

The 20x24x2 Glasfloss Z-Line Series pleated filters offer improved performance for virtually every application. All Glasfloss Z-Line pleated filters feature fibers which do not absorb moisture. The Glasfloss Z-Line Series filters achieve a MERV 8 rating per the ANSI/ASHRAE 52.2 Test Standard.

What is an Aerostar furnace air filter?

Aerostar filters are a simple and cost effective step towards a healthier home environment, free of airborne allergens and particles that can trigger various allergy and asthma symptoms. An Aerostar furnace air filter helps keep your HVAC unit working efficiently by removing dirt and reducing strain on the motor.

Where are all air filters made?

All air filters are manufactured by FilterBuy in the USA using 100% American made components. By purchasing directly from the manufacturer, you’re saving big on a premium product.