How often should you change a 5 inch furnace filter?

In general, this is how often changing furnace filters needs to be done: For 1- to 2-inch filters, replace them every 1 to 3 months. For 3- to 4-inch filters, replace them every 6 to 9 months. For 5- to 6-inch filters, replace them every 9 to 12 months.

When should I replace my 5 inch air filter?

How Often Should I Change My HVAC Air Filter?

  • 1-inch and 2-inch air filters should be replaced about every one to three months.
  • 3-inch and 4-inch filters require replacement after six to nine months.
  • 5-inch and 6-inch air filters need a change after nine months to one year.

Are 5 inch filters better?

A thicker filter (4-5 inches) has more surface area and therefore allows more room for air to pass through. Thick filters, due to their increased surface area, also have other benefits like: Higher dust-holding ability (meaning it can catch a lot without blocking airflow)

How long does a 4 inch thick furnace filter last?

Three- or 4-inch filters can go for 6 to 9 months, and filters up to 6 inches thick can be replaced once a year. According to The Home Depot, the air quality where you live can affect how often your furnace filter needs to be changed.

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How often should I change my 4 inch air filter?

When to Change an Air Filter

Every three months for 1-inch to 2-inch filters. Every three months for pleated media filters. Every six months for 4-inch filters. Every 12 months for 5-inch filters.

Is a thicker furnace filter better?

The general best practice is to use the thickest air filter you can for maximum efficiency. … Higher MERV ratings work best when the filter is 4” thick or thicker because they trap extremely small particles, which means contaminants will build up quickly on the screen.

How often should furnace filter be changed?

Your furnace filter needs to be changed at least every 90 days (or cleaned, if you use a permanent filter). The filter has a dirty job – collecting airborne dust, hair, and other small particles so they don’t harm your furnace’s components. If the filter gets too full of gunk, it ends up restricting airflow.

What happens if your furnace filter is too small?

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.

Does furnace filter size matter?

Does Size Matter? You’ve guessed it! The answer is yes. It is essential to use the right size air filter for your HVAC unit to keep your system running smoothly and to reap all the benefits your air filter has to offer.

Does thickness of furnace filter matter?

The Thicker, the Better

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Furnace filters can range anywhere from 1″to 5″ in thickness. In general, the thicker the furnace filter is the more efficiently your unit work and the longer it will last.

How long do 5 inch furnace filters last?

In general, this is how often changing furnace filters needs to be done: For 1- to 2-inch filters, replace them every 1 to 3 months. For 3- to 4-inch filters, replace them every 6 to 9 months. For 5- to 6-inch filters, replace them every 9 to 12 months.

How long does a 6-inch furnace filter last?

Thicker filters don’t have to be changed as often, such as 6-inch filters, which can last between 9 to 12 months before they need to be replaced.

How do I know what furnace filter to buy?

First, locate the filter slot in your furnace/air handler. Some homes have filters behind their return vents as well. Furnace filter size is measured using length, width, and depth. For example, a furnace filter that measures 18”x16”x1” is 18 inches long, 16 inches wide, and 1-inch deep.

How long do Filtrete filters last?

Filtrete Filters are engineered and tested to last three months under a wide range of typical operating conditions.

How do I know when to replace my furnace filter?

The best test to know if a furnace filter is ready to be changed is to hold it up to a bright light . If you can still see light through the filter then air is still getting through the filter. If you suspect the filter is dirty enough to restrict the air flow, then change it out to a new filter.

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What are the sizes of furnace filters?

Furnace Filter Size by Model Number and Brand(With Nominal Sizes and Actual Sizes)

Furnace Filter Size (Nominal) Actual Size Good
2 Inch Deep Filters
10x20x2 9.5 x 9.5 x 1.75 MERV 8
12x12x2 11.5 x 11.5 x 1.75 MERV 8
12x20x2 11.5 x 19.5 x 1.75 MERV 8