For many people, the thought of changing your furnace filter is a new concept. This article will teach you how often you should go in and clean it out and the signs of a dirty filter so that you can keep your furnace running efficiently!

What is the purpose of a furnace filter?

A furnace filter’s purpose is to catch dust, dirt, and other pollutants that can harm your home’s air quality. Replacing your filter every year can help keep your home’s air clean and healthy.

How long should a new furnace filter last?

If you live in a warm climate, your furnace filter should be replaced every two years. If you live in a colder climate, your filter should be replaced yearly.

What are the differences between a type of filter?

There are a few different types of furnace filters, and each has its benefits. A carbon filter traps microscopic particles that can cause asthma, allergies, and other respiratory problems. A washable pre-filter catches larger particles before they enter the furnace, while a pleated or honeycomb filter eliminates dust and debris from the air. It’s essential to replace your furnace filter every six months or whenever the filter indicator light comes on.

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How often does a furnace need to be serviced?

Servicing your furnace regularly can help to keep your home comfortable and reduce the chances of problems. Here are some guidelines for when you should service your furnace: 

-Every three years: If you have central air conditioning, the system will need to be serviced at least every three years. This is because the filter in your furnace will become clogged over time and will not be able to remove pollutants effectively.

-Every six months: If you do not have central air conditioning, or if it is only used during specific months of the year, your furnace should be serviced every six months. Filters in furnaces can become clogged by dust and other particles created by burning fuel. Over time, this can lead to poor air quality and problems with your furnace.


It is essential to keep your furnace filter clean so that the filters can do their job and adequately remove dust, dirt, and other contaminants from the air in your home. However, it is also important to remember that the filter will need to be replaced at least once every six months or when it starts to show signs of wear or damage. It’s a good idea to check your furnace filter condition at least once a month and replace it as needed.