When To Change Your HVAC Filter

It is essential for homeowners to take excellent care of their HVAC systems to keep them in good working order. You can start by changing your air filter regularly. This will keep your heating, ventilation, and air conditioning system working well, which will keep your energy costs to a minimum. It is common for homeowners to forget to replace HVAC air filters as often as they should, but filters should be changed whenever they become dirty. How often do filters need to be replaced? The following tips will help you to decide what is best for your household.

How Frequently to Change Your Air Filters

You should change the air filter on your HVAC system once per month if you use the cheaper fiberglass air filters. If you use the higher quality pleated filters that are available, you may not need to change them for up to six months. When deciding how frequently to change your filter, you should consider the quality and size of the filter as well as other essential factors such as whether or not you have pets or allergies.

While most people can benefit from changing their pleated air filters every ninety days, some homeowners may need to replace them much more often. The longer you wait to change an air filter, the more dust, dirt, and allergens become clogged in it, which can reduce the efficiency of the HVAC system.

The questions below will help you to decide how often your HVAC system filter needs to be changed. If you answer yes to any of the following questions, you will need to change your air filter on a more frequent basis.

Do you or anyone else in your household suffer from allergies or asthma?

According to the AAFA, the quality of indoor air is as important as outdoor air quality. Most people are well aware of the adverse effects of outdoor air pollution, but in some cases, indoor air can be even worse for people than the air outside. People with allergies or asthma are more sensitive to airborne contaminants than people who do not suffer from these health issues. If you or anyone living in the home has asthma or allergies, then you should change your air filter every six weeks to keep the air free from irritants.

Do you own a pet?

If you own a dog, cat, or another type of furry friend, then pet odors, hair, and dander are likely to build up over time. To keep your indoor air fresh and prevent pet-related debris from being pulled into the HVAC system pet owners should change their air filters every two months, especially during peak shedding seasons.

Does your household include young children?

If young children are living in the house, you need to make sure the indoor air quality is as good as possible. Changing your air filter at least every two to three months will keep the air inside of your home safe, fresh, and clean.

Three Things That Affect the Lifespan of an Air Filter:

1. The amount of time you use your HVAC system

If you are live somewhere that has a mild climate and you only need to turn on your heat or air conditioning for a few hours each week, one air filter may last for up to a year. On the other hand, if you live somewhere that has extreme seasonal weather conditions, and you are forced to run the heating and air conditioning non-stop, you will have to replace the filter much more frequently, says the Plano air conditioning experts. Changing it every few weeks, especially when using a fiberglass filter will keep your HVAC system running smoothly.

1. The size of the house you are heating and cooling

If you live in a small place and have a large HVAC system, it will not need to pump as much air when heating or cooling your home to the desired temperature. This means you will not have to change the filter as often as someone living in a larger house. If your home comes with a smaller system that holds small filters, you will need to replace the air filter just as frequently as someone who has a large HVAC system in a bigger home.

3. Indoor air quality

How often you need to change your HVAC air filter depends on the quality of air on both the inside and outside of your home. If the air quality outside of your home is poor or you have pets that are lowering the quality of the air inside of the house, you will need to replace your filter frequently.

How to Know When You Should Change Your HVAC Filter

The air circulating through your heating and air conditioning system eventually passes through the air filter. It is essential to replace the air filter as soon as it becomes dirty, so it does not become clogged.

A clogged air filter will:

  • Cause heating, ventilation, and air conditioning systems to malfunction and damage equipment.
  • Reduce system airflow, causing the fans to work harder, which wears them out at a faster pace.
  • Fail to remove contaminants and particulates in the air, which lowers the quality of air inside of your home.
  • Cause the system equipment to expend more energy when working harder to heat and cool the home, which raises your electric bill.
  • Cause debris to build up in the ductwork.

HVAC system filters should be checked each month. If they are dirty, they need to be replaced with a new air filter. You can hold up your air filter to the light to see if it is dirty or clogged. If the light does not shine through the filter, then it is time for it to be replaced.