How to Replace an Air Filter in a Furnace or Boiler System

Replacing an air filter in a furnace or boiler system is an important part of keeping your home safe and efficient. It is essential to choose the right size and type of filter for your system, as well as to replace it regularly. In this article, we will discuss the considerations you should take into account when replacing an air filter in a furnace or boiler system. First and foremost, never try to fit a larger air filter into a small vent slot.

Doing so can cause inadequate filtration and allow contaminants to enter your home. Additionally, it is not recommended to use a furnace filter that is too thin for the boiler filter slot. Most air filter manufacturers and HVAC companies suggest changing the air filter every 90 days or 3 months. However, this can vary depending on the location of your home, if you have pets, and how old the system and equipment are.

If you have pets at home, you should consider changing the filter every 60 days or every 2 months. For homes with multiple pets or people with allergies or respiratory conditions, we recommend that you change the filter every 20 to 45 days. Vacation homes or vacant homes that don't get much use usually wait to change the filters every 9 to 12 months. The more you use your home, the more often you will need to change your air filter. When selecting a new filter, make sure that it requires fewer changes and captures more particles, including the smallest ones.

It is important to note that there are high-efficiency filters that are designed to filter out small particles of bacteria, mold and mildew, but standard MERV 8-11 filters only block larger particles of dust, dirt and hair.Carbon filters can also be added to an air conditioning system to provide additional filtration against smoke, kitchen odors and pets. If your system has filters inside the air return ducts scattered in several rooms of the house, they should be changed routinely as well. To do this, check the size of your current filter or check the equipment manual to determine the correct specifications. In general, filters with a MERV rating of 16 or lower are considered suitable for air conditioning systems for residential, commercial and general hospital use. The multimedia air filter is a four-inch filter that usually doesn't need to be replaced until 6 to 12 months later. By changing the air filter routinely, you can prevent the fan from stopping working or the ducts from having to be cleaned regularly due to dust circulating around the house.

This will help maintain the efficiency and safety of your home.

Simon Genz
Simon Genz

Infuriatingly humble social media practitioner. Incurable communicator. Friendly internet trailblazer. Zombie fan. Lifelong foodaholic.