For optimal air quality and energy efficiency, it is important to know how often you should change your furnace air filter. The frequency of replacement depends on the type of filter and the age of the system. Generally, 3- to 4-inch filters should be changed every 6 to 9 months, while 5- to 6-inch filters should be replaced every 9 to 12 months. Boiler filters should be changed at least every three months.
The Environmental Protection Agency (EPA) recommends checking the filter once a month, especially during the winter, and changing it if it looks dirty. It is also important to check the manufacturer's recommendations for specific instructions on how often to change the filter. Thicker filters have more space to collect dirt and dust, so they don't need to be changed as often. Thomas & Galbraith Heating, Cooling and Plumbing of Ohio recommends changing filters less than 2 inches thick every 30 to 90 days. The best way to determine when to change an oven filter is to perform a visual inspection of the filter every month.
If you notice that the filter is getting dirty quickly, you may need to re-evaluate your replacement schedule. This could be due to a new pet in the home or poor outdoor air quality. Additionally, if you are using an air conditioning system without any heating components, you do not need an oven filter. When you buy a new air filter, you'll find the manufacturer's recommendations for the replacement schedule. Cleaning your oven on your own saves you money, although you'll have to pay for the new oven filter and cleaning products.
The HVAC air filter helps keep indoor air clean by trapping particles of mold, pollen and other contaminants that circulate by the system. To ensure that only clean air comes out of the HVAC system, change the air filter before it clogs so you can breathe better. The most common symptoms of a dirty furnace filter are higher heating bills, poor air quality, and poor airflow. All air purification allows the air conditioning system to operate as efficiently as possible, reducing the cost of heating and cooling a home. Air pollution is one of the world's greatest environmental health risks, and indoor air is two to five times more polluted than outdoor air. The most common type of filter is a disposable pleated oven filter, but there are several options with different MERV ratings.
