When To Replace Furnace Air Filter

There s no such thing as a standard size air filter.

When to replace furnace air filter.

Filters are designed to trap dust and airborne particles as air is drawn through the filter and into the furnace system. All the home air filter sizes. A furnace filter s job is to remove contaminants from your indoor air and keep air flowing properly through your heating and cooling system. Furnace filters are sold at home centers hardware stores and online.

About furnace filters. This video shows you how to remove the furnace. Your hvac doesn t have to work as hard to push air through a clean filter. Disposable ones are typically 1 or 2 inches thick.

A clean furnace filter traps dirt and allergens and makes your furnace run more efficiently and last longer. If you don t change the filter lack of airflow through the furnace will cause it to overheat and shut down. Home air filters protect your hvac system but can be harmful if you don t change them regularly. Get the right replacement.

Similarly a dirty filter can cause an air conditioner to shut down because the coils freeze up when airflow is inadequate. Set the furnace s thermostat to the off position. If the furnace turns on while there is not filter in it then it can suck up potentially damaging loose debris. This will prevent the furnace from turning on while you are checking or replacing the filter.

The frequency at which your air filter should be changed depends on a variety of factors including the type of filter in your hvac unit. Pleated air filters are usually made of higher quality materials and can last anywhere from three to six months depending on the material. The longer the filter is in place the more dirt dust and allergens are trapped clogging the filter and decreasing their efficiency. Lastly you can save money on energy bills when you replace your home air filter.

Air circulating through your system passes through the filter usually located between the return air ducting and your furnace or air handler where contaminants are removed before moving to the heating or cooling system for. As a general rule you ll want to replace pleated air filters and furnace filters in your home every 90 days. Both events stress the system. Turn off your furnace before checking or replacing the filter.