When To Replace Furnace Air Filter

Fiberglass filters are a lower cost option but they need to be disposed of and replaced roughly every 30 days.

When to replace furnace air filter.

Both events stress the system. If you don t change the filter lack of airflow through the furnace will cause it to overheat and shut down. The general rule is to change a furnace filter usually located behind a. Filters are designed to protect the blower motor from dirt.

This will prevent the furnace from turning on while you are checking or replacing the filter. If the furnace turns on while there is not filter in it then it can suck up potentially damaging loose debris. Furnace filters are sold at home centers hardware stores and online. Disposable ones are typically 1 or 2 inches thick.

Pleated air filters are usually made of higher quality materials and can last anywhere from three to six months depending on the material. 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. About furnace filters. The longer the filter is in place the more dirt dust and allergens are trapped clogging the filter and decreasing their efficiency.

This video shows you how to remove the furnace. Turn off your furnace before checking or replacing the filter. Your hvac doesn t have to work as hard to push air through a clean filter. A furnace filter s job is to remove contaminants from your indoor air and keep air flowing properly through your heating and cooling system.

Similarly a dirty filter can cause an air conditioner to shut down because the coils freeze up when airflow is inadequate. Filters are designed to trap dust and airborne particles as air is drawn through the filter and into the furnace system. Lastly you can save money on energy bills when you replace your home air filter. Get the right replacement.

There s no such thing as a standard size air filter. As a general rule you ll want to replace pleated air filters and furnace filters in your home every 90 days. 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. Set the furnace s thermostat to the off position.