I just had my home energy audit completed and the one thing that was brought up was my furnace filter. The furnace filter help keep your air in your home clean and pollen free by trapping all of that dust and allergens before they get sent up through your heating ducts. That is the main benefit of having a filter. What many people don't know is that you have to change or clean that filter on a regular basis and that will help you save money.

When you filter becomes dirt and saturated with dirt, dust and things like pet hair it means that you furnace has to work harder to move the air through it. By replacing your old filter or cleaning your filter you are helping your furnace work more efficiently. I have read that you should be replacing your filter once a month. You can buy packs of them at your local hardware store.

There are many types. Disposable and reusable types that you can clean. I will leave it up to you to research which type you want to use but if you want to save money get in the habit of changing that furnace filter.