furnace filter To keep your furnace working as efficiently as possible and to avoid costly furnace repair in the future, you should change your furnace filter regularly.

Your furnace filter is responsible for filtering all of the air that is pulled into your furnace and sent back out throughout your home to heat and cool it. If you don’t have a furnace filter, you will likely distribute contaminants throughout your home whenever you use your heating and air conditioning system. Or if you do have a furnace filter but haven’t changed it in awhile, you will force your HVAC system to work harder to keep your home comfortable. Change your furnace filter every one to three months, and you should not need to have furnace repair done often.