It sounds like a waste of time. It also sounds like a waste of money. However, neither one of these things are true when it comes to changing your furnace filter.
Here are five reasons why you want to get into the habit of doing this regularly (as suggested by the filter manufacturer):
- Improve the air quality in your home (at all times of the year)
- Decrease your energy costs
- Allows your HVAC system to work at peak performance
- Extends the life of your furnace
- Helps maintain a clean HVAC system