More than 10 years ago, a mere five words frightened desk jockeys everywhere: “sitting is the new smoking.” Still, many people across the U.S. are walking less than they used to. Long days spent sitting can take a toll over time, negatively impacting bodies and minds.

Heart disease is something many adults push to the back of their minds if they are not experiencing symptoms; a concern for “later” in life.

In fact, it can end up costing homeowners more in the long term due to a gradual decline in efficiency and more frequent repairs. In addition to savings over time, there are multiple reasons to replace an aging system this spring.