Measuring System Efficiency Determines Remaining Lifespan of Your 12-Year-Old HVAC Unit

https://precision247yearround.capitaljays.com/posts/ductwork-restriction-cuts-air-conditioning-lifespan-by-5-years-through-static-pressure-damage

Most HVAC systems last between 15 and 20 years, but your system's actual lifespan depends on efficiency metrics you can measure today