Air-Source vs Geothermal Heat Pump Lifespan in Southern Indiana Explained

Air-Source vs Geothermal Heat Pump Lifespan in Southern Indiana Explained

Southern Indiana’s humid summers and brisk, changeable winters are hard on outdoor HVAC equipment. If you’re deciding between an air-source heat pump (ASHP) and a geothermal/ground-source heat pump (GSHP), lifespan is a big part of the equation. In this region, air-source systems typically run 15–25 years, while geothermal indoor units often last 25–30+ years, with buried ground loops approaching 50 years when properly installed. The key difference is exposure: ASHPs live outdoors in the elements; most geothermal components live indoors or underground, away from weather and debris. Below, we break down how long these systems last here, what affects longevity, and how to make a smart, low-risk choice for your home. AC Repair Advisor helps Southern Indiana homeowners weigh longevity against cost and site conditions.