Trane’s 80 Single-Stage Builder-Grade Gas Furnace helps you save on energy usage while also reducing greenhouse gas emissions. With an 80% Annual Fuel Utilization Efficiency (AFUE) rating, you get more home comfort while saving on your energy bill. This hybrid system’s innovative technology combines a gas furnace with a heat pump to heat and cool your home efficiently and reliably. If you are searching for a great value HVAC system, the 80 Single-Stage Builder-Grade Gas Furnace is known for its strong performance and affordability.