The Ducane 97G2DF045BE12K is a high‑efficiency downflow gas furnace designed for residential heating systems that require reliable performance in a compact footprint. With a 97% AFUE rating, it is engineered to convert most of its fuel into usable heat, making it suitable for homeowners looking to reduce energy waste. This model provides 45,000 BTU/hr of heating capacity and supports 3‑ton cooling applications, allowing it to integrate smoothly with matched air‑conditioning equipment in a complete HVAC setup. Its two‑stage heating operation helps maintain more consistent indoor temperatures, while the variable‑speed blower supports quieter airflow and improved comfort across different operating conditions. T