The Ducane 97G2UH045BE12K is a compact, high‑efficiency gas furnace designed for smaller residential spaces. With a 97% AFUE rating, it delivers reliable heating while keeping energy use low. Its two‑stage operation ensures consistent comfort, adjusting output to match demand without unnecessary fuel consumption. This model is well‑suited for homes where space is limited but dependable warmth is essential. Flexible installation options allow for both upflow and horizontal configurations, making it adaptable to different layouts. The 97G2UH045BE12K is a practical choice for homeowners seeking efficient heating performance in modest‑sized living areas. 🔹 Ducane 97G2UH070BE12K The Ducane 97G2UH070BE12K offers balanced heating for mid‑sized homes. With a 97% AFUE efficiency rating, it provides dependable warmth while helping reduce utility costs. Its two‑stage gas valve allows the furnace to adjust output based on demand, ensuring comfort without excessive energy use. Designed for flexibility, it supports both upflow and horizontal installation, making it suitable for a variety of home layouts. This model is ideal for households that need reliable heating capacity beyond a compact unit but don’t require the largest furnace size. The 97G2UH070BE12K delivers steady performance and efficiency for everyday residential applications. 🔹 Ducane 97G2UH090CE16K The Ducane 97G2UH090CE16K is built to serve larger homes with higher heating demands. Featuring a 97% AFUE rating, it combines efficiency with strong output to maintain comfort across expansive living spaces. Its two‑stage operation ensures smooth performance, reducing temperature swings and optimizing fuel use. With upflow and horizontal installation options, it adapts easily to different system designs. This furnace is well‑suited for households that require dependable heating capacity while still prioritizing energy efficiency. The 97G2UH090CE16K provides a practical solution for families seeking consistent warmth in larger residential environments. 🔹 Ducane 97G2UH110CE20K The Ducane 97G2UH110CE20K is the largest model in this series, designed for expansive homes or properties with significant heating needs. With a 97% AFUE rating, it delivers powerful performance while maintaining energy efficiency. Its two‑stage gas valve allows the furnace to adjust output, ensuring comfort without unnecessary fuel use. Compatible with cooling systems up to 5 tons, it integrates well into complete HVAC setups. Installation flexibility includes both upflow and horizontal configurations, making it adaptable to different layouts. The 97G2UH110CE20K is ideal for homeowners who need high BTU heating capacity paired with long‑term efficiency and reliability. Would you like me to also create a quick comparison chart showing the BTU ranges and best‑fit home sizes for each model? That way buyers can instantly see which furnace matches their space.