Ultra Low NOx 80% AFUE Upflow/Horizontal Gas Furnace (W801T) Home > Products > Gas Furnaces > Ultra Low NOx 80% AFUE Upflow/Horizontal Gas Furnace (W801T) Ultra Low NOx 80% AFUE Upflow/Horizontal Gas Furnace (W801T) Warranty Registration Features Specs/Docs Peace-Of-Mind Performance: Relax, you’re covered by a dependable warranty—5 Year Parts + 10 Year Heat Exchanger.Efficient Comfort: Constant torque ECM motor technology delivers the heated airflow to meet your requested warmth requirement.Environmentally Friendlier: The ultra-low-NOx operation of this model helps you lower your carbon footprint by minimizing greenhouse gases. Specifications Environmentally friendly and responsible product reducing NOx emissions by 65%**Single Stage, Same 34" Cabinet Height, Simple TechnologyDiagnostics: 7-Segment LED for faster and more accurate diagnostics Ignition System: DSI for unmatched durability & years of worry-free operation DocumentsW801T Ultra Low Nox Upflow/HorizontalWeb Product ImageTax Credit FormWarranty WeatherKing Warranty Click below to register your WeatherKing® product. REGISTER WARRANTY