80,000 BTU 80% Propane/Natural Gas Furnace, Multi-Positional 1-Stage 9-Speed R32

80,000 BTU, 80% AFUE natural gas furnace. For cooling functionality, this furnace must be paired with an outdoor AC or heat pump condenser unit and matching indoor evaporator coil. The tonnage of the AC should not exceed what tons the furnace blower is rated for; this information can be found in the spec tables below or in the pictures of each model above.

used American Standard S9V2 furnace

American Standard Gold S9V2 Series Gas Furnace – Model S9V2B040U3PSBCA (or closely matching variant) This is a high-efficiency, premium condensing gas furnace featuring 40,000 BTU/hr input rating and approximately 38,800–39,000 BTU/hr output (based on 96–97% AFUE). It’s a two-stage heating system with a variable-speed ECM blower motor for quiet, consistent airflow and improved comfort—running mostly on lower stage for even temperatures and energy savings.