Gas Furnace Comfort 80% AFUE 135000 BTU Single-Stage Multi-position 24.5-Inch-Wide Cabinet

The Gas Furnace Comfort 80% AFUE 135000 BTU Single-Stage Multi-position (58SB0B135M24--20) delivers a powerful 132,000 BTU input at 80% AFUE, engineered for flexible upflow, downflow, or horizontal installation. Its 24.5-Inch-Wide cabinet supports high airflow capacity and generous service access, making it well-suited for larger residential systems. This model features a Multi-18-Speed Constant Torque (MCT) ECM blower motor that provides quiet, consistent airflow and stable operation. Running on 115 V single-phase power, the furnace draws approximately 13-15 A on a recommended 20 A circuit and uses a ½ NPT gas connection for natural gas or propane. With a durable aluminized-steel primary heat exchanger, 4-way multipoise venting that supports up to 13 configuration options, and a temperature rise range of 45-75 °F, the 58SB0B135M24--20 offers dependable single-stage performance, long-term reliability, and versatile installation flexibility.