Gas Furnace Legacy 80% AFUE 155000 BTU Single-Stage Multi-position 24.5-Inch-Wide Cabinet

The Gas Furnace Legacy 80% AFUE 155000 BTU Single-Stage Multi-position 24.5-Inch-Wide Cabinet (800SB60155M24) delivers reliable high-capacity heating with an 80% AFUE rating and a normalized 155,000 BTU input, designed for large residential systems or commercial-light applications. It features a single-stage gas valve paired with a Multi-18-Speed constant-torque ECM blower motor, housed in a full 4-way multipoise cabinet measuring approximately 24.5 inch wide - 33 1/3 high - 29 deep. Worthy of professional consideration, it operates on 115 V single-phase power (104-127 V range), uses a ½ NPT field-convertible gas connection (natural gas or propane), supports sealed-combustion or ventilated-combustion-air venting across 13 approved configurations, and includes QuieTech noise-reduction, inner-door sealing for improved enclosure tightness, and service-friendly diagnostics with enhanced access for HVAC technicians.