Gas Furnace -95.5% AFUE (WFSX)

95.5% AFUE Gas Furnace


Model : WFSX FER Compliant


  • Heating Efficiency of 96.0% AFUE in upflow and horizontal positions and up to 95.0% in downflow; California NOx approved
  • Direct-vent/sealed  combustion, single pipe venting or ventilated combustion air
  • Fixed-Speeds, Constant Torque (FCT) ECM Blower motor, single-stage gas valve
  • 4-way multiposition furnace
  • Hot surface ignition
  • LED diagnostics and self test feature
  • Stores fault codes during power outages
  • Adjustable heating air temperature rise
  • Adjustable cooling airflow
  • Approved for Twinning application (060F042 to 100C060) with accessory (order separately)
  • Approved for Manufacture Housing/ Mobile Home applications with accessory (order separately)
  • Certified to leak 2% or less of normal air conditioning CFM delivered when pressurized to 1-inch water column with all present air inlets, air outlets and condensate drain port(s) sealed


  • 1 year unit replacement limited warranty *
  • 20-year heat exchanger limited warranty
  • 10-year parts limited warranty (including compressor and coil) with timely registration
  • 5-year parts limited warranty (including compressor and coil) if not registered within 90 days of original installation

* See warranty certificate for details and restrictions

Title Type Size
Installation Instruction application/pdf
WFSX-Product-Specification application/pdf 1 MB