58CTA/58CTX Gas-Fired Furnaces 







The 58CTA/58CTX two-stage, 4-way multipoise gas furnaces offer unmatched comfort in their class with ComfortHeat Technology in an 80% AFUE gas furnace. You get the benefits of a ComfortHeat Technology furnace: reduced drafts, reduced sound levels, longer cycles, less temperature swing between cycles, and less temperature difference between rooms. Its exclusive, intelligent microprocessor control adapts to the heating needs of the home by automatically adjusting high and low heat times to maximize comfort. The 58CTA furnace is approved for use with natural or propane gas. The 58CTX furnace is approved for use with natural or propane gas, and for use in Low NOx Air Quality Management Districts. The 58CTA/58CTX furnaces feature: 

  • ComfortHea Technology
    • Two-stage heating with single-stage thermostat
    • Very low operating sound through low-stage operation and QuieTech system
  • Microprocessor based “smart” control center:
    • Adapts heating stages to meet demand
    • Dehumidification selection for summertime cooling
    • Adjustable heating air temperature rise
    • Adjustable cooling airflow
    • ComfortFan – Constant fan speed selectable from thermostat
    • LED diagnostics and self-test feature
    • Stores fault codes during power outages
  • 4-way multipoise furnace, 13 vent applications
  • Shorter in height – only 33 1/3″ tall
  • Hot Surface Ignition (HSI)
  • Draft safeguard switch to ensure proper furnace venting
  • Insulated blower compartment
  • Heat pump compatible
  • All models are chimney-friendly when used with accessory vent kit


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