Day and Night Gas Furnaces

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Constant Comfort™ Deluxe Series

  • Our highest efficiency, top-of-the-line gas furnace series delivers superior home comfort
  • Energy-saving modulating and two-stage operation options for more even temperature control and quiet operation
  • Combine compatible gas furnaces with the Observer® communicating wall control and communicating indoor unit for the ultimate in home comfort

Constant Comfort™ Series

  • Durable gas furnaces that maintain home comfort and efficiency
  • Competitive heating efficiency ratings up to 96% AFUE
  • Dual fuel capabilities with compatible heat pump and thermostat

Performance Series

  • Budget-friendly and efficient gas furnaces for even levels of home comfort
  • Single-stage operation with quiet, reliable performance