Preferred™ 80 Series Variable-Speed Gas Furnace 820TA


There’s a reason people love our Preferred™ Series gas furnaces. Several reasons, actually – they’re energy efficient, quiet and ultra-reliable. The Model 820(1)TA uses variable speed technology to achieve extra-consistent comfort during the colder months and squeeze humidity out of the air during the hotter ones.

AFUE Efficiency: 80%
Gas Valve Type: Two-Stage
  • Quiet performance and even-temperature comfort from variable-speed air delivery
  • Two-stage operation allows longer
  • more even heating cycles on low stage
  • Perfect Heat® technology means consistent comfort by adjusting system operation to changing conditions
  • Fan On Plus™ technology lets you choose the speed of continuous fan operation with a compatible control
  • Insulated cabinet for quieter operation
  • Low NOx models available (821TA)
  • 20-year limited warranty on heat exchanger3
  • 10-year parts limited warranty upon registration upon timely registration2