Armstrong 80% Single Stage Downflow

  • 80% AFUE Efficiency Rating

    Compared to an older furnace, this can potentially save you hundreds of dollars per year in energy costs.

  • Quiet Combustion™ Technology

    Uses a smaller Btu input per burner for quieter start-up and operation while providing more even heat distribution.

  • EHX™ Technology

    Every Armstrong Air furnace is engineered and built with EHX Technology, a patented design that eliminates the hot spots that can shorten furnace life. EHX Technology makes heat exchangers more durable, and with its advanced airflow system, more air contacts the heat exchanger surface area for greater heat exchange, enhancing efficiency and comfort.


SKU Description Prod Info Price/Units Quantity
A80DF1D045A12 45 MBH 80% DOWNFLOW ONLY EA
A80DF1D070A12 70 MBH 80% DOWNFLOW ONLY EA
A80DF1D090B16 90 MBH 80% DOWNFLOW ONLY Product_Details EA
A80DF1D110C20 110 MBH 80% DOWNFLOW ONLY Product_Details EA