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    • Rheem R801T1255A24UHSNAS Endeavor Classic 125k BTU 80% AFUE Natural Gas Furnace

    Rheem R801T1255A24UHSNAS Endeavor Classic 125k BTU 80% AFUE Natural Gas Furnace

    Type: Gas
    Installed Price:Regular Price $7,069.70
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    Installation Pricing

    Every product you purchase from us includes the full cost of professional installation. Once your order is placed, our team will reach out to schedule the installation at a time that works best for you.

    We handle everything from removing the old equipment to installing and testing your new system, ensuring it’s set up safely and performing at its best.

    Your checkout covers the equipment and the labor—no surprise charges, no hidden fees. Installation is simply booked separately so we can coordinate the right technician and confirm any details about your home.

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      Pairs well with

      The Rheem R801T1255A24UHSNAS from the Endeavor Classic Series is a high‑capacity, standard‑efficiency natural gas furnace engineered for strong heating performance, smooth airflow, and long‑term reliability. Delivering 125,000 BTU of heating output with an 80% AFUE rating, this natural gas furnace is ideal for larger homes or light commercial applications requiring dependable, consistent heat. Its 1‑stage gas valve provides straightforward, reliable operation, while the ECM multi‑speed blower enhances airflow efficiency and pairs seamlessly with 5‑ton cooling systems. The larger upflow/horizontal D‑cabinet design supports high airflow demands and offers installation flexibility across basements, attics, closets, and mechanical rooms.

      Cabinet Dimensions
      Height: 34 in

      Width: 24.5 in

      Depth: 28.75 in

      Key Features
      125,000 BTU Heating Output – Powerful, reliable heat for large homes or demanding applications.

      80% AFUE Efficiency – Standard‑efficiency performance with a lower upfront cost.

      1‑Stage Gas Valve – Simple, dependable heating with consistent comfort.

      ECM Multi‑Speed Blower – Efficient airflow, quieter operation, and improved comfort.

      5‑Ton Airflow Capacity – Perfect match for 5‑ton AC or heat pump systems.

      Upflow/Horizontal “D” Cabinet – Largest cabinet footprint for high‑capacity airflow and installation flexibility.

      Sealed, Insulated Cabinet – Reduces heat loss and minimizes operating noise.

      Endeavor Classic Build Quality – Engineered for reliability, durability, and long service life.

      We service and install all types of HVAC heating and cooling equipment throughout Long Island, including (but not limited to) this coverage area:

      Nassau County: Oyster Bay, Hempstead, North Hempstead, Glen Cove, Long Beach, Freeport, Valley Stream, Garden City, Great Neck, Mineola, Hicksville, Levittown, Massapequa, Bethpage, Plainview, Syosset, Jericho, Westbury, Rockville Centre, Farmingdale

      Suffolk County: Huntington, Babylon, Islip, Smithtown, Brookhaven, Riverhead, Shelter Island, Southold, Southampton, East Hampton, Commack, Deer Park, Lindenhurst, Bay Shore, Brentwood, Central Islip, Hauppauge, Centereach, Selden, Medford, Patchogue, Shirley

      Contact us today at (631) 779-3196

      Product Specifications
      Specification Name Specification Value
      Cabinet Size D
      BTU Rating 125000
      Efficiency 80%
      Cooling Capacity 5T
      A2L
      Vent Type Upflow/Horizontal
      Vent Size 6.00 in
      Amperage 1.0
      Flue Location Upflow / Horizontal
      Phase Single phase
      Burner Type
      Blower Type Variable Speed
      Blower Output 1406
      Electrical Rating
      Refrigerant Type
      Configuration Upflow/Horizontal
      AFUE 80.0
      Voltage 115 V
      Stages 1 Stage
      Ignition System Direct Spark Ignition
      Fuel Type Natural Gas
      Height 34 in
      Width 24.5 in
      Depth 28.75 in
      Documents
      Specification Sheet Download
      Service & Support

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