General Electric NF80U070S3B 3-Ton 70K BTU Natural Gas Furnace

A dependable, standard‑efficiency natural gas furnace built for smooth airflow, quiet performance, and long‑term reliability. The General Electric NF80U070S3B delivers 70,000 BTU of heating output with an 80% AFUE rating, making this natural gas furnace a strong choice for smaller to mid‑sized homes seeking reliable comfort at an affordable cost. Its 1‑stage gas valve provides straightforward, consistent heating, while the constant‑torque ECM blower improves airflow efficiency and pairs seamlessly with 3‑ton cooling systems. The wider upflow/horizontal B‑cabinet design offers added installation flexibility and a slightly larger footprint than the A‑cabinet, making it ideal for a variety of mechanical spaces.

Cabinet Dimensions

• Height: 34 in

• Width: 17.5 in

• Depth: 28.75 in

Key Features

• 70,000 BTU Heating Output – Reliable heat for smaller and mid‑sized homes.

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

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

• Constant‑Torque ECM Blower – Efficient, steady airflow with reduced energy consumption.

• 3‑Ton Airflow Capacity – Ideal match for 3‑ton AC or heat pump systems.

• Upflow/Horizontal “B” Cabinet – Wider footprint for flexible installation in basements, closets, attics, and mechanical rooms.

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

• GE Build Quality – Engineered for durability, reliability, 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