General Electric NF80U045T3A 3-Ton 45K BTU Natural Gas Furnace

A dependable, standard‑efficiency natural gas furnace designed for quiet performance, smooth airflow, and long‑term reliability. The General Electric NF80U045T3A delivers 45,000 BTU of heating output with an 80% AFUE rating, making it a strong choice for smaller homes, condos, and well‑insulated spaces. Its 2‑stage gas valve provides more consistent comfort and quieter operation compared to single‑stage natural gas furnace models, while the constant‑torque ECM blower improves airflow efficiency and pairs seamlessly with 3‑ton cooling systems. The compact upflow/horizontal A‑cabinet design fits tight mechanical spaces and offers flexible installation options.

Cabinet Dimensions
Height: 34 in

Width: 14 in

Depth: 28.75 in

Key Features
45,000 BTU Heating Output – Ideal for smaller homes or energy‑efficient construction.

80% AFUE Efficiency – Reliable standard‑efficiency performance with lower upfront cost.

2‑Stage Gas Valve – Smoother temperature control and quieter operation than single‑stage furnaces.

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

3‑Ton Airflow Capacity – Perfectly matched for 3‑ton AC or heat pump systems.

Upflow/Horizontal “A” Cabinet – Compact footprint ideal for basements, closets, attics, and tight installations.

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