General Electric nf80d090s4b Gas Furnace 90K Btu 80% Afue

Product Description

The GENERAL ELECTRIC nf80d090s4b is a single-stage downflow gas furnace rated at 90,000 BTU/h output and 80% AFUE efficiency. It features a constant torque motor for consistent airflow performance and uses Insta-Position Technology for flexible installation orientation. Pre-formed flanges and crimped heat exchangers simplify field setup and reduce potential leak points. This furnace is designed for residential forced-air heating systems and is installed by licensed HVAC technicians. At 135 pounds net weight, it fits standard residential utility and basement installations where a downflow configuration is required.

This unit is configured for downflow airflow, making it appropriate for installations where supply air is directed downward into floor-level duct systems. It is rated at 4 tons of airflow capacity and is suited for residential applications requiring a straightforward, single-stage heating solution. The gray cabinet finish is standard for utility-area installations. HVAC contractors installing new systems or replacing existing downflow furnaces will find this unit compatible with conventional duct configurations that call for a downflow discharge arrangement.

Key Features

• 90,000 BTU/h heating output with 80% AFUE efficiency rating
• Single-stage heating operation for straightforward system control
• Constant torque motor for stable, consistent airflow delivery
• Insta-Position Technology supports flexible installation positioning
• Crimped heat exchangers reduce weld-point failure risk
• Pre-formed flanges simplify duct connection during installation

Compatibility

Designed as an OEM-style downflow gas furnace for residential forced-air heating systems requiring a 90,000 BTU/h single-stage unit with 80% AFUE and 4-ton airflow capacity.

Installation Notes

Installation must be performed by a licensed HVAC technician in accordance with local codes and the manufacturer written instructions. Shut off gas supply and disconnect electrical power before beginning any service or installation work. Follow IFGC requirements for gas line connections, venting, and combustion air provisions. Confirm duct system is sized and configured for downflow discharge before connecting supply plenum.

Technical Specifications

• Product Type: Gas Furnace
• BTU/h Output: 90,000 BTU/h
• AFUE: 80%
• Heating Stages: Single-Stage
• Airflow Direction: Downflow
• Tonnage: 4 Ton
• Motor Type: Constant Torque
• Emissions Level: Standard
• Color: Gray
• Net Weight: 135 pounds
• Approximate Shipping Weight: 145 pounds
• Overall Height: 33 inches
• Overall Width: 17.5 inches
• Overall Depth: 28.5 inches
• Parts Warranty: Limited 5-year entire appliance; Limited 10-year entire appliance with registration; Limited 20-year heat exchanger; Limited lifetime heat exchanger with registration
• Labor Warranty: No Warranty

Standard Information

• Brand: GENERAL ELECTRIC
• Manufacturer Part Number: nf80d090s4b