Ge nf98u070m3br Modulating Gas Furnace 66000 Btu/h

Product Description

The GENERAL ELECTRIC nf98u070m3br is a modulating, high-efficiency gas furnace rated at 98% AFUE with 66,000 BTU/h input and 64,000 BTU/h output. It uses a variable-speed ECM motor rated at 1/2 horsepower and delivers up to 1,200 CFM of airflow. The unit operates on 120 volts with a 15-amp fuse requirement. Designed for residential heating applications, this furnace is installed by licensed HVAC technicians in upflow or horizontal configurations. The B cabinet measures 33 inches tall, 17.5 inches wide, and 28.5 inches deep, making it suitable for closet, utility room, or attic installations where space is a constraint.

This furnace is built for upflow and horizontal airflow applications in residential settings. The modulating heat output allows the unit to ramp capacity up or down based on demand, reducing temperature swings and improving comfort. It is compatible with refrigerant types R410A and R454B, making it a viable pairing with modern split-system air conditioning equipment. The low-NOx emissions rating (under 40 ng/J) positions it for use in areas with strict air quality regulations. HVAC contractors installing new systems or replacing aging equipment will find this unit appropriate for single-family homes requiring a B-cabinet footprint.

Key Features

• 98% AFUE modulating operation reduces fuel consumption compared to single-stage furnaces
• Variable-speed ECM motor at 1/2 hp supports precise airflow control and quieter operation
• Upflow and horizontal airflow configurations expand installation flexibility
• Low-NOx emissions rated below 40 ng/J for use in regulated markets
• Compatible with R410A and R454B refrigerant systems for integrated HVAC applications
• Gray B cabinet at 33 x 17.5 x 28.5 inches fits standard residential furnace closets

Compatibility

Designed for upflow and horizontal residential gas furnace installations compatible with R410A and R454B split-system air conditioning equipment. Verify cabinet clearance requirements and gas line sizing before installation.

Installation Notes

Installation must be performed by a licensed HVAC technician in accordance with local mechanical codes and the manufacturer written instructions. Shut off gas supply and disconnect electrical power before beginning any service or installation work. The unit requires a 120-volt power supply and a properly sized gas line connection at 1/2 inch. Venting must comply with applicable fuel gas codes, including IFGC requirements for high-efficiency condensing appliance venting.

Technical Specifications

• Input Capacity: 66,000 BTU/h
• Output Capacity: 64,000 BTU/h
• AFUE: 98%
• Heating Stages: Modulating
• Airflow: Upflow / Horizontal
• Airflow Rate: 1,200 CFM
• Voltage: 120 volts
• Fuse Rating: 15 amps
• Motor Type: Variable Speed ECM
• Motor Size: 1/2 hp
• Gas Connection: 1/2 inch
• Refrigerant Compatibility: R410A / R454B
• Emissions Level: Low NOx, under 40 ng/J
• Height: 33 inches
• Width: 17.5 inches
• Depth: 28.5 inches
• Net Weight: 120 pounds
• Shipping Weight: 130 pounds
• Color: Gray
• Parts Warranty: Limited 5-year entire appliance; limited 10-year with registration; limited 20-year heat exchanger; limited lifetime heat exchanger with registration

Standard Information

• Brand: GENERAL ELECTRIC
• Manufacturer Part Number: nf98u070m3br