Goodman 80% AFUE 40K BTU Furnace 9-Speed Low NOx 14"W Single Stage Upflow/Horizontal

Goodman 80% AFUE 40K BTU Gas Furnace 14" Wide R32 Low NOx Upflow/Horizontal GR9S800403AX

The Goodman GR9S800403AX Low NOx gas furnace is designed for reliable heating, energy efficiency, and compliance with California Low NOx standards. With a 40,000 BTU capacity, this furnace is ideal for smaller homes, offering dependable comfort while helping reduce emissions and energy costs. Featuring a single-stage burner and a 9-speed ECM blower motor, it provides consistent heating performance and efficient airflow.

Key Features

• Heating: 80% AFUE gas furnace provides efficient whole-home heating
• Refrigerant: Factory-charged with R32 refrigerant for reliable, eco-conscious operation
• Certifications: AHRI Certified and ETL Listed for verified safety and performance standards
• Installation: Designed for easy installation as a matched system with compatible Goodman components

40,000 BTU Heating Power

With a heating input of 40,000 BTUs and 32,000 BTUs of output, the GR9S800403AX is perfectly suited for smaller homes in average climates, delivering consistent comfort and energy savings.

80% AFUE Efficiency

Operating at 80% AFUE, this furnace converts the majority of fuel into usable heat, venting through standard metal flue venting. It’s a cost-effective solution for homes that don’t require a high-efficiency condensing system.

Low NOx Compliance

The GR9S800403AX meets California Low NOx emission requirements, lowering environmental impact. It cannot, however, be installed in Ultra-Low NOx counties such as Los Angeles, Orange, Riverside, and San Bernardino.

Durable Construction

This model features a heavy-duty aluminized steel heat exchanger, rugged cabinet, and hot surface ignitor for reliable and long-lasting operation with reduced maintenance needs.

Warranty Protection

Goodman provides a 10-year parts warranty and a lifetime heat exchanger warranty when registered online and installed according to local codes.

Installation and Maintenance

Supports both upflow and horizontal configurations for flexibility. Color-coded low-voltage terminals simplify installation, and the self-diagnostic control board ensures fast servicing and troubleshooting.