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

Goodman 80% 40K BTU Gas Furnace Ultra-Low NOx 14" Width Upflow/Horizontal GR9S800403AU

The Goodman GR9S800403AU Gas Furnace offers exceptional value with high-quality construction and efficient operation, making it the perfect choice for homeowners seeking reliable, cost-effective heating solutions. Featuring Goodman's superior heat exchanger design, this 9-speed, single-stage furnace provides efficient, consistent heat throughout your home. If you're looking to cut energy costs while improving indoor comfort, the GR9S800403AU is an ideal choice.

Product Features

• 40,000 BTU – Ideal for heating smaller homes, depending on climate conditions
• 80% Efficiency Rating – Uses 80% of the gas to heat your home, with only 20% lost through the flue venting
• Ultra Low-NOx Compliant – Meets California's stringent emission standards with a built-in low-emission filter
• Requires Metal Flue Venting – Standard for 80% efficient furnaces
• Versatile Installation – Can be installed in both upflow or horizontal (right or left) orientations
• Self-Diagnostic Control Board – Allows for easy troubleshooting and ensures long-lasting, reliable operation
• 9-Speed ECM Blower Motor – Offers efficient air circulation and enhanced electrical efficiency
• 10-Year Parts and Lifetime Heat Exchanger Warranty – Provides peace of mind with Goodman’s comprehensive warranty

Ultra-Low NOx Compliance

The Goodman GR9S800403AU Gas Furnace is compliant with California's strict Ultra-Low NOx emission regulations. This is crucial in counties such as Fresno, Los Angeles, San Bernardino, and others, where lower nitrogen oxide (NOx) emissions are required. The furnace is equipped with a special venting system and a low-emission filter that reduces nitrogen oxides, lowering the amount of toxic greenhouse gases released into the atmosphere, which is particularly beneficial for California residents.

Energy-Efficient Performance

With a 40,000 BTU input and an 80% Annual Fuel Utilization Efficiency (AFUE) rating, this Goodman furnace converts most of the gas into heat. The remaining 20% is lost through the metal flue venting. Ideal for small homes in moderate climates, this unit offers an efficient and affordable way to maintain comfort all winter long.

Single-Stage Furnace Design

The Goodman GR9S800403AU operates as a single-stage furnace, meaning it burns at 100% output whenever the thermostat calls for heat. Like flipping a light switch on and off, the furnace will either be fully on or off, providing simple and effective heating. While not as modulating as two-stage furnaces, this single-stage design is reliable and provides consistent heating.

Advanced 9-Speed ECM Blower Motor

Equipped with a 9-speed ECM blower motor, the GR9S800403AU ensures more efficient air circulation with less power consumption. This enhanced motor reduces electrical demand and provides smarter operation, resulting in lower energy costs while maintaining optimal heating performance.

Warranty and Reliability

The Goodman GR9S800403AU is backed by a 10-year parts warranty and a lifetime heat exchanger warranty with online registration. This extensive coverage ensures long-term reliability, giving you peace of mind and protection for your investment.

Self-Diagnostic Control Board

The furnace features a self-diagnostic control board that uses sensors to monitor system performance. In case of any issues, the control board can help identify basic problems, allowing for easy troubleshooting and notifying the homeowner if maintenance or warranty work is needed. This enhances the overall safety and reliability of the unit.

Ease of Installation

Designed with installation ease in mind, the Goodman GR9S800403AU furnace is versatile and can be installed in both upflow or horizontal configurations (right or left). This flexibility makes it ideal for various installation locations, such as attics or basements. The unit also comes with color-coded low-voltage terminals, simplifying the installation process and reducing both time and costs.