Goodman GR9S80-U Review

Limited inventory: Please note, this model has been marked as having limited inventory by the manufacturer, although it may still be available for purchase through distributors and contractors for some time.

Goodman Brand Overall Rating & Average Price

The Goodman GR9S80-U is a single-stage gas furnace that offers cost-effective, durable, and quiet heating for homeowners seeking a reliable and efficient heating solution. With an 80% AFUE rating, this furnace is best suited for regions with moderate winter conditions.

This review covers the features, performance, and benefits of the Goodman GR9S80-U to help you determine if it’s the right choice for your home.

Goodman GR9S80-U Overview

AFUE Rating: 80%
Burner Type: Single-stage
Blower Type: Modulating draft inducer
Heat Exchanger: Stainless-steel dual-diameter tubular
Heating Capacity: 40,000 - 67,000 BTUs
ENERGY STAR Certified: No

Key Features

• Heavy-duty stainless-steel heat exchanger for durability and long-lasting performance
• Single-stage gas valve for consistent heating
• Durable hot-surface igniter for reliable ignition
• Quiet, modulating draft inducer to minimize operational noise
• Self-diagnostic control board for troubleshooting and maintenance

Performance and Efficiency

The 80% AFUE rating means that 80% of the fuel is converted into usable heat, making this furnace a practical option for homeowners looking for reliable heating at a lower upfront cost.

Unlike two-stage or variable-speed models, the single-stage gas valve runs at full capacity when heating, which can lead to higher energy consumption but ensures consistent warmth. The modulating draft inducer helps regulate airflow, improving efficiency and reducing noise.

The stainless-steel heat exchanger enhances durability and heat transfer, making the GR9S80-U a long-lasting and efficient choice.

Benefits of the Goodman GR9S80-U

✔ High reliability and durability – Stainless-steel heat exchanger resists corrosion and increases lifespan
✔ Consistent heating performance – Single-stage operation ensures steady warmth
✔ Quiet operation – Modulating draft inducer minimizes noise while optimizing airflow
✔ Durable hot-surface igniter – Offers long-lasting and reliable ignition
✔ Self-diagnostic control board – Simplifies troubleshooting and maintenance
✔ Compatible with electronic air cleaners (EAC) and humidifiers – Enhances indoor air quality
✔ Energy-efficient circulation – Designed to improve heat transfer while keeping operating costs manageable

Warranty and Coverage

Goodman provides strong warranty protection for the GR9S80-U, ensuring peace of mind and long-term reliability. The warranty includes:

• 10-year limited parts warranty
• Lifetime heat exchanger warranty

To maintain warranty coverage, the unit must be installed by a certified HVAC professional, and homeowners should register the unit within 60 days of installation.

Final Thoughts

The Goodman GR9S80-U is a dependable and cost-effective gas furnace that offers steady heating, quiet operation, and long-term durability. While it may not have the advanced efficiency of two-stage or variable-speed models, it is a great option for homeowners looking for reliable heating on a budget.

With stainless-steel construction, a hot-surface igniter, and a self-diagnostic system, the GR9S80-U delivers consistent performance and long-lasting comfort. If you need affordable, quiet, and efficient heating, the Goodman GR9S80-U is a solid choice.