Goodman 80% AFUE Gas Furnace Multi Speed ECM, Two Stage, Upflow/Horizontal, 80000 BTUH

Efficient Two-Stage Heating for Larger Homes — Goodman GR9T800804BX Gas Furnace

The Goodman GR9T800804BX is an 80,000 BTU, 80% AFUE two-stage gas furnace designed to provide reliable and consistent heating for mid- to large-sized homes. With a 21-inch cabinet and a high-performance blower system, this unit is built for comfort, efficiency, and quiet operation.

Key Features:

Two-stage gas valve maintains low-stage operation for everyday comfort and energy savings, activating high-stage only during peak demand

9-speed ECM blower motor automatically adjusts airflow for optimal temperature balance and quieter performance

Aluminized steel tubular heat exchanger offers durable, efficient heat transfer

Fully insulated cabinet design reduces noise and prevents air leakage for higher system efficiency

Self-diagnostic control board tracks performance and provides service-friendly fault codes

Flexible installation with support for upflow or horizontal airflow configurations

21-inch cabinet width allows for improved airflow capacity and compatibility with larger duct systems

Specifications:

Heating capacity 80,000 BTU/h

AFUE 80%

Fuel type Natural Gas (convertible to LP with optional kit)

Blower motor 9-speed ECM

Airflow configuration Upflow or horizontal

Cabinet width 21 inches

Dimensions (W x D x H) 21 x 28 x 33.38 inches

Voltage 115 V, 1 Phase, 60 Hz

Minimum circuit ampacity 9.8 A

Maximum overcurrent protection 15 A

Approximate weight 120 lbs

Warranty:

Lifetime limited warranty on the heat exchanger

10-year limited parts warranty with online registration

The Goodman GR9T800804BX is a dependable, high-efficiency furnace that offers quiet comfort, robust performance, and flexibility—perfect for larger homes with greater airflow requirements.