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

Efficient Two‑Stage Heating with the Goodman GR9T800803BX Gas Furnace

The Goodman GR9T800803BX is an 80,000 BTU, 80% AFUE two-stage gas furnace engineered to provide quiet, comfortable, and energy-efficient heating for mid-sized to larger homes. Its compact 17.5″ width enables versatile placement, while advanced features improve performance and reliability.

Key Features:

Two‑stage gas valve operates in low stage most of the time for balanced heating, switching to high only when needed

9-speed ECM blower motor adjusts airflow for optimal comfort, improved efficiency, and quieter operation

Aluminized steel tubular heat exchanger ensures long-lasting durability and efficient heat transfer

Fully insulated steel cabinet reduces noise and limits air leakage to under 2%

Self-diagnostic control board monitors system health and displays fault codes for simplified service

Supports both upflow and horizontal airflow configurations for flexible installation

Sturdy baked-enamel steel cabinet resists corrosion and ensures longevity

Specifications:

Heating capacity: 80,000 BTU/h

AFUE: 80%

Fuel type: Natural Gas (LP convertible)

Blower motor: 9-speed ECM

Airflow options: Upflow, Horizontal left/right

Cabinet width: 17.5 inches

Dimensions (W × D × H): 17.5 × 28 × 33.38 inches

Voltage: 115 V, Single-phase

Min circuit ampacity: 9.8 A

Max fuse/breaker: 15 A

Approximate weight: 118 lbs

Warranty:

Lifetime limited heat exchanger warranty

10‑year limited parts warranty (online registration encouraged)

The Goodman GR9T800803BX delivers powerful dual-stage heating in a compact, energy-efficient design—ideal for homeowners seeking reliable comfort and flexibility.