Goodman 40,000 BTU 96% AFUE Two-Stage Gas Furnace Downflow/Horizontal 17.5" Cabinet R-32

The Goodman GD9T960403BN brings smart two-stage heating to downflow installations. Designed for closets, alcoves, and attics, this furnace runs at a lower 60% output on mild days for quieter, more efficient operation — then ramps up to full power when temperatures really drop. Perfect for smaller homes that want premium comfort and efficiency from a downflow setup.

Key Features:

• 96% AFUE — converts 96 cents of every dollar of gas into usable heat
• 40,000 BTU input — ideal for smaller homes
• Two-stage gas valve — runs at 60% on mild days, 100% on cold days for better comfort and efficiency
• Downflow / horizontal installation — ideal for closets, alcoves, and attics
• 9-speed ECM blower motor for quiet, precise airflow
• Heavy-duty aluminized-steel tubular heat exchanger
• Stainless steel secondary heat exchanger
• Self-diagnosing control board for easy troubleshooting
• LP convertible with optional conversion kit
• Low NOx emissions — meets nationwide installation requirements
• R-32 compatible
• AHRI Certified and ETL Listed

Specs:

• BTU Input: 40,000
• AFUE: 96%
• Cabinet Width: 17.5"
• Stages: Two
• Blower Motor: 9-Speed ECM
• Fuel Type: Natural Gas (LP convertible)
• Installation: Downflow / Horizontal
• Venting: PVC/Plastic
• Voltage: 115V

Compatibility: Compatible with 1-2 ton R-32 cooling systems.

Warranty: 10-year limited parts warranty + lifetime heat exchanger warranty when registered within 60 days of installation.