Goodman - 40,000 BTU 96% Gas Furnace - 14" Width - Upflow / Horizontal - Single Stage - 115V - R32 - GR9S960403BU

Goodman - 40,000 BTU 96% Gas Furnace - 14" Width - Upflow / Horizontal - Single Stage - 115V - R32 - GR9S960403BU

The GR9S960403BU Goodman gas furnace features high-quality construction and efficient operation at a great value. The GR9S960403BU single-stage, 9-speed furnace utilizes Goodman's superior heat exchanger design to provide efficient, reliable heating to your home. If you're looking to cut your energy bills and improve your comfort without breaking the bank, your search stops with the Goodman GR9S960403BU.

Features

• This furnace is ideal to heat a smaller house (depending on climate)
• 40,000 BTU 96% efficient natural gas furnace
• Requires plastic/PVC flue venting
• Complies with Clean Air Act New Refrigerant Requirements
• Can be used in the upflow or horizontal orientation
• Can be converted to an LP furnace with a conversion kit (sold separately)
• Innovative design for electrical efficiency, safety, and lower sound output
  

Specifications

Manual

• Installation Manual
• Specifications Sheet
  

What our Experts Think

• High‑Efficiency 96% AFUE
  With a 96% Annual Fuel Utilization Efficiency, this furnace converts nearly all fuel into usable heat — lowering energy costs and boosting comfort compared with older, low‑efficiency models.

• Reliable Single‑Stage Heating
  The single‑stage gas valve delivers consistent warmth, making it a dependable choice for everyday heating without complexity.

• 40,000 BTU Output for Small‑Mid Homes
  Designed with 40,000 BTU capacity, this unit is ideal for smaller to medium‑sized homes or zones, delivering balanced warmth without oversizing.

• Slim 14" Width Cabinet
  The compact 14‑inch design fits easily into tight mechanical spaces, closets, or utility areas — perfect where space is limited.

• Upflow / Horizontal Installation Flexibility
  Compatible with both upflow and horizontal duct configurations, giving installers versatile placement options for varied layouts.

• Multi‑Speed ECM Blower Motor
  The ECM blower improves airflow efficiency and quiet performance, enhancing overall comfort and system responsiveness.

• R‑32 Refrigerant Compatibility
  Built to integrate with modern R‑32 HVAC systems, aligning with current efficiency and environmental standards.

• Easy Service Diagnostics
  LED diagnostic controls help service technicians quickly identify issues, reducing repair time.

Q&A

Q: What size space is this furnace suitable for?
A: With 40,000 BTU and 96% AFUE, this furnace is ideal for small to medium‑sized homes or zones depending on insulation and climate.

Q: How energy efficient is this model?
A: It features a 96% AFUE efficiency rating, meaning nearly all fuel is converted to heat — delivering lower energy costs and more efficient performance.

Q: What installation orientations are supported?
A: Supports both Upflow and Horizontal configurations for flexible placement in basements, attics, crawl spaces, or closets.

Q: What does “single stage” mean?
A: A single‑stage gas valve runs at full output whenever heat is needed, providing simple, reliable operation.

Q: What electrical requirements does it have?
A: Operates on 115 V single‑phase power, standard for residential furnace installs.

Q: What refrigerant compatibility does it have?
A: Designed to work with systems using R‑32 refrigerant.

Q: What are the benefits of this furnace?
A: Offers high efficiency, dependable heat delivery, easy maintenance, and quiet operation.

Q: What kind of blower motor does it include?
A: Features a multi‑speed blower motor for consistent airflow and improved comfort.

Q: Is this model good for tight installation spaces?
A: Yes — its compact 14″ width and flexible upflow/horizontal design fit many standard furnace cavities.

Maintenance Tips

• Replace air filters every 1–3 months to maintain airflow and efficiency.

• Keep supply and return vents clear for consistent heating.

• Maintain 2–3 feet of clearance around the furnace to ensure safe operation.

• Inspect the condensate drain line regularly to prevent clogs.

• Check thermostat settings and operation for proper temperature control.

• Examine vent pipes and connections for blockages or leaks.

• Listen for unusual noises such as rattling or humming, which may indicate issues.

• Clean blower compartment and internal surfaces to reduce dust buildup.

• Test carbon monoxide detectors to ensure safe operation.