Goodman - 100,000 BTU 80% Gas Furnace - 21" Width - Upflow / Horizontal - Two Stage - 115V - R32 - GR9T801005CN

Goodman - 100,000 BTU 80% Gas Furnace - 21" Width - Upflow / Horizontal - Two Stage - 115V - R32 - GR9T801005CN

The GR9T801005CN Goodman gas furnace features high-quality construction and efficient operation at a great value. The GR9T801005CN two-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 GR9T801005CN.

Features

• This furnace is ideal to heat a medium to large house (depending on climate)
• 100,000 BTU 80% efficient natural gas furnace
• Requires metal flue venting
• 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

• Powerful 100 k BTU Two‑Stage Heating: Designed for 100,000 BTU input with 80 % AFUE, this furnace delivers balanced warmth for medium‑to‑large homes with quieter, more consistent heat than single‑stage units.

• Two‑Stage Gas Valve for Comfort: The two‑stage design adjusts output based on heating demand, reducing temperature swings and noise during operation.

• Multi‑Speed ECM Blower: Nine‑speed ECM blower motor ensures smooth airflow, better comfort control, and improved energy use during heating cycles.

• Flexible Installation: Supports upflow or horizontal orientation, making it easier to fit in attics, basements, closets, or tight mechanical spaces.

• Durable, Insulated Cabinet: Heavy‑gauge steel cabinet with baked‑enamel finish and low leakage helps increase efficiency and reduce sound levels.

• Reliable Ignition & Diagnostics: SureStart® silicon nitride igniter and self‑diagnostic control board improve reliability and simplify service troubleshooting.

Q&A

Q: What is the heating capacity and efficiency?
A: The Goodman GR9T801005CN delivers 100,000 BTU input heat with 80% AFUE efficiency, providing reliable, cost‑effective warmth for medium to large homes.

Q: What type of gas valve does it use?
A: It features a two‑stage gas valve that improves temperature stability, reduces short cycling, and enhances occupant comfort.

Q: What blower motor and airflow does it include?
A: Equipped with a multi‑speed ECM blower motor for smooth airflow, quieter operation, and improved efficiency.

Q: What installation orientations are supported?
A: Designed for upflow or horizontal (left/right) installation, offering flexibility in basement, attic, or closet spaces.

Q: What electrical requirements does the furnace have?
A: Operates on 115 V single‑phase electrical service, making it compatible with standard residential circuits.

Q: What fuel type and conversion options are available?
A: Factory configured for natural gas, with optional conversion to LP (propane) using the proper kit.

Q: What venting type is required?
A: As an 80% AFUE model, it uses metal flue venting for safe exhaust of combustion gases.

Q: What durability and safety features are included?
A: Features a heavy‑duty aluminized steel heat exchanger, hot‑surface igniter, self‑diagnostic control board, and color‑coded low‑voltage terminals for reliable, long‑lasting performance.

Q: What are the physical dimensions?
A: Roughly 21″ width, with overall size suited to standard residential HVAC equipment spaces

Maintenance Tips

• Replace or clean air filters every 1–3 months to maintain airflow and prevent dust buildup on the heat exchanger and blower.

• Inspect the heat exchanger annually for cracks or corrosion to ensure safe and efficient operation.

• Clean burners, pilot assembly, and ignition system to maintain reliable two-stage combustion.

• Check the blower motor and fan assembly for dust, debris, and lubrication needs.

• Inspect venting and flue pipe for obstructions or leaks to ensure safe exhaust of combustion gases.

• Test gas valves, two-stage operation, and thermostat for accurate temperature control and efficient heating.

• Verify 115V electrical connections and check wiring for wear or corrosion.

• Keep surrounding area clear to maintain airflow and reduce fire hazards.

• Schedule annual professional HVAC service for inspection, cleaning, and safety checks.

• Register your furnace to activate warranty coverage and maintain service records.