Goodman - 80,000 BTU 96% Gas Furnace - 21" Width - Upflow / Horizontal - Two Stage - 115V - R32 - GR9T960804CN

Goodman - 80,000 BTU 96% Gas Furnace - 21" Width - Upflow / Horizontal - Two Stage - 115V - R32 - GR9T960804CN

As a high-efficiency system, the GR9T960804CN Goodman gas furnace features many money saving features. The two-stage, 9-speed furnace uses a superior heat exchanger for better heat transfers to your home. Considered one of the best efficiencies on the market, the GR9T960804CN is a good way to go if you want to lower your gas bill.

Features

• This furnace is ideal to heat a medium-sized house (depending on climate)
• 80,000 BTU 96% AFUE 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 an optional 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 Heating That Saves Energy
  The Goodman GR9T960804CN 80,000 BTU Two‑Stage Gas Furnace delivers 96 % AFUE, meaning nearly all fuel becomes usable heat—helping reduce gas bills and energy waste compared with lower‑efficiency models.

• Comfort‑Focused Two‑Stage Operation
  A two‑stage gas valve operates at a lower heating output in mild weather and ramps up to full capacity when needed, resulting in smoother temperature control, quieter starts, and fewer cycling losses.

• Smart, Efficient Airflow Control
  The 9‑speed ECM blower motor delivers quieter, more efficient air distribution than standard PSC motors, improving comfort and lowering electricity use while maintaining steady airflow.

• Durable Build for Long‑Term Operation
  Features like a heavy‑gauge insulated steel cabinet, aluminized and stainless secondary heat exchangers, and silicon nitride igniter enhance reliability and corrosion resistance—supporting lasting performance.

• Flexible Installation & Venting
  Designed for upflow or horizontal configurations, it fits a wide range of attic, closet, or basement layouts and uses plastic/PVC flue venting required by high‑efficiency condensing furnaces.

• Ready for R‑32 HVAC Systems
  Built to comply with modern refrigerant standards, this furnace integrates easily with R‑32 cooling systems and meets Clean Air Act refrigerant requirements.

Q&A

Q1: What heating capacity and efficiency does this furnace provide?
A: The Goodman GR9T960804CN delivers 80,000 BTU input (~76,800 BTU output) with a 96% AFUE rating, meaning nearly all fuel heat is used to warm your home, reducing energy waste and lowering utility costs.

Q2: What type of heating stages and operation does it have?
A: It features a two‑stage gas valve with a 9‑speed ECM blower motor, enabling quieter operation, better temperature control, and improved comfort across varying weather conditions.

Q3: What installation orientations are supported?
A: This furnace supports upflow and horizontal installations, offering flexible placement in attics, crawl spaces, or closets.

Q4: What fuel and venting requirements apply?
A: It runs on natural gas (convertible to propane with an optional kit) and requires plastic/PVC flue venting typical of high‑efficiency condensing furnaces.

Q5: What blower and airflow features are included?
A: The 9‑speed multi‑speed ECM blower delivers smoother airflow, quieter performance, and enhanced comfort compared to standard single‑speed motors.

Q6: What construction and control features does it have?
A: It includes a heavy‑gauge insulated steel cabinet, aluminized steel heat exchanger, hot surface igniter, and a self‑diagnostic control board that simplifies troubleshooting and improves reliability. 

Q8: What electrical and sizing specs are typical?
A: The furnace operates on 115 V single‑phase power, with recommended breaker sizing between 11.4–20 A and maximum airflow around 1,600 CFM.

Maintenance Tips

• Replace Air Filters Every 1–3 Months – Check and replace the filter frequently (e.g., monthly during peak use) to maintain airflow, protect the blower and heat exchanger, and preserve efficiency. Dirty filters restrict airflow and reduce performance.

• Annual Professional Inspection – Have a licensed HVAC technician inspect and service the furnace yearly (before the heating season). Key checks include burners, heat exchanger, ignition system, gas pressure, and safety controls.

• Inspect & Clean Around the Furnace – Keep the area clear of dust, debris, and flammable materials. Vacuum loose dust near vents and blowers to support consistent airflow.

• Check Thermostat & Operation Weekly – Verify thermostat accuracy, change batteries yearly, and listen for unusual sounds or short‑cycling, which can signal airflow or ignition issues.

• Inspect Venting & Condensate – Ensure PVC/plastic vent pipes and condensate drain lines are free of blockages and winter ice to prevent combustion drainage issues (high‑efficiency furnaces produce condensate).

• Monitor Safety Devices – Test carbon monoxide (CO) detectors regularly and schedule combustion analysis during annual service to catch potential hazards early.

• Document Maintenance – Keep a log of filter changes, inspections, and professional tune‑ups to support warranty requirements and track performance over time.