The GR9S920804CN Goodman gas furnace features high-quality construction and efficient operation at a great value. The GR9S920804CN 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 GR9S920804CN.
Features
This furnace is ideal to heat a medium house (depending on climate)
80,000 BTU 92% 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
Goodman 92% 80,000 BTU Single Stage Gas Furnace - 21" Width - Upflow / Horizontal
Energy‑Smart Heating Performance The Goodman GR9S920804CN is a 92 % AFUE, 80,000 BTU single‑stage gas furnace built to convert most of your fuel into usable heat—helping cut energy waste while delivering steady warmth for medium‑sized homes.
Flexible Installation Options Its upflow and horizontal orientation makes this furnace versatile for installations in attics, closets, utility rooms, or crawl spaces without changing cabinet direction.
Responsive Multi‑Speed ECM Blower The 9‑speed ECM blower motor improves airflow control, providing quieter operation and better comfort throughout the heating season while also optimizing energy use.
Robust Heat Exchanger & Ignition System Featuring a heavy‑duty aluminized primary heat exchanger, stainless secondary heat exchanger, and silicon nitride igniter, this unit is designed for durable performance and long service life.
Installer‑Friendly Design Easy top or side venting options with PVC/plastic vent compatibility and flexible gas/electrical connections reduce installation time and complexity for HVAC professionals.
Quiet, Self‑Diagnostic Operation Built‑in self‑diagnostic control board helps technicians quickly troubleshoot issues, and the furnace runs smoothly and quietly in everyday use.
Q&A
Q1: What size and heating capacity does this furnace offer? A: The Goodman GR9S920804CN delivers 80,000 BTU heating capacity, making it ideal for medium‑sized residential homes needing balanced heating performance.
Q2: How efficient is this furnace? A: It achieves up to 92% AFUE, meaning 92% of gas fuel is converted into heat, improving energy efficiency and reducing fuel costs.
Q3: What installation orientations are supported? A: This model supports upflow and horizontal installations, offering flexibility for attics, basements, closets, or crawl spaces.
Q4: What type of blower motor does it use? A: It features a multi‑speed ECM (9‑speed) blower motor for smoother airflow, quieter operation, and improved comfort control.
Q5: What fuel types and venting are supported? A: It runs on natural gas and can be converted to propane with a kit, and uses PVC/plastic direct venting suited for high‑efficiency systems.
Q6: What are the key build features? A: Includes a heavy‑gauge steel cabinet, aluminized steel heat exchanger, stainless secondary heat exchanger, silicon nitride igniter, and self‑diagnostic control board for reliability and easy troubleshooting.
Q7: What are the electrical specs? A: The furnace runs on 115 V, single‑phase, 60 Hz power and typically requires a 13.7–20 A circuit breaker for standard installations.
Maintenance Tips
Replace Air Filters Every 1–3 Months – Clean filters maintain proper airflow, protect the blower, and prevent coil or heat exchanger strain.
Inspect Burners & Heat Exchanger Annually – Check for soot, cracks, or corrosion to ensure safe combustion and maintain 92% AFUE efficiency. (hvacdirect.com)
Clean Condensate Drain & Pan – For high-efficiency models, keep the condensate system clear to prevent water buildup and microbial growth.
Check Electrical Components & Thermostat – Inspect wiring, limit switches, and thermostat operation to ensure reliable, single-stage heating performance.
Maintain Proper Airflow – Keep supply and return vents clear; unrestricted airflow prevents overheating and maintains efficiency.
Schedule Annual Professional Furnace Service – Technicians should inspect the R32-compatible system, clean internal components, verify combustion safety, and maintain peak heating performance.
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