The GR9S800803BN Goodman gas furnace features high-quality construction and efficient operation at a great value. The GR9S800803BN 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 GR9S800803BN.
Features
This furnace is ideal to heat a medium-sized house (depending on climate)
80,000 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
Goodman 80% 80,000 BTU Single Stage Gas Furnace - 17.5" Width - Upflow / Horizontal
Balanced, Cost‑Effective Heat Delivery The Goodman GR9S800803BN single‑stage gas furnace delivers 80,000 BTU input with 80 % AFUE, meaning roughly 80 % of fuel energy becomes usable warmth—offering dependable, budget‑friendly heating for medium‑sized homes or moderate climates.
Modern Multi‑Speed ECM Blower for Efficient Airflow Equipped with a 9‑speed ECM blower motor, this furnace optimizes airflow and electrical use compared with traditional PSC motors, enhancing comfort circulation while keeping power use down.
Reliable Ignition & Control Features Features like a durable hot surface ignitor and self‑diagnostic control board improve reliability, simplify troubleshooting, and support smoother operation season after season.
Versatile Installation Options Its upflow/horizontal configuration and 17.5″ width fit a wide range of layouts (attics, basements, closets), making it flexible for retrofit or new installations.
Durable Heat Exchanger & Cabinet Construction A heavy‑duty aluminized‑steel tubular heat exchanger and insulated heavy‑gauge steel cabinet help ensure long service life and reduce noise and heat loss.
Q&A
Q1: What heating capacity does this furnace provide? A: The Goodman GR9S800803BN delivers 80,000 BTU input (~64,000 BTU output) with an 80% AFUE efficiency, making it suitable for medium‑sized residential heating applications.
Q2: What type of heating stages and operation does it have? A: It’s a single‑stage gas furnace, providing consistent heat output whenever there’s a call for heating.
Q3: What blower motor does this furnace use? A: It features a 9‑speed ECM blower motor, which improves airflow control and enhances comfort and energy use compared with standard single‑speed motors.
Q4: Which refrigerant and environmental standards does it support? A: This furnace is designed to be compatible with R‑32 refrigerant systems, aligning with modern HVAC refrigerant standards.
Q5: What installation configurations are possible? A: It supports upflow and horizontal installations, allowing flexible placement in attics, basements, closets, or crawl spaces.
Q6: What are the physical and electrical specs? A: The unit has a 17.5″ cabinet width, 33 3/8″ height, 28″ depth, weighs ~116 lb, and runs on 115 V single‑phase power.
Q7: What kind of fuel does it use? A: It runs on natural gas and can be converted to propane (LP) with an optional kit.
Maintenance Tips
Replace Air Filters Every 1–3 Months – Clean filters maintain proper airflow, protect the blower, and prevent heat exchanger strain.
Inspect Burners & Heat Exchanger Annually – Check for soot, cracks, or corrosion to ensure safe combustion and maintain 80% AFUE efficiency. (hvacdirect.com)
Clean Condensate Drain & Pan – Keep the condensate system clear to prevent water buildup and microbial growth.
Check Electrical Components & Thermostat – Inspect wiring, limit switches, and single-stage thermostat operation to ensure reliable heating performance.
Maintain Proper Airflow – Keep supply and return vents clear; unobstructed airflow prevents overheating and maintains efficiency.
Schedule Annual Professional Furnace Service – Certified technicians should inspect the R32-compatible system, clean internal components, and verify safe, efficient operation.
Choosing a selection results in a full page refresh.
Damage 
Loss 
Theft 
