Goodman - 80,000 BTU 96% Gas Furnace - 21" Width - Downflow / Horizontal - Single Stage - 115V - R32 - GD9S960804CN

Goodman - 80,000 BTU 96% Gas Furnace - 21" Width - Downflow / Horizontal - Single Stage - 115V - R32 - GD9S960804CN

If you're looking to reduce your energy bill and improve the comfort of your home, look no further than Goodman's GD9S960804CN. This gas furnace features efficient operation and high-quality construction to provide your home with reliable, affordable heating. The GD9S960804CN single-stage, 9-speed furnace is a great value designed for many applications.

Features

• This furnace is ideal to heat a medium house (depending on climate)
• 80,000 BTU 96% efficient natural gas furnace
• Requires plastic/pvc flue venting
• Complies with Clean Air Act New Refrigerant Requirements
• Can be used in the downflow 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 Heating That Pays Off
  The Goodman GD9S960804CN 80,000 BTU Gas Furnace delivers a 96 % AFUE, converting nearly all fuel into usable heat and helping reduce heating costs compared with lower‑efficiency models.

• Reliable Single‑Stage Heat Delivery
  Its single‑stage gas valve provides consistent, dependable warmth whenever heat is needed, making it a solid choice for straightforward home heating without complex modulation.

• Quiet, Efficient Airflow
  The multi‑speed ECM blower motor promotes smoother airflow, quieter operation, and improved comfort distribution compared with standard PSC motors.

• Durable & Long‑Lasting Construction
  Heavy‑duty aluminized and stainless‑steel heat exchangers plus a durable silicon nitride igniter support reliable performance and extended furnace life, even under frequent use.

• Flexible Multi‑Position Installation
  Designed for downflow and horizontal airflow configurations, this unit fits a wide range of installation spaces such as tight closets, crawl spaces, or utility rooms.

• Smart Diagnostics for Easier Servicing
  The self‑diagnostic control board with constant‑memory fault code history makes troubleshooting faster and helps HVAC professionals maintain performance over time.

• Low NOx Emissions & Modern Compliance
  Meets Low NOx emission standards and is built for compatibility with modern R‑32 systems, aligning with current refrigerant and air‑quality requirements.

Q&A

Q1: What size and efficiency does this gas furnace deliver?
A: The Goodman GD9S960804CN provides 80,000 BTU input (about 76,800 BTU output) with a 96 % AFUE rating, meaning most of the fuel is converted into usable heat for high energy efficiency.

Q2: What kind of operation does it use?
A: It’s a single‑stage gas furnace with a multi‑speed ECM blower, offering dependable heating and smoother airflow compared to standard motors.

Q3: What installation orientations are supported?
A: Designed for downflow or horizontal installation — ideal for attic, crawl space, or closet placements.

Q4: What fuel type and venting are required?
A: Runs on natural gas and is convertible to propane (LP). Because it’s high efficiency (96 % AFUE), it uses plastic/PVC venting rather than metal flue.

Q5: What are key build features?
A: Includes heavy‑duty aluminized steel primary and stainless‑steel secondary heat exchangers, durable silicon nitride igniter, self‑diagnostic control board, and quiet induced‑draft blower for reliable operation and easy troubleshooting.

Q6: What are the electrical and airflow specs?
A: Operates on 115 V single‑phase power with up to 1,600 CFM airflow via the multi‑speed ECM blower.

Q7: What are the physical dimensions?
A: Approximate size is 34.5″ H × 21″ W × 28.75″ D and weight around 141 lb.

Maintenance Tips

• Replace Air Filters Every 1–3 Months – Check the air filter monthly and replace when dirty to ensure strong airflow, protect the blower, and prevent reduced efficiency.

• Annual Professional Inspection – Have a qualified HVAC technician inspect and tune up burners, heat exchanger, ignition system, safety controls, gas pressure, and PVC flue venting each fall before the heating season.

• Keep Area Around Furnace Clear – Maintain a clear space free of debris, dust, and flammable materials around the unit to support proper airflow and safe operation.

• Check Vents & Ductwork – Ensure supply and return vents are unobstructed to avoid short cycling and uneven heating; blocked airflow can reduce efficiency and stress the system.

• Inspect PVC Intake/Exhaust Pipes – Periodically check vent pipes outside for ice, nests, or debris that could obstruct combustion air or exhaust.

• Test Thermostat & Safety Devices – Replace thermostat batteries annually, test carbon monoxide (CO) detectors, and confirm control settings for reliable performance.

• Document Maintenance – Keep a log of filter changes and professional service visits to support warranty coverage and help diagnose issues early.