Technical Data
Specs, manuals, videos, and product documents
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A smart, reliable choice for year-round comfort.
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The Goodman GR9T800804CN gas furnace is built for durability, efficiency, and quiet operation. Delivering 80,000 BTUs of heating power with an 80% AFUE rating, this two-stage, 9-speed furnace offers flexible installation options in both upflow and horizontal configurations. Equipped with a 9-speed ECM blower motor and advanced self-diagnostic control board, this unit ensures optimal indoor comfort while reducing utility costs and maintenance concerns. Compatible with natural gas and convertible to propane, it is a solid solution for medium-sized homes seeking long-lasting, cost-effective heating.
This furnace is an excellent choice for residential applications where efficiency, noise reduction, and installation flexibility are priorities. Its dependable design and premium features make it a reliable upgrade or replacement in most HVAC systems.
| Warranty Type | Heat Exchanger | Parts | Unit |
| Standard Warranty | 5 years | 5 years | 5 years |
| Registered Warranty | Lifetime | 10 years | 10 years |
| sku | GR9T800804CN |
|---|---|
| manufacturer | Goodman |
| product category | Unitary |
| product class | Gas Furnace |
| system family | Unitary Split System |
| function category | Heating Only |
| product type | Equipment |
| unit type | Indoor |
| market type | Residential-Single Family |
| product family | GR9T80 |
| short description | Goodman 80% AFUE Gas Furnace Multi Speed ECM, Two Stage |
| family description | Two-Stage Multi-Speed ECM Gas Furnace up to 80% AFUE |
| product description | fer uf furnace |
| cooling btu | 48,000 |
| electrical | 115 V | 60 Hz | 1 Ph |
| max breaker size | 15 A |
| min. breaker size | 12.45 A |
| zone compatibility | Multi Zone |
| height | 33-3/8 in |
| width | 21 in |
| depth | 28 in |
| weight | 129 lb |
| warranty | ALL PARTS - 10 YEARS PARTS;HEAT EXCHANGER - 20 YEARS PARTS;HEAT EXCHANGER - 20 YEARS PARTS;ALL PARTS - 10 YEARS PARTS;HEAT EXCHANGER - 79 YEARS PARTS;HEAT EXCHANGER - 79 YEARS PARTS;HEAT EXCHANGER - 20 YEARS PARTS;HEAT EXCHANGER - 79 YEARS PARTS;ALL PARTS - 10 YEARS PARTS |
| safety information | Proposition 65 Label: Yes |
| seer2 | 0.8 |
| product class pim | Gas Furnace |
| model efficiency | 0.80 |
| installation type | Ducted |
| export control classification number eccn | EAR99 |
| universal product code upc | 663051685628 |
| item stocking unit of measure uom | EA |
| pallet qty | 4 |
| country of origin | USA |
| us hts code | 7322.90.0015 |
| canadian hts code | 7322.90.10.21 |
| afue | 80 % |
| cooling capacity nominal | 48000 Btu/H |
| installation configuration | Upflow/Horizontal |
| produced in us | Yes |
| temperature rise range high fire | 25-55 °F |
| max overcurrent protection | 15 A |
| min circuit amps | 12.45 A |
| power frequency | 60 Hz |
| power phase | 1 Ph |
| power voltage | 115 V |
| air flow rate high heating | 1587.6302745 ft³/min |
| dimensions blower diameter | 10 in |
| dimensions blower width | 10 in |
| dimensions unit depth | 28 in |
| dimensions unit height | 33-3/8 in |
| dimensions unit width | 21 in |
| heat exchanger type | Gas |
| motor speed type | Multi Speed ECM |
| nox burner type | Non NOx Rated |
| weight unit | 129 lb |
| blower motor horsepower | 3/4 metric hp |
| high fire input capacity | 80000 Btu |
| high fire output capacity | 64,000 |
| low fire input capacity | 56,000 |
| low fire output capacity | 44,800 |
| gas valve type | Two Stage |
| proposition 65 label | Yes |
| carton type | CTN |
| case qty | 1 |
| dimensions case depth | 30.00 in |
| dimensions case height | 35.50 in |
| dimensions case width | 22.00 in |
| dimensions distribution unit depth | 30 in |
| dimensions distribution unit height | 35.5 in |
| dimensions distribution unit width | 22 in |
| dimensions pallet depth | 60.00 in |
| dimensions pallet height | 35.50 in |
| dimensions pallet width | 44.00 in |
| dimensions shipping unit depth | 30.00 in |
| dimensions shipping unit height | 35.50 in |
| dimensions shipping unit width | 22.00 in |
| distribution shipping volume unit | 23430 in³ |
| shipping volume unit | 23430.000 in³ |
| truck factor | 0.0000 |
| volume case | 23430.000 in³ |
| volume distribution shipping unit | 23430 in³ |
| weight case | 115.500 lb |
| weight distribution shipping unit | 115.5 lb |
| weight shipping unit | 115.500 lb |
| registered parts warranty commercial | ALL PARTS - 5 YEARS PARTS;HEAT EXCHANGER - 20 YEARS PARTS |
| registered parts warranty multi family | ALL PARTS - 10 YEARS PARTS;HEAT EXCHANGER - 20 YEARS PARTS |
| registered parts warranty residential | ALL PARTS - 10 YEARS PARTS;HEAT EXCHANGER - 20 YEARS PARTS;HEAT EXCHANGER - 20 YEARS PARTS;ALL PARTS - 10 YEARS PARTS;HEAT EXCHANGER - 79 YEARS PARTS;HEAT EXCHANGER - 79 YEARS PARTS;HEAT EXCHANGER - 20 YEARS PARTS;HEAT EXCHANGER - 79 YEARS PARTS;ALL PARTS - 10 YEARS PARTS |
| registered unit replacement warranty residential | HEAT EXCHANGER - 10 YEARS UNIT REPLACEMENT;HEAT EXCHANGER - 10 YEARS UNIT REPLACEMENT;HEAT EXCHANGER - 10 YEARS UNIT REPLACEMENT |
| standard parts warranty commercial | HEAT EXCHANGER - 20 YEARS PARTS;ALL PARTS - 5 YEARS PARTS |
| standard parts warranty multi family | ALL PARTS - 5 YEARS PARTS;HEAT EXCHANGER - 20 YEARS PARTS |
| standard parts warranty residential | ALL PARTS - 5 YEARS PARTS;HEAT EXCHANGER - 20 YEARS PARTS |
Technical Data
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Product FAQs
Goodman Homeowner Support and Consumer Affairs can be reached at 1-877-254-4729 for product, registration, warranty, and claim-related questions. Have the model number, serial number, installation details, and a clear description of the issue available.
Not necessarily. Many Goodman manufacturer limited warranties provide the covered replacement part but exclude labor, freight, and other service-related expenses unless the model certificate specifically states otherwise. Separate Asure extended-service coverage may be available through an authorized dealer for eligible equipment and locations.
Cooling equipment normally lists the model and serial numbers on the outdoor unit rating plate, generally near the refrigerant valves. Furnaces and air handlers normally have a rating plate inside the cabinet, so a licensed dealer should assist with access. Installation paperwork may also include the traveler label from the shipping carton.
Goodman’s internet-sales policy states that equipment purchased through online or other electronic channels is not offered warranty coverage unless it is installed by a dealer who follows all applicable federal, state, and local codes, policies, licensing, and permitting requirements. Keep installation and permit documentation.
Goodman equipment can be registered through the manufacturer’s online product-registration system. Registration may be completed by the homeowner or the installing dealer, so confirm who will submit it and retain the confirmation for your records.
Goodman publishes model-specific product specifications, brochures, and warranty certificates in its Literature Library. Use the exact model number because documentation and warranty terms can differ between product families and revisions.
Goodman offers residential air conditioners, heat pumps, gas furnaces, packaged systems, air handlers, evaporator coils, temperature controls, indoor air products, and selected ductless equipment. Available capacities, efficiencies, refrigerants, and features vary by model and matched system combination.
For many eligible residential Goodman products, registration within 60 days of installation can qualify the original homeowner for enhanced limited-warranty terms. Standard coverage may still apply without registration, but the coverage period and available remedies can be different. Registration rules and exceptions vary by product and jurisdiction.
Be prepared to provide the homeowner’s contact information, installation address, installation date, model and serial numbers, and the installing contractor’s name and phone number. Each system component should be entered accurately so the registered equipment matches the installed system.
No. Goodman states that a homeowner may use another licensed contractor to maintain the system and perform work in accordance with the limited warranty. The contractor should verify coverage and follow Goodman’s warranty and distributor procedures.
The applicable Goodman warranty certificate generally covers qualifying defects in materials or workmanship under normal use and maintenance. The remedy is typically based on replacement parts or another model-specific remedy stated in the certificate. Coverage is not the same as a maintenance plan or protection against every system problem.
The licensed technician should contact Goodman Technical Support or work through the local Goodman distributor. Goodman does not provide technical troubleshooting directly to unlicensed homeowners because HVAC diagnosis and repair involve regulated electrical, gas, and refrigerant work.
Common exclusions can include faulty installation or application, improper operation or maintenance, incompatible or unauthorized accessories, external damage, inadequate electrical service, routine maintenance, filter or coil cleaning, and other conditions listed in the model-specific warranty certificate. The exact certificate controls.
Use Goodman’s online warranty lookup with the equipment model and serial number and the requested homeowner or installation information. The lookup is the best way to confirm the coverage recorded for a specific installed unit.
No. Goodman limited-warranty coverage varies by model, product category, installation type, registration status, installation date, and location. Some eligible models may include enhanced parts, compressor, heat-exchanger, or unit-replacement coverage. Always review the warranty certificate for the exact model.