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Quick specs
Brand
Goodman
BTU Input
80,000 BTU/h
BTU Output
64,000 BTU/h
AFUE
80%
Heating Stages
Single-Stage
Blower Motor
3/4 HP 9-Speed ECM
Cabinet Width
17-1/2"
Airflow Configuration
Downflow/Horizontal
Max Cooling Airflow
4 Tons (Available AC @ 0.5" ESP)
Not sure this fits your unit?
Call us with your model number and we'll confirm the right part before you order.
Goodman 80% AFUE 80,000 BTU Single-Stage 9-Speed ECM Gas Furnace (Downflow/Horizontal) GD9S800804BN
Goodman GD9S80 Series·80,000 input / 64,000 output BTU, 80% AFUE
$1,877.85
-
- Free shipping — most items ship by the next day
Licensed HVAC technician required. Must be installed by a certified professional. Improper installation voids the manufacturer warranty.
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Goodman 80% AFUE 80,000 BTU Single-Stage 9-Speed ECM Gas Furnace (Downflow/Horizontal) GD9S800804BN
Licensed HVAC technician required. Must be installed by a certified professional. Improper installation voids the manufacturer warranty.
Need help? (888) 292-0874
- Free shipping — most items ship by the next day
Secure payment
VISA MC AMEX DISC PayPal Affirm CHECK
In stock
In most items, small items ship same day. Complete systems ship next business day.
$1,877.85
-
Need help? (888) 292-0874
- Free shipping — most items ship by the next day
Secure payment
VISA MC AMEX DISC PayPal Affirm CHECK
Quick specs
Brand
Goodman
BTU Input
80,000 BTU/h
BTU Output
64,000 BTU/h
AFUE
80%
Heating Stages
Single-Stage
Blower Motor
3/4 HP 9-Speed ECM
Cabinet Width
17-1/2"
Airflow Configuration
Downflow/Horizontal
Max Cooling Airflow
4 Tons (Available AC @ 0.5" ESP)
Not sure this fits your unit?
Call us with your model number and we'll confirm the right part before you order.
The Goodman GD9S800804BN is a reliable, energy-efficient single-stage natural gas furnace from the GD9S80 series. It delivers 80,000 BTU input (64,000 BTU output) at 80% AFUE and is designed for downflow or horizontal left/right installation. It features a multi-speed ECM blower motor, R-32 compatibility (A2L-ready), and a durable aluminized-steel heat exchanger for consistent home heating.
Dimensions
- Height: 33-3/8 inches
- Width: 17-1/2 inches (B cabinet)
- Depth: 28 inches
- Weight: Approximately 107 lbs
- Flue connection: 4 inches
- Blower: 10″ x 8″ (3/4 HP)
Key Features
- 80% AFUE efficiency with single-stage gas valve for consistent heat output
- Multi-speed (9-speed) ECM blower motor for quiet, efficient airflow and better temperature control
- Heavy-duty aluminized-steel dual-diameter tubular heat exchanger
- Durable silicon nitride/hot-surface igniter
- Self-diagnostic control board with LED fault codes and constant memory
- Color-coded low-voltage terminals for easier wiring
- Quiet single-speed draft inducer
- Foil-faced insulated heat exchanger section and heavy-gauge steel cabinet with baked-enamel finish
- Convenient left or right gas and electrical connections
- Compatible with electronic air cleaners and humidifiers
- R-32 (A2L) ready with refrigerant detection system (RDS) on the control board; also backwards-compatible with R-410A systems
- Convertible for liquid propane (LP) use with proper kit
Benefits
- Delivers reliable heating for homes roughly up to ~2,000 sq ft (depending on climate, insulation, and load calculation)
- Multi-speed ECM motor improves comfort, reduces energy use for the blower, and operates more quietly than older PSC motors
- Self-diagnostics simplify troubleshooting and maintenance
- Flexible downflow/horizontal installation suits basements, attics, crawlspaces, or closet applications
- Long-lasting heat exchanger and robust construction support Goodman’s strong warranty coverage
- Easy installation features (color-coded terminals, multi-position design) can help lower labor time
| Specification | Details |
|---|---|
| Model | GD9S800804BN |
| Heating Input | 80,000 BTU |
| Heating Output | 64,000 BTU |
| AFUE | 80% |
| Configuration | Downflow / Horizontal Left or Right |
| Stages | Single-stage |
| Blower Motor | 9-speed ECM, 3/4 HP |
| Max Airflow | ~1,600 CFM (varies by external static pressure) |
| Available Cooling Capacity | Up to 4 tons @ 0.5″ ESP |
| Electrical | 115V / 1 Phase / 60 Hz |
| Min. Circuit Ampacity | 11.3 A |
| Max Overcurrent Protection | 15 A |
| Fuel | Natural Gas (LP convertible) |
| Number of Burners | 4 |
| Temperature Rise Range | 35–65°F |
| Venting | Metal (chimney/Category I) |
| AHRI Reference | 215358040 |
| Certifications | AHRI, ETL, ISO |
| Warranty (typical with registration) | Limited lifetime heat exchanger; 10-year parts |
Notes: Not approved for installation in California SCAQMD or SJVAPCD due to NOx emissions. Professional installation by a qualified HVAC technician is required. Always verify local codes, proper sizing via Manual J load calculation, and compatible indoor coil/air handler.
Compatibility
- Designed for use with matching Goodman or compatible R-32 (and many R-410A) evaporator coils/air handlers in split systems up to 4 tons.
- Supports electronic air cleaners, humidifiers, and thermostats (single-stage or compatible multi-speed setups).
- LP conversion kits available separately.
- Suitable for metal venting systems.
- Replaces earlier models such as GC9S800804BN, GCES800804BN, and similar GDS units.
This unit offers solid performance, quiet operation, and modern features at a value-oriented price point for standard-efficiency residential heating applications. Always consult a licensed HVAC professional for proper selection, installation, and commissioning.
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Help when you need it
Not sure if this is the right part? Call us at (888) 292-0874 and we’ll help you find the correct replacement.
Key features
- Goodman GD9S80 Series — value-oriented natural gas furnace
- 80,000 input / 64,000 output BTU, 80% AFUE — single-stage gas valve
- 9-Speed ECM Blower — quiet, efficient airflow
- Downflow/Horizontal Install — left or right horizontal
Dimensions
Height 33 in.
Width 17 in.
Length 28 in.
Weight 107 lbs.
Customer reviews
What buyers are saying
Verified reviews from customers who purchased this product.
5.0
1 verified review
K
Kent
This Goodman 80% AFUE 80,000 BTU Gas Furnace is an absolute marvel! The price for such a high-performance, efficient unit in a 17.5″ width is surprisingly reasonable, and its flawless performance in heating left me thoroughly impressed. For anyone seeking top-notch heating without compromising quality or value, this furnace is an extraordinary find!
