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Quick specs
Brand
Daikin
BTU Input
120,000 BTU/h
BTU Output
96,000 BTU/h
AFUE
80%
Heating Stages
Single-Stage
Blower Motor
1 HP 9-Speed ECM
Cabinet Width
24-1/2"
Airflow Configuration
Upflow/Horizontal
Max Cooling Airflow
5 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 120,000 BTU Single-Stage 9-Speed ECM Gas Furnace (Upflow/Horizontal) GR9S801205DN
120,000 BTU Input·9-Speed ECM Blower
$2,066.21
-
- 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.
Secure payment
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Goodman 80% AFUE 120,000 BTU Single-Stage 9-Speed ECM Gas Furnace (Upflow/Horizontal) GR9S801205DN
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.
$2,066.21
-
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
Daikin
BTU Input
120,000 BTU/h
BTU Output
96,000 BTU/h
AFUE
80%
Heating Stages
Single-Stage
Blower Motor
1 HP 9-Speed ECM
Cabinet Width
24-1/2"
Airflow Configuration
Upflow/Horizontal
Max Cooling Airflow
5 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 GR9S801205DN is a reliable, energy-efficient single-stage natural gas furnace designed for larger homes. It delivers 120,000 BTU input (96,000 BTU output) at 80% AFUE and features a multi-speed ECM blower for quiet, efficient airflow. This Goodman model is R-32 ready with built-in Refrigerant Detection System (RDS) support and is also backwards compatible with R-410A systems.
Key Features
- Heavy-duty aluminized-steel dual-diameter tubular heat exchanger
- Single-stage gas valve
- Durable hot-surface (silicon nitride) igniter
- Quiet single-speed draft inducer
- Self-diagnostic control board with constant memory and fault code LED
- Color-coded low-voltage terminals for easy wiring
- Multi-speed (9-speed) ECM blower motor (1 HP, ~1,075 RPM)
- Foil-faced insulated heat exchanger section
- Provisions for electronic air cleaner and humidifier
- Left or right gas and electrical connections
- Heavy-gauge steel cabinet with durable baked-enamel finish
- Convertible to liquid propane (LP) with optional conversion kit
- AHRI Certified and ETL Listed
Benefits
- 80% AFUE efficiency converts 80% of fuel into usable heat, helping reduce energy costs compared to older furnaces
- 9-speed ECM blower provides quiet operation, better humidity control, and more consistent airflow/comfort
- Flexible upflow or horizontal left/right installation fits a wide range of home layouts
- Self-diagnostic controls simplify troubleshooting and service
- R-32 ready design (with RDS on the circuit board) prepares the system for newer, lower-GWP refrigerants while remaining compatible with existing R-410A equipment
- Durable construction and long-life components support reliable performance and reduced maintenance
- Lifetime limited heat exchanger warranty and 10-year parts limited warranty (with online registration; terms vary by location)
Specifications
| Specification | Detail |
|---|---|
| Model | GR9S801205DN |
| Input Heating Capacity | 120,000 BTU/h |
| Output Heating Capacity | 96,000 BTU/h |
| AFUE | 80% |
| Stages | Single-stage |
| Blower Motor | 9-speed ECM, 1 HP |
| Max Airflow | Up to 2,000 CFM |
| Configuration | Upflow / Horizontal (left or right) |
| Fuel Type | Natural Gas (convertible to LP) |
| Electrical | 115V, 1-Phase, 60 Hz |
| Min. Circuit Ampacity (MCA) | 14.3 A |
| Max Overcurrent Protection (MOP) | 25 A |
| Temperature Rise | 40–70°F |
| Vent Size | 4″ (metal chimney vent) |
| Gas Connection | ½” FPT |
| Number of Burners | 6 |
| Blower Size | 10″ × 10″ |
| Cabinet Width | 24½” (D cabinet) |
| Dimensions (W × D × H) | 24½” × 28″ × 33⅜” |
| Shipping Weight | ≈132–133 lbs |
| Refrigerant Compatibility | R-32 ready (RDS included); backwards compatible with R-410A |
Compatibility
- Installation: Upflow or horizontal left/right applications
- Fuel: Natural gas standard; LP conversion kit available
- Coils/Systems: Compatible with matching Goodman/Daikin evaporator coils and outdoor units; supports R-32 and R-410A systems (RDS included for A2L refrigerants)
- Accessories: Works with electronic air cleaners, humidifiers, and standard thermostats
- Note: Not approved for installation in California’s SCAQMD or SJVAPCD (Low-NOx models may be required in other restricted areas). Professional installation by a licensed HVAC technician is required.
This furnace is a solid value choice for homeowners needing dependable heating capacity with modern efficiency features and flexible installation options. Always confirm local codes, proper sizing, and compatibility with your existing ductwork and outdoor unit before purchase or installation.
Key features
- 120,000 BTU Input — 96,000 BTU output at 80% AFUE
- 9-Speed ECM Blower — quiet, efficient airflow
- R-32 Ready — built-in Refrigerant Detection System
- Upflow/Horizontal Install — single-stage natural gas furnace for larger homes
Why homeowners choose NAW
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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.
Customer reviews
What buyers are saying
Verified reviews from customers who purchased this product.
5.0
2 verified reviews
HD
Harry D
The Goodman GR9S 80% AFUE 120,000 BTU Single Stage Upflow/Horizontal Gas Furnace is a powerhouse of warmth and efficiency, delivering incredible performance at an unbeatable price. With its durable build and consistent heating, this furnace is a game-changer for any home looking for comfort and reliability.
PF
Porter F
I’m blown away by the exceptional value of the Goodman GR9S 80% AFUE 120,000 BTU Single Stage Upflow/Horizontal Gas Furnace—it’s an unbeatable price for such powerful performance! With its efficiency and R-32 refrigerant, it keeps my home comfortably warm while saving energy all winter long!
