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Goodman GR9S800804CX

Goodman 80% 80,000 BTU Gas Furnace Low NOx 21"Width Upflow/Horizontal R32

By Goodman | Model: GR9S800804CX | ID: 100944
✓ Manufactured in the USA
✓ No Sales Tax - in most states excluding California
✓ Manufacturer Warranty Included
✓ Most Products In Stock - Call or Text (833) 658-3387 for availability
$1,407.00 + FREE SHIPPING

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Product Details

Goodman 80% 80,000 BTU Gas Furnace Low NOx 21"Width Upflow/Horizontal GR9S800804CX

The Goodman GR9S800804CX is an 80,000 BTU, 80% AFUE gas furnace engineered for dependable and efficient home heating. Built with a 9-speed ECM blower motor and a single-stage burner, this unit ensures stable performance while maintaining low emissions for California Low NOx compliance. Designed for upflow and horizontal installations, it provides installation flexibility and energy savings for small to medium-sized homes. With its metal flue venting requirement and natural gas operation (with optional LP conversion kit), it adapts to varying home heating needs. Its hot surface igniter and self-diagnostic control board enhance reliability and simplify maintenance, making it a great option for homeowners seeking long-term value.

Key Features

  • 80,000 BTU heating capacity for small to medium-sized homes
  • 80% AFUE gas furnace for standard energy efficiency
  • Low NOx compliant for California (excludes specific counties)
  • Upflow and horizontal installation configurations
  • Natural gas with optional LP conversion kit (sold separately)
  • 9-speed ECM blower motor for optimized airflow and power savings
  • Single-stage burner for consistent heating performance
  • Durable hot surface igniter for improved ignition reliability
  • Heavy-gauge steel cabinet for added durability and reduced noise
  • Self-diagnostic control board for easy troubleshooting
  • Color-coded low-voltage terminals for simplified installation

This furnace is best suited for homes requiring up to 80,000 BTUs of heat with a focus on energy efficiency and compliance with Low NOx regulations. Ideal for installations in attics, basements, or utility spaces where horizontal or upflow configurations are preferred.

View More Furnaces

Specifications

Goodman 80% 80,000 BTU Gas Furnace Low NOx 21"Width Upflow/Horizontal GR9S800804CX

Brand Goodman SKU GR9S800804CX
Weight (in lbs) 132 AHRI Certificate Number 215358058
Airflow Direction Upflow/Horizontal Exhaust Flue Requirement Metal
Product Features Low NOx, New Refrigerant Compliant Furnace Efficiency / AFUE 80%
Heating BTU 80,000 Blower Motor 9-Speed - ECM
Maximum CFM 1760 Horsepower 3/4 HP
Configuration Upflow/Horizontal Electrical 115 V. 1 Phase 60 Hz
Max Breaker Size 15 Amps Min. Breaker Size 11.3 Amps
Low NOx Low NOx Burner Stages Single
Fuel Type Propane, Natural Gas Height 33 3/8"
Width 21" Depth 28"
Warranty Lifetime Heat Exchanger and 10 Years Parts with Online Registration
Warranty

Goodman 80% 80,000 BTU Gas Furnace Low NOx 21"Width Upflow/Horizontal GR9S800804CX

Warranty Type Residential Multi-Family Commercial
Standard Warranty 5 year parts 5 year parts 5 year parts
Registered Warranty 10 year parts 10 year parts 5 year parts
Documents

Goodman 80% 80,000 BTU Gas Furnace Low NOx 21"Width Upflow/Horizontal GR9S800804CX

GR9S80 Installation Manual

GR9S80 Specifications Sheet

Goodman Furnace Warranty

Shipping

We ship freight to the 48 contiguous states, excluding Hawaii and Alaska. Some shipping restrictions may apply. Liftgate services may incur an additional fee, which can be added at checkout.

Order Processing: Orders are processed within 1-3 business days (excluding weekends). Orders placed on Fridays will be processed the next business day. Once shipped, you’ll receive an email confirmation with tracking details. Backordered products may have longer processing times, and we will notify you of any delays.

Arrival of Goods: Freight delivery times depend on the carrier's schedule and routing. Estimated delivery times are provided at checkout. The carrier will contact you to arrange delivery, and you must be present to sign for the shipment.

Damages: Upon delivery, inspect your shipment carefully for any damage or discrepancies. Note any issues on the carrier’s delivery receipt and notify us within 24 hours. Claims made after this timeframe may be denied. Photographic proof is required for processing claims. Report damages or discrepancies immediately at support@hvacstore.com.

Returns: For returns unrelated to damage, contact us at support@hvacstore.com for authorization. Return shipping costs are the customer’s responsibility, and a 20% restocking fee applies. Items must be in original packaging and condition for a refund.

Delivery Receipt: Before signing the delivery receipt, inspect the shipment for any damage. Your signature confirms acceptance of the delivery unless issues are noted.

Policy Updates: Our shipping policy may change, and updates will be communicated via our website or other channels. For any questions, contact The HVAC Store at support@hvacstore.com or call (833) 658-3387.

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Customers rate us 5.0/5 based on 9 reviews.
Based on 9 reviews
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B.H.
Impressed by the quality

I’ve installed Goodman heat pumps before at a similar price point. This was better quality, and a great deal from the HVAC store. I’m always a little nervous about picking the lowest cost provider but the came through quick and no damage.

I’m in the middle of install so if you don’t see an update, things went well. As I said, first impressions as I opened it up to adjust airflow direction was very impressed!

B
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Bobby Jackson
A good store to shop for HVAC supply

The store did some things I didn't believe the manager was very helpful in fixing my problem

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Ron Belizze
Perfect

Great communication and great price

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Billy M
very reliable company and great prices

Bought a few units from this company and they were very friendly and easy to work with. Either matched prices or beat the price and had fast shipping also.

P
ACiQ 2 Ton Central Ducted Air Handler Multi-Position 17.5" Cabinet R454B
Paul R
Excellent company to purchase from

I wasn’t to sure about if this company could deliver it quickly but it arrived within a week. No issues. I needed this one for parts as my first one that I installed a year ago had the ecm go out on the blower fan. Parts are hard to come by for this Chinese brand. I think the ecm went out due to condensation in the main supply plenum dripping onto fan motor. I do like this ac unit but hope the fan lasts longer than a year. I covered the fan ecm with flex seal tape.

K
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Ken Swarner
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Excellent value, customer sales support (a human called to confirm online order... greatly appreciated!), fast shipping. Very happy customer.

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Dave Gard
A + Company

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Phillip Davis

Sale representative Lopez was very experienced and professional. I would recommend this company to any one and I am looking forward to work with Lopez again.

Product Details

Goodman 80% 80,000 BTU Gas Furnace Low NOx 21"Width Upflow/Horizontal GR9S800804CX

The Goodman GR9S800804CX is an 80,000 BTU, 80% AFUE gas furnace engineered for dependable and efficient home heating. Built with a 9-speed ECM blower motor and a single-stage burner, this unit ensures stable performance while maintaining low emissions for California Low NOx compliance. Designed for upflow and horizontal installations, it provides installation flexibility and energy savings for small to medium-sized homes. With its metal flue venting requirement and natural gas operation (with optional LP conversion kit), it adapts to varying home heating needs. Its hot surface igniter and self-diagnostic control board enhance reliability and simplify maintenance, making it a great option for homeowners seeking long-term value.

Key Features

  • 80,000 BTU heating capacity for small to medium-sized homes
  • 80% AFUE gas furnace for standard energy efficiency
  • Low NOx compliant for California (excludes specific counties)
  • Upflow and horizontal installation configurations
  • Natural gas with optional LP conversion kit (sold separately)
  • 9-speed ECM blower motor for optimized airflow and power savings
  • Single-stage burner for consistent heating performance
  • Durable hot surface igniter for improved ignition reliability
  • Heavy-gauge steel cabinet for added durability and reduced noise
  • Self-diagnostic control board for easy troubleshooting
  • Color-coded low-voltage terminals for simplified installation

This furnace is best suited for homes requiring up to 80,000 BTUs of heat with a focus on energy efficiency and compliance with Low NOx regulations. Ideal for installations in attics, basements, or utility spaces where horizontal or upflow configurations are preferred.

View More Furnaces

Specifications

Goodman 80% 80,000 BTU Gas Furnace Low NOx 21"Width Upflow/Horizontal GR9S800804CX

Brand Goodman SKU GR9S800804CX
Weight (in lbs) 132 AHRI Certificate Number 215358058
Airflow Direction Upflow/Horizontal Exhaust Flue Requirement Metal
Product Features Low NOx, New Refrigerant Compliant Furnace Efficiency / AFUE 80%
Heating BTU 80,000 Blower Motor 9-Speed - ECM
Maximum CFM 1760 Horsepower 3/4 HP
Configuration Upflow/Horizontal Electrical 115 V. 1 Phase 60 Hz
Max Breaker Size 15 Amps Min. Breaker Size 11.3 Amps
Low NOx Low NOx Burner Stages Single
Fuel Type Propane, Natural Gas Height 33 3/8"
Width 21" Depth 28"
Warranty Lifetime Heat Exchanger and 10 Years Parts with Online Registration
Warranty

Goodman 80% 80,000 BTU Gas Furnace Low NOx 21"Width Upflow/Horizontal GR9S800804CX

Warranty Type Residential Multi-Family Commercial
Standard Warranty 5 year parts 5 year parts 5 year parts
Registered Warranty 10 year parts 10 year parts 5 year parts
Documents

Goodman 80% 80,000 BTU Gas Furnace Low NOx 21"Width Upflow/Horizontal GR9S800804CX

GR9S80 Installation Manual

GR9S80 Specifications Sheet

Goodman Furnace Warranty

Shipping

We ship freight to the 48 contiguous states, excluding Hawaii and Alaska. Some shipping restrictions may apply. Liftgate services may incur an additional fee, which can be added at checkout.

Order Processing: Orders are processed within 1-3 business days (excluding weekends). Orders placed on Fridays will be processed the next business day. Once shipped, you’ll receive an email confirmation with tracking details. Backordered products may have longer processing times, and we will notify you of any delays.

Arrival of Goods: Freight delivery times depend on the carrier's schedule and routing. Estimated delivery times are provided at checkout. The carrier will contact you to arrange delivery, and you must be present to sign for the shipment.

Damages: Upon delivery, inspect your shipment carefully for any damage or discrepancies. Note any issues on the carrier’s delivery receipt and notify us within 24 hours. Claims made after this timeframe may be denied. Photographic proof is required for processing claims. Report damages or discrepancies immediately at support@hvacstore.com.

Returns: For returns unrelated to damage, contact us at support@hvacstore.com for authorization. Return shipping costs are the customer’s responsibility, and a 20% restocking fee applies. Items must be in original packaging and condition for a refund.

Delivery Receipt: Before signing the delivery receipt, inspect the shipment for any damage. Your signature confirms acceptance of the delivery unless issues are noted.

Policy Updates: Our shipping policy may change, and updates will be communicated via our website or other channels. For any questions, contact The HVAC Store at support@hvacstore.com or call (833) 658-3387.

Reviews

Customer Reviews

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