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Goodman R32 80% AFUE Gas Furnace 40K BTU 14"W Low NOx Downflow/Horizontal

Name: Goodman R32 80% AFUE Gas Furnace 40K BTU 14"W Low NOx Downflow/Horizontal
Brand: Goodman
SKU: GD9S800403AX
Price: 1154.0 USD
Availability: InStock
Rating: 4.95 (12 reviews)

By Goodman | Model: GD9S800403AX | ID: 100970

✓ 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

$1,154.00 + FREE SHIPPING

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Product Details

Goodman R32 80% AFUE Gas Furnace 40K BTU 14"W Low NOx Downflow/Horizontal GD9S800403AX

The Goodman GD9S800403AX is a compact, high-efficiency furnace delivering reliable heating performance with a 40,000 BTU capacity and 80% AFUE. As a California Low NOx-compliant model, it’s built to meet specific emissions standards while still offering durable construction, a multi-speed ECM motor, and a quiet, energy-efficient operation. Designed for downflow or horizontal installations, this furnace is ideal for smaller homes in regions requiring low NOx output.

Key Features

40,000 BTU Heating Capacity – Perfect for Small Homes or Spaces
80% AFUE – Meets Standard Efficiency Rating with Metal Flue Venting
California Low NOx Compliant – Emits Less Nitrogen Oxide for Reduced Environmental Impact
Multi-Speed ECM Blower Motor – Enhances Airflow and Cuts Power Use
Single-Stage Operation – Delivers 100% Heating Output When Active
Heavy-Gauge Steel Cabinet – Reduces Heat Loss & Lowers Operating Noise
Hot Surface Ignitor – Provides Reliable, Efficient Startups
Self-Diagnostic Control Board – Simplifies Troubleshooting and Maintenance
Flexible Installation – Supports Downflow or Horizontal (Left/Right) Configurations
Low-Voltage Color-Coded Terminals – Speeds Up and Simplifies Installation

Important California Compliance Note

This unit meets California Low NOx standards but cannot be installed in the following counties due to Ultra-Low NOx requirements: Los Angeles, Fresno, Joaquin, Kern, Kings, Madera, Merced, Orange, Riverside, San Bernardino, Stanislaus, and Tulare.
For Ultra-Low NOx-compliant furnaces, please contact us directly.

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Specifications

Goodman R32 80% AFUE Gas Furnace 40K BTU 14"W Low NOx Downflow/Horizontal GD9S800403AX

Brand	Goodman	SKU	GD9S800403AX
Type	Gas Heat	Category	Gas Furnaces
Refrigerant Type	R-32	Heating BTU	40,000
Temperature Rise Range (°F)	25-55	Vent Diameter	4"
AHRI Certificate Number	215358036	Airflow Direction	Downflow/Horizontal
Exhaust Flue Requirement	Metal	Product Features	Low NOx, New Refrigerant Compliant
Furnace Efficiency / AFUE	80%	Blower Motor	9-Speed - ECM
Maximum CFM	1200	Horsepower	1/2 HP
Configuration	Downflow/Horizontal	Electrical	115 V. 1 Phase 60 Hz
Max Breaker Size	15 Amps	Min. Breaker Size	7.7 Amps
Low NOx	YES	NOx	< 40 NG/J NOx
Burner Stages	Single	No. of Burners	2
Fuel Type	Propane, Natural Gas	Height	33 3/8"
Width	14"	Depth	28"
Shipping Weight (lbs)	90	UPC	633190210036

Warranty

Goodman R32 80% AFUE Gas Furnace 40K BTU 14"W Low NOx Downflow/Horizontal GD9S800403AX

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 R32 80% AFUE Gas Furnace 40K BTU 14"W Low NOx Downflow/Horizontal GD9S800403AX

GR9S80 / GD9S80 Specification Sheets

GR9S80 / GD9S80 Installation Manual

GR9S80 / GD9S80 Warranty Information

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

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Our Real Customer Reviews

See what our customers have said about us.

Great service and very fast Shipping

As advertised and fast delivery!!

My interface with HVACStore was very good.

My transaction with the HVACStore was very good. It deserved a 5 star but I dinged it one star because the freight company did not deliver my new packaged unit on December 11th as they had communicated to me they would. They finally delivered at 3 PM the next day, December 12th. I and my installer had driven to Raleigh, NC (115 miles) on December 10th expecting the installation to start the next day. We were able to get the unit set in place the afternoon of the delivery but noting more that day. The following day we were able to install the unit and make it fully functional, but we did not have time to install an enclosure around the opening of the house crawl space where the ducts passed through. My installer left Raleigh very early on the morning of the 14th and is no longer available to do this enclosure. I will have to return to Raleigh for this remaining work which would have been already done had the HVAC unit been delivered as originally scheduled.

20-year-old 14 ton Goodman condenser

I have a 20 year-old Goodman 4 ton condenser and furnace. It was the best investment I ever made reasonable in price and minor repairs of normal failures. My plan if this one goes to have one shipped identical to what I own and try to find a local installation company.

Happy with the product and shipping.

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!

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

Perfect

Great communication and great price

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.

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.

Goodman 5 Ton System

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

A + Company

Great price, communication and service I will be buying another furnace from them Fantastic !

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.