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Goodman 80% 40,000 BTU Gas Furnace Two Stage 9 Speed 14" Upflow/Horizontal

Name: Goodman 80% 40,000 BTU Gas Furnace Two Stage 9 Speed 14" Upflow/Horizontal
Brand: Goodman
SKU: GR9T800403AN
Price: 1267.0 USD
Availability: InStock
Rating: 5 (6 reviews)

By Goodman | Model: GR9T800403AN | ID: 100950

✓ 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

$1,267.00 + FREE SHIPPING

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Product Details

Goodman 80% 40,000 BTU Gas Furnace Two Stage 9 Speed 14" Upflow/Horizontal GR9T800403AN

The Goodman GR9T800403AN Gas Furnace delivers exceptional heating performance, quiet operation, and proven reliability at an affordable price. Designed for small homes or spaces where efficient airflow and precise temperature control matter, this two-stage, 9-speed gas furnace provides energy-efficient comfort with durable construction.

Combining advanced engineering with flexible installation options, the GR9T800403AN stands out as a dependable choice in the 80% AFUE furnace category, balancing efficiency, noise reduction, and easy maintenance.

Key Features

Two-Stage Gas Valve Operation – Adjusts heating output based on demand for quiet, efficient comfort and energy savings.
9-Speed ECM Blower Motor – Maximizes airflow while reducing electricity consumption compared to traditional PSC motors.
High-Efficiency Heat Exchanger – Engineered for long-lasting performance and optimal heat transfer.
SureStart® Silicon Nitride Igniter – Provides reliable ignition with extended lifespan and less maintenance.
Self-Diagnostic Control Board – Simplifies troubleshooting through real-time system monitoring and alerts.
Quiet Induced Draft Blower – Two-speed design ensures quiet operation during all heating stages.
Low Constant Fan Speed – Circulates air continuously for improved air quality and temperature consistency.
Heavy-Gauge Insulated Steel Cabinet – Durable and insulated for noise reduction and thermal efficiency with baked enamel finish.
Flexible Installation – Supports upflow and horizontal configurations for versatile placement.
Universal Gas Connections – Left or right gas and electrical service connections for easy installation.
Low NOx Compliant – Meets emissions standards except in SCAQMD and SJVAPCD regions in California.

Perfect for Smaller Homes

This 40,000 BTU furnace is designed to efficiently heat smaller homes or spaces, delivering dependable, quiet, and energy-conscious performance ideal for climate-dependent heating needs.

Natural Gas or LP Compatible

Factory-equipped for natural gas with the option to convert to propane using an LP conversion kit (sold separately), providing versatile fuel compatibility.

Easy Installation and Maintenance

The multi-position cabinet design and color-coded low-voltage terminals simplify installation and reduce labor time. Durable components like the hot surface igniter, self-diagnostic control board, and robust heat exchanger help minimize lifetime maintenance costs.

Warranty Coverage

Lifetime Heat Exchanger Warranty
10-Year Parts Warranty
10-Year Unit Replacement Warranty (with proper installation and online registration)

View More Furnaces

Specifications

Goodman 80% 40,000 BTU Gas Furnace Two Stage 9 Speed 14" Upflow/Horizontal GR9T800403AN

Brand	Goodman	SKU	GR9T800403AN
Weight (in lbs)	105	AHRI Certificate Number	215358017
Airflow Direction	Upflow/Horizontal	Exhaust Flue Requirement	Metal
Brand/Manufacturer	Goodman	Replaces	GM9C800403AN & GMEC800403AN
Product Features	New Refrigerant Compliant	Furnace Efficiency / AFUE	80%
Heating BTU	40,000	Blower Motor	9 Speed - ECM
Maximum CFM	1200	Configuration	Upflow/Horizontal
Electrical	115v 1 Phase 60 Hz	Max Breaker Size	15 Amps
Min. Breaker Size	7.7 Amps	Burner Stages	Two
Fuel Type	Propane, Natural Gas	Height	33 3/8"
Width	14"	Depth	28"
Warranty	Lifetime Heat Exchanger, 10 Years Unit Replacement, and 10 Years Parts with Online Registration

Warranty

Goodman 80% 40,000 BTU Gas Furnace Two Stage 9 Speed 14" Upflow/Horizontal GR9T800403AN

Warranty Type	Heat Exchanger	Unit Replacement	Parts
Standard Warranty	5-Year Parts	5-Year Parts	5-Year Parts
Registered Warranty	Lifetime (Manufacturer)	10 Years	10-Year Parts

Documents

Goodman 80% 40,000 BTU Gas Furnace Two Stage 9 Speed 14" Upflow/Horizontal GR9T800403AN

Specification Sheets

Installation Manual

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.

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.