40,000 BTU 80% AFUE Two Stage Goodman Gas Furnace | 14" Width | Upflow / Horizontal

OVERVIEW

The GR9T800403AN Goodman gas furnace features high-quality construction and efficient operation at a great value. The GR9T800403AN two-stage, 9-speed furnace utilizes Goodman's superior heat exchanger design to provide efficient, reliable heating to your home. If you're looking to cut your energy bills and improve your comfort without breaking the bank, your search stops with the Goodman GR9T800403AN.

QUICK FACTS

• This furnace is ideal to heat a small house (depending on climate)
• 40,000 BTU 80% efficient natural gas furnace
• Requires metal flue venting
• Can be used in the upflow or horizontal orientation
• Can be converted to an LP furnace with a conversion kit (sold separately)
• Innovative design for electrical efficiency, safety, and lower sound output

40,000 BTU

The GR9T800403AN Goodman gas furnace is 40,000 BTU's. This BTU count is a measure of the input of the furnace per hour, while the output of this furnace is 32,000 BTU's (40,000 X 80% AFUE) per hour. In ideal climate conditions, this 40,000 BTU furnace is usually used to heat a small house.

80% Efficiency Rating

The GR9T800403AN Goodman gas furnace is 80% efficient, and the standard furnace efficiency on the market today. This means that 80% of the gas going into the furnace is used to heat your home and the remaining 20% is lost out of the flue venting. Please note that all 80% furnaces must be vented using metal flue venting, while anything higher than 90% efficient must be vented using plastic/PVC venting.

Please note that this furnace does not comply with California Low NOx or Ultra-Low NOx regulations. For all Low NOx furnaces, click here. For all Ultra-Low NOx furnaces, click here. If you have any questions, please contact us.

Two Stage Furnace

The GR9T800403AN Goodman gas furnace is a two stage furnace that has two heating outputs on the burner: full output on colder winter days and a lower output for milder days that the furnace doesn't have to run quite as much. Two stage furnaces allow for a more even heat distribution, as the furnace will only kick on the higher stage if the indoor temperature is more than a few degrees away from the desired temperature. Since the lower stage will be used more often, the GR9T800403AN will run quieter than a single stage system. While the majority of the benefits of a two stage feature on a furnace are comfort based, the efficiency of the furnace is slightly higher due to it burning less fuel at its lower stage.

Natural Gas or LP Furnace

From the factory, the GR9T800403AN runs on natural gas. However all Goodman gas furnaces can be converted to propane using the furnace's corresponding LP conversion kit, an optional accessory at an additional cost that consists of a replacement set of orifices and springs.

9-Speed ECM Blower Motor

Instead of the last generation PSC blower motor, the GR9T800403AN utilizes a 9-speed ECM motor, which uses less power and provides smarter air circulation. All of this causes an overall increase in the electrical efficiency of your furnace, which saves you money.

Warranty

With installation that follows your state and local codes and with online registration, all Goodman furnaces come with a 10-year unit replacement, 10-year parts, and lifetime heat exchanger warranty through the manufacturer.

Durable Hot Surface Igniter

The hot surface igniter on modern Goodman furnaces are more durable than previous designs, decreasing related issues and lowering maintenance costs. These hot surface ignitors are also more efficient than standing pilot and older HSI designs, saving you even more money.

Self-Diagnostic Control Board

The Goodman brand has improved technology from years of production experience, allowing for a long-lasting product that rarely has any issues. However, if something does go wrong on the furnace, the control board has a set of sensors that allow it to diagnose basic issues, allowing for easy troubleshooting and to notify the owner if basic maintenance or warranty work is recommended. This increases the overall safety of the unit, for the furnace itself and the occupants of the home where it is installed.

Heavy Gauge Steel Cabinet

The heavy-gauge steel cabinet on new Goodman furnaces provide adequate protection to the internal mechanisms of the unit. The cabinet is also more air-tight than previous models, allowing for a quiet, more economical unit due to losing less heat and preventing more sound from exiting the unit.

Ease of Installation

The value of modern Goodman furnaces doesn't end at efficiency. Today's Goodman furnaces feature many different connection options to reduce installation. The GR9T800403AN model has a more universal design, which consists of its ability to be installed in both an upflow or horizontal configuration. This allows for an easier installation in more locations, from your attic to your basement. The furnace also comes with color-coded low-voltage terminals that allow for a shorter and easier installation time, which decreases installation costs.