Goodman GC9S800403AX 40,000 BTU 80% AFUE 9-Speed Single Stage Gas Furnace Low NOx California Model - Downflow/Horizontal

The GC9S800403AX Goodman gas furnace Low NOx features high-quality construction and efficient operation at a great value. The GC9S800403AX single-stage, multi-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 GC9S800403AX.

QUICK FACTS

• This furnace is ideal to heat a smaller house (depending on climate)
• 40,000 BTU 80% efficient natural gas furnace
• Requires metal flue venting
• Can be used in the downflow or horizontal (right or left) 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 GC9S800403AX Goodman gas furnace is 40,000 BTU™s, which is the smallest Goodman furnace size currently available. 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 GC9S800403AX 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.

The GC9S800403AX Goodman gas furnace is a single stage furnace has only one heat output. Regardless of the indoor temperature, this furnace will burn at 100% output whenever the thermostat calls for it. Like a light switch, this furnace™s burner will either be on or off and nothing in between. A single stage furnace is the standard efficient furnace since every time your furnace turns on the furnace uses the same amount of energy.

From the factory, the GC9S800403AX 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.

Instead of the last generation PSC blower motor, the GC9S800403AX utilizes a multi-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.

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

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.

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.

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.

The value of modern Goodman furnaces doesn't end at efficiency. Today™s Goodman furnaces feature many different connection options to reduce installation. The GC9S800403AX model has a more universal design, which consists of its ability to be installed in both an downflow or horizontal (right or left) 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.