MFG#: GR9S800403AX

The GR9S800403AX Goodman low NOx gas furnace features high-quality construction and efficient operation at a great value. The GR9S800403AX single-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 GR9S800403AX.

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 upflow 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 GR9S800403AX 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 GR9S800403AX 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.

In California, many counties have a lower NOx emission requirement than the rest of the United States. The GR9S800403AX Goodman gas furnace is California Low NOx compliant. With a built-in low emission filter, this Goodman gas furnace produces less nitrogen oxides to be released into the atmosphere, lowering the overall amount of toxic greenhouse gases output of the average California home.

Please note that this furnace cannot be installed in the following counties in California: Fresno, Joaquin, Kern, Kings, Los Angeles, Madera, Merced, Orange, Riverside, San Bernardino, San Stanislaus, and Tulare. In these counties you are required to purchase an Ultra-Low NOx furnace. If you have any questions, please contact us.

Single Stage Furnace

The GR9S800403AX 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.

Natural Gas or LP Furnace

From the factory, the GR9S800403AX 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 GR9S800403AX 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.