Ultra Low NOx / L.A. region: Eligible for installation in California’s South Coast Air Quality Management District (SCAQMD) and San Joaquin Valley Air Pollution Control District (SJVUAPCD). This furnace complies with the 14 ng/J NOx emission limit in SCAQMD Rule 1111 and SJVUAPCD Rule 4905. 

For other California regions, consider the GM9S800805CX Low NOx model instead.

For other U.S. regions, consider the GM9S800805CN standard model.


The Goodman® GM9S8 series of standard efficiency, single stage furnaces are multi-position, making them the perfect choice whether you are installing in a basement, closet, alcove or attic.  The stainless steel tubular heat exchanger and durable silicon nitride hot surface ignition system combined with the heavy-gauge, reinforced, insulated steel cabinet and durable baked enamel finish ensure years of trouble-free performance.  Manufactured by Goodman in the U.S.A., you get one of the best warranties in the industry, all at an unbeatable price.




Furnace Features

• Operates as a natural gas furnace out of the box, and can be easily converted to a propane furnace with optional propane conversion kit (see Accessories tab).
• Heavy-duty stainless steel dual-diameter tubular heat exchanger
• Single-stage gas valve
• Durable hot-surface igniter
• Quiet, modulating draft inducer
• Self-diagnostic control board
• Color-coded low-voltage terminals
• Multi-speed ECM blower motor with 9 speed settings for cooling
• Convenient left or right connection for gas and electrical service
• Heavy-gauge steel cabinet with durable baked-enamel finish
• Foil faced insulated heat exchanger
• Outstanding Warranty Protection

This furnace is covered by what we believe to be one of the best warranties in the indoor home comfort industry. In addition to covering the heat exchanger with a Lifetime Limited Warranty to the original, registered homeowner, if the heat exchanger fails during the first 2 years of ownership, we will replace the entire unit for as long as you own your home. This furnace also has a 10-Year Limited Parts Warranty on all functional parts. For a full description of all warranties applicable to this product, please review the consumer brochure or product warranty in the Documents section.