California ONLY!  Unless you plan to install this furnace in the state of California, you do not need this California-only Low NOx furnace.  Consider the GC9S800804BN instead.  

The Goodman® GC9C8 80% AFUE Two-Stage (Convertible), Multi-Speed, Multi-Position Gas Furnace features a quiet energy efficient blower motor that uses the lowest speed it can to help deliver precise temperature control in your home. Lower blower motor speeds require less energy consumption, which can help to lower utility bills, compared to single speed blower motors. All models are FER compliant and provide up to nine speeds for different cooling tonnages. This efficiency furnace also includes a patented aluminized-steel tubular heat exchanger and durable Silicon Nitride Hot Surface Ignition system. This Goodman gas furnace is run-tested for heating or combination heating/cooling applications. With a heavy-gauge, reinforced, insulated steel cabinet and durable baked enamel finish, this unit can be installed in a variety of locations.

Please read this Important Safety Notice

Standard 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).
• Two-stage gas valve provides quiet, economical heating
• Multi-speed ECM blower motor with four speed settings for heat and 9 speed settings for cooling
• SureStart® Silicon Nitride igniter designed for long igniter life
• Self-diagnostic control board
• Low constant fan speed circulates air throughout the home
• Quiet, two-speed induced draft blower
• Fully insulated, heavy-gauge steel cabinet with durable baked-enamel finish
• Multi-position installation: GM9C80: upflow, horizontal left or right GC9C80: downflow, horizontal left or right
• Removable bottom for side- or bottom-return applications
• Convenient left or right connection for gas/electric service
• Cabinet air leakage ≤ 2%
• Coil and furnace fit flush for most installations

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 10 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.