80,000 BTU Furnace, 80% Efficiency, Single-Stage Burner, 1600 CFM Multi-Speed Blower, Downflow/Horizontal Flow Application
80,000 BTU Furnace, 80% Efficiency, Single-Stage Burner, 1600 CFM Multi-Speed Blower, Downflow/Horizontal Flow Application
Model: Goodman GC9S800804BN
Model: Goodman GC9S800804BN
Delivers consistent reliable warmth year after year
Sturdy design for long term durability
Built for simple installation and easy maintenance
Peace of mind with 10 year warranty (with registration)
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- External Filter Rack, 16" x 20", Opens on 20" Side
$49.99
- Furnace Installation Supplies Package - Basic KIT
$199.99
- Propane (LP) Conversion Kit for Single Stage Goodman Furnaces
$54.99
- Lyric T6 Pro Wi-Fi Programmable Thermostat with stages up to 3 Heat/2 Cool Heat Pump or 2 Heat/2 Cool (compatible with Alexa and Google Assistant)
$214.99
- Pro Installation (Learn More)
This is a Downflow / Horizontal unit. Learn about Downflow / Horizontal
To use LP fuel, this unit requires an LP Conversion Kit. See Accessories
The Goodman GC9S8 dedicated downflow (blows air into ducts located below it) /horizontal flow gas furnaces features a patented aluminized steel tubular heat exchanger and high-efficiency hot surface ignition system. These furnaces are run-tested for heating or combination heating/cooling applications. With a heavy-gauge, reinforced, wrap-around insulated steel cabinet and durable baked enamel finish, these gas heaters can be installed in a utility room, closet, alcove, basement or attic. (Not intended for use in mobile homes).
Important Safety Notice
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 aluminized-steel dual-diameter tubular heat exchanger
- Single-stage gas valve
- Durable Hot-surface igniter
- Quiet, single-speed draft induced
- Self-diagnostic control board
- Color-coded low-voltage terminals
- Multi-speed ECM blower motor with four speed setting for heat and 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
- This furnace does not comply with California NOx Standards (the Goodman furnace models that end in "X" do comply). This furnace is not for sale to the state of California due to emissions laws. Please see our high efficiency Goodman furnaces (models GMS9, GCS9, GMV9, GCV9, GMH) which are compliant with California laws.
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.
Enjoy free shipping on any accessories purchased with the Goodman GC9S800804BN.
- Goodman GM9S8 GC9S8 Installation Manual(PDF, 2.30 MB)
- GM9S8 GC9S8 Spec Sheet(PDF, 1.73 MB)
- Wire Gauge Sizes(PDF, 40.9 KB)