Description
The Goodman® GDH8 80% AFUE Two-Stage (Convertible), Multi-Speed, Dedicated Downflow (blows air into ducts located below it) Gas Furnace features a patented aluminized-steel tubular heat exchanger and durable Silicon Nitride Hot Surface Ignition system. This 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 gas heater can be installed in a variety of locations.
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).
Goodman Patented TuffTube™ dual-diameter tubular furnace heat exchanger with lifetime limited warranty plus 10-year furnace replacement limited warranty (with online registration)
Furnaces’ two-stage gas valve with revolutionary new Dual$aver control technology allows installer to turn on two-stage operation with the flip of a dipswitch
Silicon Nitride furnace igniter with patented adaptive learning routine for maximum igniter life Energy-saving, quiet four-speed direct-drive circulator blower motor means less furnace maintenance
Integrated electronic furnace control board with self-diagnostics, low-voltage terminal block, and separate terminals for electronic air cleaner and 24-volt humidifiers
Goodman furnace control board stores the last five diagnostic codes in memory; simple push-button activation outputs the fault history to a flashing red LED
Low constant fan mode allows the homeowner to activate the lowest available heating speed to circulate air quietly and efficiently throughout the home during the off cycle
Self-adjusting feature automatically adjusts furnace to high or low stage based on outside temperature without outdoor temperature sensor
Quiet single-speed, induced-draft blower
Cabinet Features:
Fully insulated, heavy-gauge furnace steel cabinet with durable baked-enamel finish
Heater’s foil-faced insulation lines the heat exchanger compartment
Gas furnace is designed for multi-position installation: upflow, horizontal left or right
Removable bottom for side- or bottom-return applications
Convenient left or right connection for furnaces’ gas and electric service
Coil and furnace fit flush for most installations