The Goodman GMH8 series of standard efficiency furnaces gives you the comfort and flexibility you need for virtually any application.  Easily adjust between heating only, heating and cooling, single stage or dual stage performance with the flip of a dipswitch.  The patented aluminized-steel tubular heat exchanger and durable Silicon Nitride Hot Surface Ignition system 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.

Please read this Important Safety Notice

Standard Features

• Patented TuffTube™ dual-diameter tubular heat exchanger with lifetime limited warranty plus 10-year furnace replacement limited warranty (with online registration)
• Two-stage gas valve with revolutionary new Dual$aver control technology that allows installer to turn on two-stage operation with the flip of a dipswitch
• Propane gas conversion kit for this furnace is available in the Accessories section
• Silicon Nitride igniter with patented adaptive learning routine for maximum igniter life
• Energy-saving, quiet four-speed direct-drive circulator blower motor
• Integrated electronic furnace control board with self-diagnostics, low-voltage terminal block, and separate terminals for electronic air cleaner and 24-volt humidifiers
• 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 outsidetemperature without outdoor temperature sensor
• All “X” models comply with California NOx emissions standards 

Cabinet Features

• Fully insulated, heavy-gauge steel cabinet with durable baked-enamel finish
• Foil-faced insulation lines the heat exchanger compartment
• Designed for multi-position installation: upflow, horizontal left or right
• Removable bottom for side- or bottom-return applications
• Convenient left or right connection for gas and electric service
• 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.