The Goodman GMH8/GDH8 Gas Furnaces feature a patented aluminized-steel tubular heat exchanger and durable Silicon Nitride Hot Surface Ignition system. These furnaces are run-tested for heating or combination heating/cooling applications. With a heavy-gauge, reinforced, insulated steel cabinet and durable baked enamel finish, these furnaces can be installed in a variety of locations.
**IMPORTANT** As per California Air Quality Resource Board's SCAQMD agency, this purchase may be subject to a mitigation fee of up to $450, depending on your city of residence. You can check if your zip code or city falls within the SCAQMD here: https://www.arb.ca.gov/app/dislookup/dislookup.php. If you do fall within this area, our team will reach out to you with information on how to pay the fee after you purchase. For more information, please visit: http://www.aqmd.gov/nav/about
Dual-diameter tubular heat exchanger
Two-stage gas valve Dual$aver technology that allows installer to activate the two-stage valve with the flip of a dip-switch
110V Silicon Nitride igniter designed for long igniter life
Furnace control board with self-diagnostics, color-coded low-voltage terminals, and provisions 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 allows homeowner to activate the low heat speed to efficiently circulate air throughout the home.
Self-adjusting feature automatically adjusts furnace to high- or low-stage operation based on outside temperature without an outdoor temperature sensor
Fully insulated, heavy-gauge steel cabinet with durable baked-enamel finish
Foil-faced insulation lines the heat exchanger
Factory-sealed to achieve 2% or less leakage rate at 1.0 water gauge external duct static pressure
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/electric service