Two Stage Multi-Speed
|Heating Capacity (BTU):||
|Max Airflow (CFM):||
1/3 @ 1075 RPM
10 Year Parts
Heat Exchanger - Lifetime - 10 Year Furnace Replacement
The Goodman GMH8 80% AFUE Two-Stage (Convertible), Multi-Speed Multi-Position Gas Furnaces feature 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 unit can be installed in a variety of locations.
These furnaces are designed to be used with a single stage room thermostat. They are similar to the Two-Stage Variable Speed (GMV) models. These furnaces are capable of the following heating modes: two-stage burner- low stage to high stage based on an adjustable time set on the board (not controlled by the thermostat). The blower also has two speeds in the heating mode, low and high, and it will change speeds according to the high or low stages. Single Stage where the furnace will run as a standard furnace with one flame level and a single speed blower (Factory setting). The benefits are similar to the Two-Stage Variable Speed (GMV) models but these are Super-efficient with Ultra quiet variable speed circulator motor that gently ramps or down according to heating and cooling demands with enhanced dehumidification and energy savings during cooling months.
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Q:Our Goodman GMH80603AN furnace was installed 3 years ago and, in getting ready for Fall, will not start up.
A:Please see the Troubleshooting chart on pg 30 for more information on this particular error code: http://s3.supplyhouse.com/manuals/1249544712473/Goodman-GMH8-GDH8-DualSaver-Gas-Furnace-Installation-Instructions.pdf