Two-Stage (Convertible), Multi -Speed, 45000 - 115000 BTU/h
The Goodman® GDH8 80% AFUE Two-Stage (Convertible), Multi-Speed Downflow Gas Furnance 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 unit can be installed in a variety of locations.
Model
Heating Capacity (BTU/h)
AFUE (%)
Tons (A/C)
Nominal (CFM)
Dimensions
Ship Weight (lbs)
Price Per Unit
Select Qty.
Input
Output
W"
D"
H"
GDH80453A
45.000
36.000
80
3
637 - 1.262
14
28
39
120
GDH80703A
70.000
56.000
80
3
616 - 1.262
14
28
39
130
GDH80904B
90.000
72.000
80
4
981 - 1.844
17 1/2
28
39
153
GDH81155C
115.000
92.000
80
5
1.001 - 2.134
21
28
39
175
Product Features
Patented TuffTube™ dual-diameter tubular heat exchanger with lifetime limited warranty plus 10-year limited furnace replacement warranty
Two-stage gas valve with revolutionary new convertible technology that allows installer to activate two-stage operation with the flip of a dipswitch
Silicon Nitride igniter with patented adaptive learning control for maximum 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 based on outside temperature without the need for an outdoor temperature sensor
Fully insulated, heavy-gauge steel cabinet with durable baked-enamel finish
Foil-faced insulation lines the heat exchanger
Designed for dedicated downflow application
Convenient left or right connection for gas and electric service
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