100,000 BTU Furnace, 80% Efficiency, 2-Stage Burner, 2,000 CFM Multi-Speed Blower, Dedicated Downflow Application
100,000 BTU Furnace, 80% Efficiency, 2-Stage Burner, 2,000 CFM Multi-Speed Blower, Dedicated Downflow Application
Model: Goodman GDH81005CN
highlights
This is a Downflow unit. Learn about Downflow
To use LP fuel, this unit requires an LP Conversion Kit. See Accessories
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.
Please read this Important Safety Notice
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
Specs
System Information
Configuration
Downflow
Fuel Type
LP Capable (Kit Required) / Natural Gas
Efficiency
Efficiency (% AFUE)
80 %
Performance
Maximum Input BTU
100000 BTU
Maximum Heating Capacity
80000 BTU
Minimum Input BTU
75000 BTU
Minimum Output BTU
60000 BTU
Maximum CFM
2037 @ 0.5
Blower Cooling Capacity
3 / 3.5 / 4 / 5 Tons
Blower Type
Multi-Speed
Burner Stages
Two
Electrical Information
Frequency
60 Hz
Voltage Phase
1
Maximum Overcurrent Protection (Breaker)
15 Amps
Voltage
120 Volts
Product Dimensions
Width
21.000000000 Inches
Depth
28.000000000 Inches
Height
33 3/8 Inches
Cabinet/Chassis Size
C
Product Weight
175 lbs
Shipping Weight
175 lbs
Important Measurements
Vent Connection
4 Inches
Supply Air Opening Size
19 1/2 x 19 5/8 Inches
Flue Pipe Diameter
4
Warranty
Heat Exchanger Warranty
Lifetime
Parts Warranty
10 Years
Certifications
California Approved Furnace
No
Ultra-Low NOx
No
Qualifies for Govt. Money
No
Emission Standard
Standard
ENERGY STAR® Certified
No
Documents
- Goodman Furnace User Manual(PDF, 324 KB)
- Goodman GMH8 - GDH8 Brochure(PDF, 685 KB)
- Goodman GDH8 Technical Information(PDF, 154 KB)
- Goodman Furnace Limited Warranty (2011)(PDF, 28.3 KB)
- Goodman GMH8 GMS8 GDH8 GDS8 Installation Instructions(PDF, 1007 KB)
- Standard AC Wiring Diagrams(PDF, 2.49 MB)
- Goodman GMH8 / GDH8 Spec Sheet(PDF, 474 KB)
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