Inside every Comfort-Aire® GUH80A furnace, you’ll find a rugged motor and smartly designed burners. These important details give the GUH80A long-lasting reliability with less operating noise and consistent temperatures that help you stay more comfortable.
The GUH80A furnace offers an Annual Fuel Utilization Efficiency (AFUE) of 80%, meaning it can convert 80% of the fuel it uses into heat you can feel. So you stay comfortable, while spending less on utility bills.

Features

• An 80% AFUE means the GUH80A converts a full 80% of the fuel it consumes into usable heat. That can help you spend less on energy every month
• The aluminized steel heat exchanger resists corrosion, and is crimped instead of welded for long life and safety
• The anti-vibration blower assembly helps reduce noise during startup and shutdown for peaceful, quiet operation
• Every GUH80A is started and operated at the factory to ensure it performs as expected and provides the highest level of durability
• Our 80% furnaces are backed by a 20 year warranty on the heat exchanger, and 12 year warranty on other components, with registration within 60 days of purchase. Limitations apply, see printed warranty for details.

CONFIGURATIONS

• Upflow / Horizontal
• Downflow

HEAT EXCHANGER DESIGN

• Crimped no-weld aluminized clam shell heat exchanger construction

CABINET DESIGN

• Compact 33” height
• Standardized widths for easy coil fit

AIR DELIVERY SYSTEM

• Multi-speed PSC blower motor
• Easily removable slide-out blower design

CONTROLS

• Single Stage Gas Valve
• Self diagnostics saves last 5 fault codes regardless of power interruption

VENTING

• Rotatable draft inducer for venting flexibility

INSTALLATION FEATURES

• Left or right utility connection
• South Coast Air Quality Management district Low NOx requirements
• Zero step horizontal conversion
• Removable floor base for bottom return air