Configurations

• Upflow / Horizontal GUH-Series
• Downflow GDD-Series

Heat Exchanger

• Aluminized steel tapered crimped non-welded clam shell design

Burners

• Aluminized steel inshot burners for smooth ignition

Cabinet Design

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

Air Delivery System

• Multi-speed high efficiency (constant torque) blower motor

Controls 

• Single stage gas valve
• Durable silicon nitride ignitor
• Self diagnostics saving last 10 fault codes regardless of power  interruption

Venting 

• Rotatable draft inducer for venting flexibility