3 Ton Gas Furnace, Single Stage, Upflow/Horizontal, 70,000 BTU

Armstrong Air A80UH1E070B12 Gas Furnace – 70,000 BTU, 80% AFUE, Multi-Speed ECM

The Armstrong Air A80UH1E070B12 is a single-stage gas furnace designed for efficient residential heating. With an output capacity of 70,000 BTU and an AFUE rating of 80%, this model offers reliable performance for upflow and horizontal applications. The unit features a multi-speed ECM blower motor, aluminized steel heat exchanger, and a compact 33-inch cabinet height to accommodate installations in space-restricted environments.

Product Highlights

• 80% AFUE: Standard-efficiency furnace suitable for applications where mid-range fuel utilization is acceptable
• Multi-Speed ECM Motor: Delivers consistent airflow while improving system efficiency and comfort
• Aluminized Steel Heat Exchanger: Crimped, wrinkle-bend design increases corrosion resistance and structural durability
• Cabinet Width: 17.5 inches with removable bottom for ease of coil pairing and maintenance
• Application Flexibility: Supports both upflow and horizontal left/right installation configurations
• Integrated Diagnostics: Control board includes LED fault code display and blower delay settings

Technical Specifications

• Model: A80UH1E070B12
• Input Capacity: 70,000 BTU/hr
• Output Capacity: ~56,000 BTU/hr
• Efficiency: 80% AFUE
• Blower Motor: Multi-Speed ECM
• Voltage: 115V / 60Hz / 1 Phase
• Cabinet Dimensions: 33" H x 17.5" W nominal

Installation Considerations

Installation of the A80UH1E070B12 should be performed by a licensed HVAC technician to ensure correct venting, gas line sizing, and code compliance. The compact design simplifies retrofit or new installations in residential settings. For optimal performance, pair with matched cooling equipment and proper ductwork configuration.

Contractor Notes

This model provides a dependable heating platform for value-oriented applications. The ECM blower motor enhances overall HVAC system SEER ratings when used with compatible air conditioning components. The furnace cabinet allows tool-free access to key components, streamlining service and commissioning.