80% Single Stage Upflow/Horizontal Gas Furnace, PSC, 66,000 BTU/HR

Armstrong Air A801E066CU12A – 66,000 BTU 80% AFUE Gas Furnace

The Armstrong Air A801E066CU12A is a single-stage gas furnace designed for upflow or horizontal installations, delivering 66,000 BTU/hr input and 53,000 BTU/hr output. With an 80% AFUE rating, it provides reliable seasonal efficiency for residential heating systems while meeting durability expectations on professional job sites.

This model features a constant torque ECM blower motor to improve airflow control and operational efficiency. The unit incorporates Armstrong Air’s proprietary EHX™ technology, which promotes even heat distribution across the heat exchanger surface while reducing hot spots and stress-related failure. Quiet Combustion™ technology and tight cabinet construction help ensure low operating sound levels and minimal air leakage.

Core Features

• AFUE: 80% Annual Fuel Utilization Efficiency for cost-effective heat output
• Motor Type: Constant torque electronically commutated motor (ECM)
• Burner Technology: Quiet Combustion™ for reduced noise and stable performance
• Heat Exchanger: Tubular steel with EHX™ heat transfer technology
• Cabinet Configuration: Convertible upflow/horizontal installation with compact dimensions

Technical Specifications

• Model: A801E066CU12A
• Input Capacity: 66,000 BTU/hr
• Output Capacity: 53,000 BTU/hr
• Motor: 1/2 HP Constant Torque ECM
• Voltage: 120V
• Airflow: Up to 1,200 CFM
• Dimensions: 14.5" W x 28.375" D x 33" H

Installation Requirements

This furnace requires professional installation to ensure code compliance and performance accuracy. A licensed HVAC contractor should handle gas line connections, flue venting, thermostat setup, and blower configuration. The A801E066CU12A is compatible with matched Armstrong Air cooling components for complete system integration.

Application Notes for Contractors

Contractors will benefit from the A801E066CU12A's consistent build quality and field-proven components. The constant torque ECM motor supports multiple airflow profiles, improving flexibility for zoning and ductwork conditions. Compact width makes it a fit for narrow mechanical closets or attics in residential retrofits or new builds.