1/2" 2-Stage Gas Furnace, Upflow/Horizontal, 90,000 BTU

Armstrong Air A97US2V090C16S – 97% AFUE Two-Stage Gas Furnace with ECM Blower

The Armstrong Air A97US2V090C16S delivers dependable heating performance with a 97% AFUE efficiency rating and a two-stage gas valve for improved temperature control and fuel savings. Designed for upflow and horizontal installations, this 90,000 BTU/h furnace is built to meet the requirements of residential systems where both comfort and operational efficiency are a priority.

Equipped with a variable-speed ECM blower motor, this unit provides optimized airflow, enhances humidity management during cooling, and supports compatibility with advanced thermostat controls for integrated system performance.

Key Performance Features

• Two-Stage Burner Operation: Adjusts heat output to better match demand, increasing system efficiency and indoor comfort
• 97% AFUE: Reduces fuel usage by extracting more heat per unit of gas, lowering annual operating costs
• Variable-Speed Blower: Provides continuous and quiet air delivery while reducing electrical consumption
• Sealed, Insulated Cabinet: Minimizes air leakage and helps maintain quieter operation
• Aluminized Steel Heat Exchanger: Corrosion-resistant design for extended service life

Technical Specifications

• Model: A97US2V090C16S
• Heating Input: 90,000 BTU/h
• AFUE: 97%
• Stages: Two
• Blower Motor: Variable-Speed ECM
• Voltage: 120V / 60Hz
• Configuration: Upflow/Horizontal
• Cabinet Width: 21 inches
• Shipping Weight: Approx. 204 lbs

Installation Guidance

This model requires professional installation to ensure adherence to local codes and to maximize system efficiency. The unit’s design accommodates flexible venting options and includes diagnostics for simplified setup and service. Proper installation is essential to maintain factory warranty and performance specifications.

Professional Applications

Contractors will find the A97US2V090C16S ideal for residential upgrades and new system installations requiring ENERGY STAR-level performance. The furnace’s two-stage capability and blower versatility enhance load-matching and temperature stability across multiple zones when integrated with compatible controls.