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What size furnace should I buy?

Square FootageFurnace BTU
1,000-1,200 sq. ft. Home40,000 - 60,000 BTU
1,200-1,500 sq. ft. Home60,000 BTU
1,500-1,800 sq. ft. Home60,000 - 80,000 BTU
1,800-2,500 sq. ft. Home80,000 - 100,000 BTU
2,500-3,500 sq. ft. Home100,000 to 120,000 BTU
Amana AR9S80-U Review

Amana AR9S80-U Review

AFUE: Up to 80 percent
Burner Type: Single-stage
Blower Type: Variable-Speed ECM Blower Motor
Price: 3,500 – 4,500
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Amana AR9S80-U: Reliable Heating for Everyday Comfort

The Amana AR9S80-U is a durable and efficient furnace designed to deliver dependable heating for residential spaces. Featuring a single-stage burner and a variable-speed ECM blower motor, this model offers a practical balance of affordability, consistent performance, and comfort—making it an excellent choice for homeowners seeking reliable home heating.


Key Features

Single-Stage Burner

The AR9S80-U uses a single-stage burner to provide steady and reliable heating. Its simple design ensures consistent indoor comfort throughout the cold months.

Variable-Speed ECM Blower Motor

The variable-speed blower optimizes airflow for even temperatures, reduces energy consumption, and operates more quietly than fixed-speed models, enhancing comfort and efficiency throughout your home.

Durable Construction

Built with a heavy-gauge steel cabinet and a durable silicon nitride igniter, the AR9S80-U is designed for long-lasting performance. High-quality materials reduce maintenance needs and contribute to the furnace’s overall reliability.

Comprehensive Warranty Protection

Amana offers strong warranty coverage for the AR9S80-U:

  • 5-Year Parts Warranty – Covers essential furnace components.

  • 20-Year Heat Exchanger Warranty – Ensures long-term reliability.

  • 25-Year Heat Exchanger Warranty with Registration – Extended protection when registered.

  • 10-Year Extended Parts Warranty with Registration – Additional coverage upon registration.


Why Choose the Amana AR9S80-U?

  • Consistent Heating: Single-stage burner delivers reliable warmth for everyday comfort.

  • Energy Efficiency: 80% AFUE rating makes it suitable for regions with moderate winter conditions.

  • Quiet Operation: Sound-isolated blower assembly minimizes operational noise for a peaceful home environment.

  • Enhanced Airflow Control: Variable-speed blower adjusts to maintain consistent airflow, improving comfort and indoor air quality.

While it does not carry ENERGY STAR® certification, the AR9S80-U remains a dependable and cost-effective heating solution. Its combination of durability, steady performance, and strong warranty coverage makes it a smart choice for homeowners who value long-term comfort and peace of mind.


The Amana AR9S80-U is an ideal mid-range furnace for those seeking a balance between performance and affordability. With robust warranty protection and reliable heating capabilities, it offers lasting comfort and efficiency for your home.