Lennox Air Conditioners & Heat Pumps

Exacting precision makes Lennox® air conditioners among the quietest and most energy-efficient units you can buy.

Enjoy innovation in every season with precise, quietly efficient Lennox® heat pumps that keep your life simply perfect.

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ML17KC2 Air Conditioner

Mid-efficiency, two-stage air conditioner compatible with 2025 Compliant Refrigerant

Balanced comfort and efficiency

While most air conditioners are single stage, meaning they're either on or off, this air conditioner can heat or cool at two different speeds. Most of the time the unit will meet cooling needs at its lower speed, resulting in balanced and consistent temperatures with lower energy use.


Efficient and Affordable

The ML17KC2 offers energy efficiencies of up to 18.00 SEER2, delivering comfort and energy savings at a more affordable price.


Our Uncontested Quantum™ Coil

With years of rigorous testing under the most extreme conditions, our Quantum Coil – featuring a proprietary aluminum alloy exclusive to Lennox – is designed to weather the harshest elements.


A refrigerant that’s better for the environment.

This product is compliant with 2025 EPA regulations for lower global warming potential (GWP) refrigerants. The Lennox choice of 2025 Compliant Refrigerant has a lower GWP than its predecessor and is formulated to provide excellent, reliable performance of your system for years to come.