CBK45UHVT
Air Handlers
Standard performance, high-efficiency, variable-speed air handler compatible with 2025 Compliant Refrigerant
R-454B
Features
Energy efficiency that adapts to meet your needs.
Equipped with an efficient variable-speed blower motor with the ability to slowly ramp the airflow up or down to provide consistently even temperatures as it only produces the necessary amount of airflow at any given time.
Optional electric heat
Your dealer can customize your air handler to your home by installing optional electric heat strips. These preheat air before circulating it through the home and delivers heat in stages to help prevent drafts.
Quiet and reliable
Fully-insulated cabinet reduces sound for quiet operation and helps prevent cabinet sweating in hot and humid environments.
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.
Ratings & Reviews
See what other customers are saying about
CBK45UHVT Air Handler
5/5
5/5
Very Happy With Our New Lennox
June 26, 2026Very happy so far with our new AC/Heat Pump unit. We replaced a 27 year old unit and had forgotten how nice and quiet a new one is.
Yes, I recommend this product.
Texas
Age: Over 65`
Reason for Replacement: Used home purchase
3/5
3/5
3/5
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