sl22klv
Heat Pump
The most precise and efficient heat pump available, featuring Lennox' most advanced cold climate technology.*
ENERGY STAR® Qualified
R-454B
All Dave Lennox Signature® Collection models come with a 10-Year Limited Warranty on compressor and covered components. For more information, visit www.Lennox.com/WarrantyYourWay.
Features
The most precise and efficient heat pump available, featuring Lennox' most advanced cold climate technology.*
The Dave Lennox Signature® Collection SL22KLV is a heat pump like no other. Utilizing Lennox' most advanced cold climate heat pump technology, it optimizes efficiency while delivering rich, warm comfort in temperatures as low as -20°F. From its innovative cabinet design that increases durability, to its digital communication features that maximize accurate control, no other heat pump delivers this level of efficiency and precision.*
Leading heat pump technology for the coldest conditions
Our leading heat pump is engineered with Lennox' most advanced cold climate technology, using a variable-speed compressor with Electronic Refrigerant Injection (ERI) to adjust the energy usage based on the outside temperature. In colder temperatures, the ERI increases heating output efficiently, providing the warm, rich comfort of a gas furnace with the efficiency of a heat pump.
The perfect amount of quiet
To reduce operating sound levels, the SL22KLV uses a sound-dampening system with a precision-balanced, direct-drive fan to ensure smooth, quiet operation. This lets it operate at a volume as quiet as 58 dB, or the sound of a microwave.
Digitally intelligent for accuracy and efficiency
This truly digital product is designed to pair with the Lennox S40 Smart Thermostat as part of a fully communicating home comfort system. Sensors in the equipment allow the thermostat to diagnose issues and automatically make system adjustments to more accurately and efficiently maintain temperature, humidity and air quality.
Cabinets designed for reliability and serviceability
Our most innovative cabinet design features panels that fit securely to the unit to prevent excess noise, along with an easily removable louver panel that allows for quick access by your technician. This proprietary design makes Lennox units more attractive and durable, quieter and easier to install and service, so nothing stands between you and having perfect air in your home.
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
SL22KLV Cold Climate Heat Pump
5/5
5/5
4/5
My SL22KLV Heat Pump
June 06, 2025The unit cools fine but the condenser is pretty loud at times. There is also a problem with the thermostat. The thermostat does not relate an accurate temperature of the home compared to the display. I put a thermal temp gun on the display and the wall right under the display. What I found was the thermostat is about 4 to 5 degrees hotter than the surrounding area. So to control the cooling I have to set my thermostat 4 to 5 degrees hotter than what I want for the home. I felt of the display on the thermostat and it is warm to the touch. Apparently it generates heat internally from the liquid crystal display which throws off the settings. In other words the fancy display is just not accurate and throws off your thermostat. Disappointed that the details were not considered or tested very well. This is not a problem of the install but of the factory design. Worries me about the rest of the unit.
Magnolia Texas
Age: Over 65`
Gender: Male
Reason for Replacement: Planned
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Products that add to the performance of SL22KLV Cold Climate Heat Pump
- * Efficiency claim based on comparison of the combined heating and cooling efficiency within a single product family (HSPF2, EER2, and SEER2 of the SL22KLV) as compared to the HSPF2, EER2, and SEER2 of competitive R-454B and R-32 ducted heat pump as published in AHRI (January 2025). Actual system efficiency may vary based on the system match and other factors; consult AHRI Directory for exact system efficiency. Precision claim based on the average cooling capacity range of the SL22KLV as compared to the average cooling capacity range of the competitive variable capacity compressor units based on published competitive data (January 2025). Cooling capacity ranges calculated across 2, 3, 4 and 5 tonnage at maximum and minimum speed at ARI standard rating conditions: 95°F outdoor and 80°/67° indoor (80°F dry bulb and 67°F wet bulb).
