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Wide portfolio of residential ducted systems, including furnaces, central AC, and air-source heat pumps
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Exclusive Dave Lennox Signature® Collection with variable-capacity technology
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High-efficiency models reaching SEER2 up to 28 and AFUE up to 99%
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Known for SilentComfort™ Technology reducing operational noise
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Strong emphasis on environmentally friendly refrigerants and sustainable design
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Smart thermostat integration through Lennox iComfort® S30 for precision control

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Affinity™ Series with high-efficiency variable-capacity furnaces and ACs
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LX Series for balanced mid-range value and Energy Star® performance
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ClimaTrak™ Comfort System for customized heating/cooling cycles
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Charge Assurance™ technology to simplify installation and servicing
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10-year limited parts warranty and lifetime heat exchanger coverage
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Smart thermostat compatibility with Wi-Fi control and energy monitoring
Lennox HVAC
Among the major names in HVAC, Lennox stands out for its long heritage and reputation for pushing the limits of efficiency. For this review, I focused on three cornerstone products that reflect the brand’s residential ducted portfolio: the SLP99V Gas Furnace, the SL28XCV Variable-Capacity Air Conditioner, and the XP25 Variable-Capacity Heat Pump. Together, these models showcase what Lennox brings to homeowners who demand consistent comfort, low energy bills, and technology that balances innovation with real-world reliability. Over years of field testing and speaking with homeowners, I’ve seen both the strengths and the areas where Lennox could improve, and this review reflects that balance.
York HVAC
York is a name you’ve probably heard before—especially if you’ve ever set foot in a commercial building or sports arena, where its massive rooftop units are practically iconic. But on the residential side, York has been quietly building a reputation for dependable comfort and accessible innovation. With a catalog split into the premium Affinity™ series and the more value-driven LX series, York gives homeowners choices that balance efficiency, technology, and price.
What sets York apart is its roots in large-scale systems: when a brand engineers equipment for stadiums, you can expect durability and reliability to filter down into the products designed for homes. Of course, not everything is perfect—York has fewer flagship “flashy” models compared to Carrier or Lennox, and some homeowners have reported dealer support inconsistencies. Still, when installed by a qualified contractor, York delivers steady, efficient performance backed by solid warranties.