Lennox
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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
Coleman
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CP9C Echelon® Gas Furnace with up to 98% AFUE and modulating burner technology
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AC21 Echelon® Air Conditioner reaching up to 20 SEER2 with variable-capacity cooling
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HC20 Echelon® Heat Pump delivering up to 20 SEER2 and 10.5 HSPF2 for year-round efficiency
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Climate Set™ feature allows installers to fine-tune systems for humid, dry, or temperate regions
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Charge View™ technology for easier, more accurate installation and service diagnostics
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Competitive lifetime heat exchanger warranty and 10-year limited parts coverage
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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.
Coleman HVAC
Coleman may be best known for its camping gear, but in HVAC, it’s part of the Johnson Controls family, sharing engineering DNA with York and Luxaire. While smaller in market share than Carrier or Trane, Coleman positions its Echelon® series as a premium residential lineup that combines reliability, efficiency, and installer-friendly design.
For this review, I’m focusing on three flagship models: the CP9C Gas Furnace, the AC21 Air Conditioner, and the HC20 Heat Pump. Together, they demonstrate Coleman’s ability to deliver modern HVAC solutions with modulating, variable-capacity technology that rivals the bigger names. In my field experience, Coleman often appeals to homeowners who want premium comfort at competitive prices, especially in regions where local Johnson Controls dealers are strong.
