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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

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Ion™ 98 G97CMN Gas Furnace with up to 98% AFUE and modulating gas valve
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Ion™ 21 Variable-Speed Air Conditioner with inverter technology and up to 20.5 SEER2
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Ion™ Variable-Speed Heat Pump (HVH8) delivering up to 19 SEER2 and 11 HSPF2
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Ion™ System Control provides full smart-home integration and real-time diagnostics
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Part of ICP (Carrier Global), sharing advanced engineering with Carrier and Bryant
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10-year No Hassle Replacement™ warranty on premium Ion series equipment
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.
Heil HVAC
Heil may not be the first HVAC brand homeowners think of, but industry insiders know it as part of ICP (International Comfort Products)—the same corporate family that builds Carrier and Bryant systems. This means Heil equipment often shares the same engineering DNA as its premium siblings, but is marketed at a slightly lower price point with fewer flashy brand campaigns.
For this review, I’ll focus on Heil’s flagship Ion™ series: the Ion 98 G97CMN Furnace, the Ion 21 Variable-Speed Air Conditioner, and the Ion Variable-Speed Heat Pump HVH8. Together, these represent Heil’s top technology tier, blending high efficiency, modulating or inverter-driven performance, and smart connectivity. In my experience, Heil appeals to homeowners who want near-premium comfort without paying Carrier Infinity pricing.