Best R-32 AC + Furnace Systems in 2025: A Side-By-Side Comparison
Introduction: Why R-32 Matters in 2025
The HVAC industry is undergoing one of the biggest shifts in decades. Refrigerant regulations, energy efficiency mandates, and consumer demand for eco-friendly systems are pushing homeowners to rethink their choices. Air conditioners and gas furnace systems built around R-32 refrigerant are now taking center stage.
Unlike its predecessor, R-410A, R-32 has a global warming potential (GWP) of 675, which is nearly 70% lower. It also offers better thermodynamic efficiency, making it possible for manufacturers to design systems with higher SEER2 ratings without drastically increasing costs. Daikin Global explains that R-32 is easier to recycle, more energy-efficient, and aligned with global climate goals.
But not all R-32 systems are equal. In this comparison, we’ll break down the best R-32 AC + furnace systems in 2025, covering efficiency, warranty, costs, and brand reputation.
Section 1: The Rise of R-32 in North America
While Europe and Asia have used R-32 for years, the U.S. has been slower to adopt. That changed with the American Innovation and Manufacturing (AIM) Act, which mandates an 85% phasedown of HFC refrigerants like R-410A by 2036. The EPA notes this transition is critical to reducing greenhouse gas emissions from HVAC systems.
This shift is not just regulatory—it’s practical. Homeowners upgrading now benefit from:
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Future-proof systems that comply with upcoming refrigerant standards.
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Higher efficiency ratings (SEER2 and AFUE) lead to lower monthly bills.
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Eco-friendly technology that reduces environmental impact.
Section 2: How to Compare R-32 Systems
When deciding between R-32 AC + furnace systems, focus on:
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Cooling Efficiency (SEER2): Defines seasonal energy performance. Modern R-32 units range between 14.4 SEER2 and 24 SEER2.
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Heating Efficiency (AFUE): Gas furnaces convert fuel to heat—80% AFUE is standard, 95–98% AFUE is premium.
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Compressor Technology: Variable-speed compressors outperform single-stage units by providing steadier comfort and lower bills.
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Noise Levels: Quieter systems improve living conditions, especially in open layouts.
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Warranty Coverage: Lifetime or extended warranties can save thousands in repairs.
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Price vs. ROI: Initial costs vary by brand, but rebates and long-term energy savings offset upfront expenses.
Section 3: Goodman R-32 Systems
Goodman is known for affordable, durable HVAC systems. In 2025, its R-32 lineup includes:
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Goodman 2.5 Ton 14.5 SEER2 Heat Pump + Vertical Furnace
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Goodman 3 Ton 15.2 SEER2 AC with 80,000 BTU Furnace
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Goodman 5 Ton 14.4 SEER2 R-32 AC Condenser (GLXS4BA6010)
Strengths
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Value-driven pricing: Great option for homeowners on a budget.
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Strong warranties: 10-year limited parts warranty.
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Wide availability: Goodman is one of the most widely distributed brands in North America.
Considerations
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Many models are single-stage, meaning they run full power or off, with less precise comfort compared to variable-speed systems.
Section 4: Amana R-32 Systems
Amana (Goodman’s premium sister brand) builds on the same reliability with extra comfort features.
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Variable-speed compressors deliver consistent indoor comfort.
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Select models include a lifetime unit replacement warranty, where the company will replace the entire unit if the compressor fails. Amana highlights this warranty as one of the strongest in the industry.
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Designed for homeowners prioritizing quiet, high-efficiency operation.
Best for: Buyers who want more comfort features and are willing to spend more upfront for peace of mind.
Section 5: Trane & American Standard R-32 Systems
Trane and American Standard (sister brands) are top-tier HVAC options with excellent build quality.
Features
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High SEER2 efficiency: Up to 22 SEER2.
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All-aluminum coils for corrosion resistance.
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Smart thermostat integration for optimized energy use.
Strengths
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Some of the quietest systems available, ideal for bedrooms or open-plan homes.
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Long-standing reputation for durability.
Considerations
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Premium pricing compared to Goodman, Rheem, or Ruud.
Section 6: Carrier & Bryant R-32 Systems
Carrier, inventor of modern air conditioning, has embraced R-32 in its Infinity® Series.
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Models achieve up to 20 SEER2.
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Compatible with 96% AFUE gas furnaces.
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Available in two-stage and variable-speed configurations.
Advantages:
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Carrier’s dealer network and support are unmatched.
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Strong smart home integration.
Tradeoffs:
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Higher installation costs, especially with proprietary Infinity controls.
Section 7: Rheem & Ruud R-32 Systems
Rheem and its sibling brand Ruud sit comfortably in the mid-market.
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EcoNet® smart controls allow remote management.
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Mid-range efficiency: 15–17 SEER2.
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Wide availability in both AC and furnace pairings.
Why Choose Rheem/Ruud?
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Strong dual fuel compatibility (gas furnace + heat pump).
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Reliable mid-priced option that balances cost and performance.
Section 8: Lennox R-32 Systems
Lennox is synonymous with ultra-premium HVAC systems.
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Efficiency leader: Select units reach 24 SEER2, among the best in the industry.
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Quietest operation: Some models run below 50 decibels.
Drawbacks:
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Most expensive of all compared brands.
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Proprietary controls can limit servicing flexibility.
Section 9: Side-by-Side Comparison Table
| Brand | SEER2 Range | AFUE Range | Compressor Types | Warranty | Price Tier |
|---|---|---|---|---|---|
| Goodman | 14.4–15.2 | 80–96% | Single / Two-stage | 10-year parts | $ |
| Amana | 15–20 | 80–98% | Two-stage / Variable | Lifetime options | $$–$$$ |
| Trane/AS | 16–22 | 80–97% | Two-stage / Variable | 10-year parts | $$$ |
| Carrier | 16–20 | 80–96% | Two-stage / Variable | 10-year parts | $$$ |
| Rheem/Ruud | 15–17 | 80–96% | Single / Two-stage | 10-year parts | $$ |
| Lennox | 18–24 | 80–98% | Variable | 10-year parts | $$$$ |
Section 10: Which System Is Right for You?
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Budget-conscious buyers: Goodman or Rheem/Ruud offer affordable reliability.
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Balanced performance seekers: Amana and Carrier strike a balance of efficiency, warranties, and features.
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Premium buyers: Trane, American Standard, and Lennox deliver best-in-class efficiency, noise levels, and smart features.
Your choice depends on budget, home size, climate, and comfort priorities.
Section 11: Rebates and Incentives in 2025
Buying high-efficiency R-32 systems isn’t just about monthly savings. Incentives add another layer of value:
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Federal tax credits (up to $2,000) for energy-efficient HVAC systems under the Inflation Reduction Act.
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State-level rebates for high-efficiency upgrades.
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Utility company incentives for reducing peak demand.
Altogether, rebates can cut $500–$2,000 off upfront costs, making premium systems more accessible. Energy.gov offers the latest rebate details.
Conclusion: The Smart HVAC Move for 2025
Switching to an R-32 AC + gas furnace system is more than an upgrade—it’s a strategic investment. You’ll save money, meet regulatory requirements, and enjoy a more comfortable home.
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Goodman/Rheem/Ruud: Budget-friendly and reliable.
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Amana/Carrier: Balanced comfort, warranties, and efficiency.
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Trane/Lennox: Premium performance and cutting-edge technology.
No matter which brand you choose, aligning with the R-32 transition ensures your system will remain compliant, efficient, and eco-friendly for years to come.
