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June 30, 2026

Understanding SEER2 Ratings: How Much Can a New System Save You?

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Upgrading from an old 10-SEER unit from the early 2000s to a modern 15.2 SEER2 system can cut your cooling costs by 30% or more. If you opt for ultra-high-efficiency variable-speed equipment (18 SEER2 and above), the savings grow even larger, and the systems run significantly quieter.Choosing the right SEER2 rating requires balancing upfront installation costs against long-term utility savings to find the best return on investment for your specific property.

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Upgrading from an old 10-SEER unit from the early 2000s to a modern 15.2 SEER2 system can cut your cooling costs by 30% or more. If you opt for ultra-high-efficiency variable-speed equipment (18 SEER2 and above), the savings grow even larger, and the systems run significantly quieter.Choosing the right SEER2 rating requires balancing upfront installation costs against long-term utility savings to find the best return on investment for your specific property.

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Maximizing Your Cooling Investment

Our estimating team at Andes Heating & Air Conditioning works directly with Los Angeles homeowners to calculate the exact ROI for different SEER2 tiers, ensuring you get the perfect balance of performance and value. Keep these SEER2 facts in mind:

  • Higher is Better: A higher SEER2 rating equals lower monthly utility bills.
  • California Minimums: State law requires a minimum of 14.3 SEER2 for most new split systems.
  • Rebate Eligibility: High SEER2 units often qualify for generous utility rebates.
  • Variable Speed: High-efficiency units often feature variable-speed compressors for precise comfort control.