Understanding SEER Ratings: What They Mean for Your AC Purchase

When shopping for a new air conditioner, you'll encounter SEER ratings. Understanding what these numbers mean helps you make a smart investment.

What is SEER?

SEER stands for Seasonal Energy Efficiency Ratio. It measures how efficiently an air conditioner converts electricity into cooling over a typical cooling season.

Higher SEER = More efficient = Lower operating costs

Current SEER Minimums

• As of 2023, minimum SEER requirements are:
• Southern states (including California): 15 SEER
• Northern states: 14 SEER

Systems range from these minimums up to 25+ SEER.

How Much Does SEER Matter?

Example Comparison

Assuming 2,000 cooling hours per year and $0.15/kWh:

• 14 SEER system:
• Annual cost: ~$900

• 18 SEER system:
• Annual cost: ~$700
• Annual savings: ~$200

• 22 SEER system:
• Annual cost: ~$570
• Annual savings vs 14 SEER: ~$330

Factors Affecting Real-World Savings

Climate In mild South Bay, you may use AC less than these estimates suggest, reducing absolute savings (but also total costs).

Usage Patterns If you're rarely home during hot periods, higher efficiency matters less.

Proper Installation A poorly installed high-SEER unit won't deliver its rated efficiency.

System Sizing An oversized system short-cycles and never reaches peak efficiency regardless of SEER rating.

Cost vs. Savings

Higher SEER systems cost more upfront. Consider:

14-16 SEER: Budget-friendly, meets requirements, reasonable efficiency

17-19 SEER: Good balance of cost and efficiency, often the "sweet spot"

20+ SEER: Maximum efficiency, highest upfront cost, longest payback period

Making the Right Choice

• For South Bay:
• Minimum recommendation: 16 SEER (efficient, cost-effective)
• Sweet spot: 17-19 SEER (good efficiency, reasonable cost)
• Consider 20+: If you prioritize efficiency and plan to stay long-term

• Don't just look at the sticker. Consider:
• Installation quality
• System sizing
• Total installed cost
• Available rebates
• Your usage patterns

We help customers understand these trade-offs and choose the system that makes most sense for their situation and budget.