Construction & Architecture / Energy & HVAC
Air Conditioner Efficiency Savings Calculator
Older units: 8-10 SEER, 2000s: 10-13 SEER, Modern minimum: 14 SEER
Standard: 14-16 SEER, High-efficiency: 18-20 SEER, Premium: 20-25 SEER
Typical: 800-1,200 hours/year (varies by climate)
US average: $0.14/kWh (check your utility bill)
Understanding SEER Ratings
SEER (Seasonal Energy Efficiency Ratio): Measures cooling output divided by energy input. Higher SEER = more efficient = lower operating costs.
SEER Rating Guide:
- 8-10 SEER: Very old units (pre-1990s)
- 10-13 SEER: Older units (1990s-2000s)
- 14-15 SEER: Minimum for new installs (federal standard)
- 16-18 SEER: High efficiency, good value
- 19-21 SEER: Very high efficiency
- 22+ SEER: Premium, highest efficiency
Is Higher SEER Worth It?
- 16 SEER is the "sweet spot" for most homes
- 18+ SEER makes sense in hot climates with high usage
- Each SEER point costs ~$200-300 more upfront
- Payback depends on usage, climate, and electricity rates
Tip: Don't just look at SEER. Also consider proper sizing, installation quality, and duct sealing for maximum efficiency.
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