Calcolatore Efficienza HVAC — Formula

How to Calculate HVAC Efficiency Savings

HVAC efficiency ratings tell you how much cooling or heating you get per unit of energy.

Key Ratings

  • SEER (cooling): Higher is better. Minimum is 14-15, high-efficiency is 18-25+
  • AFUE (gas heating): Percentage of fuel converted to heat. 80% to 98%
  • HSPF (heat pump heating): Higher is better. 8-13

    • Formula

    New Cost = Old Cost * (Old SEER / New SEER)

    Savings = Old Cost - New Cost

    Esempio Risolto

    Upgrade from SEER 10 to SEER 18 AC with $800/year cooling costs and $6,000 upgrade cost.

    1. New cooling cost: $800 * 10/18 = $444
    2. Annual savings: $800 - $444 = $356
    3. Efficiency improvement: (1 - 10/18) * 100 = 44.4%
    4. Payback: $6,000 / $356 = 16.9 years