14 SEER vs 13 SEER HVAC: Cost Savings & Efficiency Breakdown
SEER stands for Seasonal Energy Efficiency Ratio; 14 SEER ACs squeeze 14 units of cooling from each watt-hour, while 13 SEER units deliver 13, making the former roughly 7–8 % more efficient. Homeowners mix them up because the numbers feel close and flashy “13” discounts tempt buyers. Contractors may pitch either based on stock, so…