SEER Formula:
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SEER (Seasonal Energy Efficiency Ratio) is a measure of air conditioning and heat pump cooling efficiency. It represents the total cooling output in BTUs divided by the total energy input in watt-hours during a typical cooling season.
The calculator uses the SEER formula:
Where:
Explanation: SEER measures how efficiently an air conditioning system operates over an entire cooling season, taking into account varying temperatures and operating conditions.
Details: Higher SEER ratings indicate better energy efficiency, which translates to lower electricity bills and reduced environmental impact. Modern standards require minimum SEER ratings for new AC units.
Tips: Enter the total cooling output in BTU and total energy input in Wh. Both values must be positive numbers greater than zero for accurate calculation.
Q1: What is a good SEER rating?
A: SEER ratings typically range from 13 to 25+. A rating of 14-16 is standard efficiency, 17-21 is high efficiency, and 22+ is ultra-high efficiency.
Q2: How does SEER differ from EER?
A: SEER measures seasonal efficiency under varying conditions, while EER (Energy Efficiency Ratio) measures efficiency at a specific temperature (95°F).
Q3: Why is SEER important for consumers?
A: Higher SEER units cost more upfront but save money on energy bills over time. The payback period depends on local climate and electricity rates.
Q4: What factors affect SEER rating?
A: Compressor technology, coil design, fan motors, refrigerant type, and overall system design all contribute to the SEER rating.
Q5: Are there minimum SEER requirements?
A: Yes, in the United States, the minimum SEER requirement varies by region, typically ranging from 13 to 15 SEER depending on the climate zone.