This calculation is done by HVAC engineers we only have EER100%.
To calculate SEER from EER rating, we have to use this SEER equation: SEER stands for Seasonal Energy-Efficiency Ratio or Seasonal EER.ĮER rating is simply calculated by dividing the cooling output (in BTU, or British Thermal Units) with the maximum power draw (wattage).Įxample: 30,000 BTU AC units that have a maximum power input of 3,000 W have an EER rating of 10.Ĭalculation: EER = 30,000 BTU / 3,000 W = 10. The SEER rating is based on the EER rating. How Do You Calculate Air Conditioner SEER? You can freely use this SEER energy-savings calculator to calculate AC energy consumption for any unit with up to 5-ton capacity and SEER rating between 10 and 25. You can see that this 2 ton (24,000 BTU) ductless mini-split air conditioner costs less than $200 per year to run ($190/year to be exact). Mini-split example: How much does it cost to run an extremely energy-efficient 22 SEER rated 24,000 BTU ductless mini-split AC unit? Let’s use the SEER savings calculator to answer this: This calculator is often used as a mini-split energy consumption calculator essentially you can use it as a mini split SEER savings calculator. If you input 2 different SEER ratings, you can see how yearly electricity costs change accordingly. *In the SEER savings calculator, we predispose 1000 running hours per season/year and $0.1319 kWh cost. Just input cooling capacity (in BTU 1 ton = 12,000 BTU) and SEER rating: You can use this handy SEER savings calculator to calculate how much electricity will an AC unit with a specified SEER rating and tonnage cost: SEER Savings Calculator We will explain how do you calculate air conditioner SEER further on.
You save about 7% per 1 SEER on electricity costs. Per 20 years: $2.029,6 electricity savings.Per 10 years: $1.014,80 electricity savings.Per 1 year: $101,48 electricity savings.In short, 20 SEER AC unit is 43% more energy-efficient than 14 SEER AC unit.
Total 14 SEER electricity cost = 2,570 kWh * $0.1319 per kWh = $338,72/year.Ģ0 SEER rated AC unit is powered by 36,000 BTU / 20 SEER = 1,800W running it for 1,000 hours will spend 1,800 kWh. Solution: 14 SEER rated AC unit is powered (average seasonal wattage) by 36,000 BTU / 14 SEER = 2,570W running it for 1,000 hours will spend 2,570 kWh. How much more efficient is a 20 SEER vs 14 SEER? Let’s take into account the average natural electricity cost of $0.1319 per kWh, and 1000h of AC use per season. One has a 14 SEER rating and the other has a 20 SEER rating. First, however, let’s look at one example:Įxample: We have two 3 ton (36,000 BTU) central air conditioners. To see exactly much you can save by choosing an air conditioner with a higher SEER (above the federally mandated minimum of 14 SEER), you can use the SEER savings calculator below. Higher SEER rated AC units can save you $1,000s over the next 10-20 years in electricity bill savings. 1 factor when choosing an air conditioner.
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