What is the EER Energy Efficiency Index?

Energy Efficiency Index EER is one of the important factors of air conditioners or air conditioners. With most air conditioners on the market today, the EER is usually listed on the energy label or on the technical data sheet on the machine. Let’s learn about this index with Tnhelearning.edu.vn in the following article to get a clearer view.

What is the EER Energy Performance Index?

Every air conditioner has an EER energy efficiency rating. This number measures how many British thermal units BTU/h (commonly referred to as BTU) per watt of electricity used.

For residential air conditioners, this indicator is an energy efficiency ratio abbreviated as EER (Energy Efficiency Ratio). For system air conditioners (central air conditioners), this indicator is the seasonal energy efficiency ratio, abbreviated as SEER (Seasonal Energy Efficiency Ratio).

How is the EER Energy Efficiency Index calculated?

The EER of an air conditioner is measured by the ratio of the cooling capacity (1HP or 9000BTU in W) to the power consumed (W). The higher the EER (W/W) rating, the more efficient the air conditioning products are.

We have the conversion:

• 1 HP = 9000 BTU
• 1 BTU = 2.93 W
• 1 W = BTU/2.93

EER = cooling capacity (W)/electrical capacity (W)

EER=(BTU/2.93)/W

In there:

• BTU is the cooling capacity of the machine
• W is the electrical power of the machine

For example, if an air conditioner with a rating of 10,000 BTU consumes 1,200W of electricity, then the EER rating = (10,000BTU/2.93)/1200W) = 2.8

EER is usually only used to evaluate the energy efficiency of conventional air conditioners. Today, inverter air conditioners often use a more accurate energy efficiency rating than CSPF.

What is the CSPF Energy Performance Index?

What are the benefits of the EER index?

Products with a higher EER always come with a higher price tag, so they can save users a lot of money in the long run. For places such as offices, businesses, and places that require equipment to run continuously, the EER index can be promoted for great savings in a short time.

Tnhelearning.edu.vn hopes that with this article, you can know more and better understand the EER energy efficiency index of air conditioners. If you have any questions, leave a comment below!