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What is the EER for an AC? What does it mean and why is it important?

By Finserv MARKETS - Apr 3,2019
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What is an EER for an AC

The amount of energy consumed by your home air conditioner (AC) can determine your end-of-the-month utility bill. Therefore, if you are looking to purchase a new unit, its energy-efficiency should be an important factor to consider. The efficiency of a room air conditioner is estimated as per the Energy Efficiency Ratio (EER). It is measured as a ratio of the rate of cooling production in British thermal units (Btu) per hour to the energy output at regular grade forms. Simply put, it is the ratio of the output (capacity) to the power input. Therefore, if an AC has a higher EER, it is considered to be a more effective energy-efficient variant. The ratio is calculated as the cooling ability and is also denoted in Watts (one Btu per hour is the equivalent of 0.293 Watts). Therefore, the best way to show the EER is as Watts/Watts or without any units.

Let us take an example to demonstrate the method of calculation. If you have an AC unit with a 12,000 Btu and it consumes 1,200 watts of electricity, the EER rating on the Energy Guide Label will be 10.

Who creates the EER rating?

The EER is one of the standard systems used in the HVAC industry to denote the energy-efficiency of an AC model. Every domestic single phase, non-ducted AC has to participate in the Energy Star labelling programme that indicates the EER rating for room ACs. Manufacturers of ducted systems could participate voluntarily in the programme, but it is not mandatory for them to receive the rating. You can find the EER rating on the Energy Guide label on your AC and view its energy efficiency performance on the GEMS registration database. The AEER is the annualised version of this metric. It denotes the same concept but deducts the standby power in the calculation. The Energy Rating Comparison Tool available on the portal gives you information on the power input and output for all ACs including any unlabelled ones. You can use the tool to compare different models with higher or lower EER or AEER. For the non-ducted household ACs, you can view the information on the Energy Guide Label itself.

What are the benefits of the EER rating?

The EER denotes the capability of your home air conditioner to provide maximum cooling comfort with lesser units of energy. An AC with a higher EER rating can enable you to save money on electricity bills in the long run. With the right knowledge on a product’s energy-efficiency capabilities, you can compare the different systems and models in the market. As a smart consumer, you can reap the long-term financial benefits of selecting a more efficient product. The following benefits are associated with a high EER-rated model-

  • Savings on electricity bills: With comparatively low energy consumption, products with a higher EER rating generate significant energy savings. This impacts your utility bills each month.
  • Enhanced cooling: An AC with a high EER comes with better technology and design for enhanced cooling comfort.
  • Low carbon footprint: The units with a higher EER are manufactured with eco-friendly components such as the ozone-friendly refrigerant.
  • Minimum maintenance cost: The unit is a better investment option due to its durability. An AC with a high rating is less prone to system malfunctions and breakdowns.

It is prudent to invest in an AC with a higher EER rating due to its guarantee of superior performance without the burden on your savings. A unit with a high EER integrates better technology and is more durable and eco-friendly. The AC pays for itself in the long-term due to lower energy bills. However, an AC with a higher rating can be more expensive than the ones with lower ratings. With online portals such as the EMI store on Finserv Markets, you can access financing options including EMIs with zero down payment. The stores can even deliver on the same day to make the buying process more convenient. Before you make a decision on your new AC, you should compare the latest AC brands and models available online and check the reviews for each offering. Finserv Markets can help you browse through the top-AC brands in the industry with ease and detailed information on their benefits including EER ratings.

 

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