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Efficiency is in the Air: A Guide to Choosing Energy-Saving AC for Your Living Space

02-12 2023

If you are getting higher power bills and having inconsistent cooling, this means your air conditioning unit is working harder than it has in the past. Don’t worry, there’s a solution for you! An energy-efficient air conditioning installation will help your unit run more efficiently, lower your monthly power bill, and cool your home to the optimal temperature for the comfort of you, your family, and your friends. Because when your air conditioner is working at a higher degree of efficiency, it does not have to work as hard to chill your home. This means that the equipment will last longer and require fewer repairs over time.

How is energy efficiency determined?

The level of energy efficiency of an air conditioning unit is determined by the unit's SEER (Seasonal Energy Efficiency Ratio.) The SEER Rating indicates how energy efficient the appliance is. The minimum SEER rating for air conditioners is 14, although they can reach as high as 23.

This is something to consider when you’re thinking of purchasing an air conditioner for yourself. The higher the SEER rating, the more energy efficient your unit will be, allowing you to save even more money on cooling expenditures.

What to look for when buying an ideal energy-saving ac for your space?

01. Inverter Technology:

Inverter AC adjusts its cooling capacity based on the temperature inside your room, office spaces or living space. Therefore, enabling a reduction in energy consumption and improving cooling efficiency.

02. Size of the AC for your Space:

When it comes to air conditioners, size matters. A unit that is too large will cool the air yet leave it moist and clammy. A unit that is too small will have to work extra hard to maintain the set temperature, increasing your energy expenditure. The most crucial aspect to consider is the size of the air conditioner.

03. Programmable Thermostats:

Even basic window units now have digital displays that allow you to choose a specific temperature and even plan your AC to turn off when you leave and back on when you return. Central air systems are generally more adaptable.

04. Energy-Saving Settings:

Another feature to look for in the finest air conditioners is an energy-saving mode, which means the unit will switch off not only the compressor but also the fan after your room has cooled, saving electricity.

05. Consider the AC's EER & SEER Ratings:

SEER is for (Seasonal Energy Efficiency Ratio) and assesses an AC's performance over a whole season, whereas EER stands for (Energy Efficiency Ratio) and measures an AC's efficiency under specified conditions. Simply put, the greater your AC's SEER and EER rating, the more efficient it will be and the less energy it will consume.

06. ENERGY STAR® Certification:

While selecting the best air conditioner for your home, look for the blue ENERGY STAR® certification. ENERGY STAR® is a certification that helps consumers identify energy-efficient products, which include ACs, along with other devices.

07. Wifi-Enabled AC:

Consider installing a smart air conditioner if you've begun to experiment with making your house smart—for example, if you have a gadget like Alexa or Google Assistant, or a Wifi-enabled thermostat that you can control with your smartphone. Smart versions of all types of AC units are available, including window, split unit, portable, ductless mini, and so on. Because these devices are so adaptable, the energy-saving options are endless, and you can truly fine-tune your usage.

08. Warranty and after-sales service:

When you decide to purchase air conditioners from the best AC company in Bangladesh, they’ll ensure to provide you with a warranty and after-sales service. This ensures peace of mind knowing that your AC is well taken care of in the event of any problems. Therefore, to make a cost-effective decision you need to look for warranties and good after-sales service.

09. Noise level of the AC:

The noise level of an AC can impact your comfort and quality of life, ultimately contributing to the noise pollution. When you purchase an AC, look for Inverter Technology with low noise levels, or consider installing soundproofing material to reduce the impact of the noise.

What are the ways to maximize your energy-efficient air conditioner?

  1. Cleaning air filters frequently during peak usage is recommended.

  2. Cleaning the outdoor unit to ensure air is flowing properly and efficiently.

  3. Insulation to prevent heat from entering your living space.

  4. Using a programmable thermostat to set specific temperatures for different times of the day.

  5. Sealing air leaks for the optimum performance of your AC.

  6. Upgrading to energy-efficient windows reduces heat gain, which can lower your AC usage and costs.

  7. Frequent maintenance and professional HVAC technician follow ups.

  8. Setting the temperature to 78°F (25°C) or higher when in the room, and 85°F (29°C) when you’re away.

Choose the best Air Conditioner for your chilling comfort

Aside from identifying the right size for your AC unit or technologies, you will also need to determine the ideal type to match your location and cooling requirements. 

For instance, if you live in a hot and humid climate, a split air conditioner is an excellent choice; if you live in a cozy and tiny room, a window air conditioner is the only option.

Let’s look at the different types of ACs to help you guide in choosing your ideal one:

Type of AC

Ideal for


Energy Efficiency


Room AC

Small spaces



Low to moderate

Split AC

Homes with limited indoor space or discreet cooling needs



High to very high

Window AC

Small to medium-sized rooms



Low to moderate

Central AC

Large homes or homes with multiple levels

Difficult (requires professional installation)



Ductless Mini Split AC

Homes without existing ductwork or specific rooms/areas



High to very high

Portable AC

Homes with limited window space or temporary cooling needs




Hybrid AC

Homes that require year-round temperature control

Difficult (requires professional installation)




Choosing or purchasing an Air Conditioner for your space is like making an investment, as it depends on your comfort during heat waves. Furthermore, you most definitely intend to use it for a long time without having any issues. However, as it's a heavy-duty device it sure does impact on your utilities as well.

In this article, we have provided you with enough information to guide you when you’ll choose the right Air Conditioner for your space. It will help you choose which type of AC is right for you, in accordance with your room’s space, overall budget, and how energy efficient it will be.


01. What is a good AC efficiency rating?

In some settings, a higher SEER rating gives greater energy efficiency. The minimum SEER for air conditioners is 13.41, but most current air conditioners have a SEER2 ranging from 13 to 21.

02. What happens if the AC is too big for the room?

Air conditioners that are overly large use more energy, suffer more wear and tear, and simply do not perform as well or as long as a properly sized unit. This can result in increased utility bills, additional maintenance, and discomfort.

03. What are the disadvantages of undersized air conditioners?

A properly sized unit will cycle on and off to regulate the temperature. Undersized air conditioners will struggle to keep the room cool and will thus fail to cycle through healthy on and off cycles. This additional wear and tear will shorten the life of your air conditioner and increase the expense of repairs.

04. Is it good to sleep with AC on?

Sleeping with the air conditioner on helps in the prevention of heat-related disorders such as dehydration, heatstroke, and heat fatigue. Typical AC filters will not purify the air, but they will keep dust and particles out of the unit.

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