How To Select Air Conditioner For Room?

Written by: Kaushik Jethva

Last Updated: June 21, 2023

hand with remote control directed on the conditioner on the wall
Hand with remote control directed on the conditioner on the wall

As the mercury rises and summer heatwaves become a fact of life, finding respite in the cool confines of your home is essential. But how do you ensure your personal oasis stays at the perfect temperature, irrespective of the scorching heat outside? The secret is in the perfect selection of an air conditioner. Welcome to our comprehensive guide on “How to Select Air Conditioner for Room”.

This blog post isn’t just about explaining the nitty-gritty of cooling solutions, but rather it’s about creating a roadmap that illuminates the path to comfort and chill, right in the comfort of your home. Whether you’re buying your first air conditioner or looking to upgrade, we’ll help you navigate the world of BTUs, energy efficiency ratings, and types of units. So, dive into our icy-cool pool of knowledge and learn “how to select an air conditioner for room” that will become your haven of tranquility during the dog days of summer!

1 Understanding the Basics

Before we delve into how to select an air conditioner for room, it’s vital to understand the basics of an AC unit. At its core, an AC is a system designed to cool, dehumidify, and circulate air in a confined space. It operates by removing heat and humidity from the air, rendering your room cool and comfortable.

There are different types of ACs, like window ACs, split ACs, portable ACs, and central ACs, each suited for different room types and sizes. Understanding their differences and uses can significantly aid your decision when figuring out how to select an air conditioner for your room.

2 Determining the Right AC Size

One of the essential factors when learning how to select air conditioner for room is the unit’s size. The AC unit’s capacity, usually measured in BTUs (British Thermal Units) or tons, directly impacts its ability to cool a room efficiently.

Selecting the right size involves calculating the area of your room in square feet (length x width). Once you have the total area, you can reference the BTU chart for air conditioners. For instance, a room measuring 150 square feet would require a 5,000 BTU AC, while a 450 square feet room needs a 10,000 BTU unit.

However, other factors can influence this estimation. Consider the height of your room, sunlight exposure, number of occupants, and the number of appliances or electronic devices in the room, as they all add to the heat load.

3 Selecting the AC Type

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Different types of air conditioners

After determining the size, the next step in how to select an air conditioner for room involves choosing the AC type that best suits your needs. Let’s briefly discuss the different types.

  • Window ACs: These are compact units designed to cool a single room. They are easy to install and ideal for small spaces.
  • Split ACs: Comprising two parts—an indoor unit and an outdoor unit—split ACs are quieter and aesthetically pleasing. They are suitable for larger rooms or those without windows.
  • Portable ACs: These are freestanding units with flexibility and easy installation. They are ideal for rented spaces or areas where a window or split AC isn’t feasible.
  • Central ACs: These systems cool the entire house using ducts to distribute cooled air. While efficient for large homes, they are costly and may not be practical for cooling a single room.

The type you choose will depend on your specific needs, space constraints, budget, and aesthetic preferences.

Energy Efficiency

When investigating how to select air conditioner for room, energy efficiency is a crucial factor. An energy-efficient AC provides the required cooling while consuming less electricity, leading to lower energy bills. The efficiency of an AC is indicated by the SEER (Seasonal Energy Efficiency Ratio) or EER (Energy Efficiency Ratio) ratings. The higher these ratings, the greater the energy efficiency of the unit.

Noise Level

A noisy AC can be a nuisance. Before purchasing, ensure to check the noise levels, usually mentioned in decibels (dB) on the product specifications. Typically, a quiet AC unit operates at around 50-60 dB.

Additional Features

Modern ACs come packed with additional features like adjustable thermostats, variable speed fans, sleep settings, Wi-Fi compatibility, and more. While not directly related to cooling performance, these features enhance user comfort and convenience.

  • Adjustable Thermostats: This allows you to set your preferred room temperature. Some models come with programmable thermostats that let you set different temperatures for different times of the day, leading to energy savings.
  • Variable Speed Fans: These help in more efficient cooling and energy usage. They also contribute to reduced noise since the fans don’t have to operate at full speed all the time.
  • Sleep Settings: This feature increases the temperature gradually while you sleep, saving energy without compromising comfort.
  • Wi-Fi Compatibility: A smart AC with Wi-Fi compatibility allows you to control your unit remotely through your smartphone. This can be a great convenience feature for many users.

Installation and Maintenance

Another essential aspect of how to select air conditioner for room is considering the installation and maintenance process. Proper installation is crucial for the unit to function efficiently. Improperly installed ACs can lead to increased energy costs and a shortened equipment life. Depending on the AC type, you might need professional help for installation.

Regular maintenance is equally important to keep your AC running at peak performance and extend its lifespan. Check the manufacturer’s recommendations regarding filter cleaning or replacement, coil cleaning, and other maintenance tasks.


Lastly, consider your budget. The cost of an AC unit involves not just the initial purchase price but also installation costs and ongoing expenses like energy costs and maintenance. It might be tempting to go for a cheaper unit, but remember that an energy-efficient model, though costly upfront, can save you more in the long run by reducing energy bills.

4 Wrapping Up

Understanding how to select an air conditioner for room requires a comprehensive consideration of several factors. From determining the right size and type to considering energy efficiency and noise levels, every factor contributes to ensuring you end up with the perfect air conditioner for your room.

Remember that while doing your research, look for trustworthy brands and read customer reviews. After all, an air conditioner is a significant investment, and you want to ensure you’re making a wise decision.

Your quest on “how to select an air conditioner for room” should now feel less daunting. With this guide in your hand, you are well-equipped to make an informed choice. Here’s to a cooler and more comfortable indoor environment!

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About This Article

Kaushik Jethva
Written by: Kaushik Jethva author

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Updated: June 21, 2023
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