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How to Choose the Right Sized Air Conditioner for Your Space

How to Choose the Right Sized Air Conditioner for Your Space

We all know how important it is to have the perfect air conditioner that cools your space just right. Nobody wants to be sweating buckets or shivering like a popsicle! Plus, selecting the wrong-sized AC can lead to inefficient cooling, skyrocketing energy bills, and unnecessary expenses. So, before you call in the aircon installation service, let’s embark on a journey to discover how to choose the ideal AC size for your needs.

Understanding BTUs

First things first, let’s demystify the term “BTU.” BTU, or British Thermal Unit, is the unit of measurement that determines the cooling capacity of an air conditioner. The higher the BTU, the mightier the cooling power! So, how do you determine the right BTU for your space? It’s easier than you think!

Calculating the Right BTU

Finding the perfect BTU for your air conditioner is like cracking a code. Begin by taking the size of your space into account. Arm yourself with a trusty measuring tape and record the length, width, and height of the room you’re looking to cool. Multiply these numbers together to get the cubic footage. Once you have that, match it to the recommended BTU range for your space. Here’s a quick cheat sheet to get you started:

  • Up to 150 square feet: Look for an AC unit with around 5,000 to 6,000 BTUs.
  • 150 to 250 square feet: Aim for approximately 6,000 to 8,000 BTUs.
  • 250 to 350 square feet: Think about a cool 8,000 to 10,000 BTUs.
  • 350 to 450 square feet: Consider a unit with 10,000 to 12,000 BTUs.
  • 450 to 550 square feet: Go for 12,000 to 14,000 BTUs to keep it chill.
  • 550 to 700 square feet: Look for an air conditioner with 14,000 to 18,000 BTUs for some serious cooling power.
  • 700 to 1,000 square feet: If you’ve got a larger space, shoot for 18,000 to 24,000 BTUs.

Extras to Keep in Mind

While the size of your space is crucial, there are a few other things to keep in mind when choosing the right air conditioner size. These include insulation, sun exposure, and the number of occupants. Here’s a checklist to help you out:

  • Insulation: If your room has poor insulation or receives a lot of direct sunlight, you may want to consider bumping up the BTU requirement by 10-20% for optimal cooling.
  • Windows: Large windows and south-facing rooms tend to get more sunlight, prompting some extra cooling love. Add an extra 10% to the BTU calculation for these sun-soaked spaces.
  • Occupancy: Are you planning to fill your room with friends and family? If so, go a bit bigger to handle the extra body heat and keep everyone feeling fresh.

Call in the Pros

If you’re still not sure, don’t sweat it! We’re here to help at Affordable Aircon. Feel free to reach out to any of our friendly professionals who can lend their expertise. They’ll conduct a detailed assessment of your space, consider all the relevant factors, and provide you with expert advice on the appropriate AC size for your needs.


Now that you have the lowdown on choosing the right size air conditioner, you’re ready to conquer the Singapore heat! Remember to measure twice, consider insulation and sun exposure, and opt for energy-efficient models. Take the time to evaluate your cooling needs and enjoy a comfortably cool home all year long.

At Affordable Aircon, we’re here to help you beat the heat. Explore our aircon servicing and installation services and let our expert team guide you towards the air conditioner of your dreams. With unbeatable prices, top-notch customer service, and a wide range of cooling options, we’re your one-stop shop for all things cool. Explore our website today and experience the joy of affordable comfort.

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