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29 Apr, 2023
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How To Select The Right Size Air Conditioner For Your Home In Brisbane

As the temperature rises in Brisbane, homeowners ponder buying an air conditioner to keep their abodes cool and cozy.

Yet, choosing the appropriate size of the air conditioner is of utmost importance to maintain energy efficiency and ensure the comfort of your home.

Our blog is here to assist you in selecting the right-sized air conditioner for your Brisbane home. Lux Air Services, a highly recommended provider of air conditioning installation and maintenance services, will help you guide you through the selection process.

If you’re looking for ways to improve the comfort level of your home, it’s crucial to consider the right air conditioning system.

Choosing the appropriate size for your residential air conditioner in Brisbane can make all the difference.

A unit that’s too large may consume more energy than necessary, while a smaller one might not provide sufficient cooling. By selecting the ideal size, you can enjoy maximum cooling and energy efficiency, ensuring your home is a comfortable haven throughout the year.

Measure The Size Of Your Room.

Before deciding which air conditioner to purchase, it’s essential to determine the appropriate size for your space.

This means measuring the length and width of your room and then multiplying those numbers to calculate the total square footage. For instance, if your room measures 10 feet by 15 feet, the square footage would be 150 square feet. Once you have this number, you can confidently choose an air conditioner suitable for your needs.

Determine The Cooling Capacity Required.

Once you have calculated the size of your room, it is essential to determine the appropriate cooling capacity for your air conditioning unit.

The cooling capacity is typically measured in British Thermal Units (BTUs) per hour, with the general rule of thumb being to use around 20 BTUs per square foot of the room.

For instance, if your room measures 150 square feet, you need an air conditioner with a cooling capacity of 3,000 BTUs per hour. However, it is essential to consider other factors that could affect the cooling capacity required, such as ceiling height, insulation quality, and the number of windows.

It is always a wise decision to seek the advice of a professional to ensure that you make the right choice for your specific needs.

Consult a professional

If you want to purchase an air conditioner for your Brisbane home, it’s essential to consider various factors affecting its cooling capacity.

Consulting with a professional installer, such as Lux Air Services, can help you make the right decision. A professional can consider the size of your space, the number of occupants, and the amount of natural light it receives to recommend the optimal brand and model based on your budget and preferences.

With their expertise, you can feel confident that you’ll select an air conditioner that will keep you cool and comfortable all year round.


Improving the efficiency of your home’s cooling system can be achieved through proper insulation. This creates a controlled environment where the temperature remains consistent, allowing you to use a more robust and smaller air conditioner than you would with an uninsulated space.

In Australia, homes may have either wall or ceiling insulation or both, which can play a crucial role in determining the appropriate size of your air conditioner. Depending on location and window orientation, an air conditioner with the minimum recommended kW may cool an insulated room.

Insulation should be noticed when considering ways to enhance the performance of your cooling system. By maintaining a semi-sealed environment, you can make the most out of your air conditioner’s capabilities and improve the overall comfort of your home.


The elements that enter a room through its windows can significantly impact the temperature.

During sunny days, the warmth from the sun can penetrate the glass and make the room feel hotter than it is.

Alternatively, the cold air can seep through the window on chilly mornings and create a chilly atmosphere. Therefore, windows play a crucial role in regulating the temperature within a room.


When finding the perfect air conditioner for your home, it’s crucial to consider the altitude and location of your residence.

The weather in Australia varies greatly, spanning from hot rural regions to frigid mountainous areas. Selecting an air conditioner that can effectively control your home’s climate is vital.

Depending on the temperature outside, your air conditioner may need to work harder to keep your living space comfortable. In areas with extreme weather, you may require a more robust air conditioner model that can handle external temperature changes.

Contact Brisbane's Professional Air Conditioning Contractors

Investing in residential air conditioning in Brisbane is a wise decision that can yield long-term benefits.

To ensure optimal performance and efficiency, selecting an air conditioner that is the right size for your house is essential.

As such, it is advisable to consult seasoned air conditioning contractors in Brisbane with years of industry experience, such as us at Lux Air Services.

Rather than solely relying on the recommendations of others, make an informed decision by reaching out to Lux Air Services today for expert advice.
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