Blue Metropolitan Van parked on the side of the road.

All You Need to Know About Window Air Conditioners

Do you need to chill in a small room or open space without breaking the bank? Window air conditioners are an effective and reasonably priced option.

Compact in size, they can easily cool spaces up to 50 square meters (m²) efficiently. This guide will teach you how to pick the suitable unit for your home this year. Proper installation also ensures it operates correctly for years ahead by identifying key components such as cooling capacity, energy efficiency, and essential features.

So, what makes window ACs (aka wall air conditioners) great choices economically speaking? They are not only affordable but offer quick and easy installation too, making them ideal solutions, especially if you’re renting.

And just like any purchase decision, there are plenty of options available on the market today – but that’s why we’re here: guiding our readers through factors such as room size (and other needs) towards choosing their perfect fit when it comes down to buying one of these units meant for keeping homes cooled off efficiently yet affordably at once.

Understanding Window Air Conditioners

Window-wall air conditioners offer efficient cooling for small areas, such as rooms measuring 50m² or less. They offer a more budget-friendly choice than split systems and window wall units because they don’t require permanent installation, and a single unit contains all their components.

These components, including a compressor, condenser, evaporator, expansion valve, fan, filter, control panel, thermostat, drainage system, and housing, are all compactly integrated into the same device.

When you’re in the market for a window air conditioner, it’s crucial to consider factors like its energy efficiency rating, noise level, temperature control capabilities, filtration features such as timers and remote controls, and any additional benefits offered by trusted brands.

While cost will always play a role in your purchasing decision, both in terms of the initial price and long-term savings from efficient usage, it’s essential to prioritise your specific needs when choosing the right solution from the available options, whether it’s wall air conditioning systems or more advanced window walls with built-in climate control technology.

Components and Features

Designers have created window air conditioners to cool a room efficiently. These systems consist of four essential components: the compressor, condenser, expansion valve and evaporator, each playing a vital role in transforming heated into cooled air before circulating it back through the space.

When selecting your window AC unit, compare all available features, including energy-efficient settings for electricity savings and advanced temperature control options or remote controls for added convenience and improved indoor air quality. Prioritise those that best suit your needs so they satisfy you entirely.

The ideal model should integrate cooling capabilities with other valuable features like heat filtration options, allowing it to adapt to specific environmental requirements as needed.

window air conditioners

Benefits of Window Air Conditioners

Window air conditioners offer great benefits due to their relatively low cost compared to other AC systems. They can be installed easily and quickly in any household without extensive work, which is a bonus. These units are also relatively small, so they fit into areas with limited space, such as smaller rooms or open layouts.

Numerous advantages come with window air conditioning, including localised cooling, energy efficiency, adjustable temperature settings (for excellent/de-humidification purposes), easy maintenance and storage options if needed seasonally. It makes them ideal for people who want something affordable yet effective at combating heat waves.

They deliver the goods on heating and cooling and there’s a decent range to choose from. For these reasons, among others, it’s no wonder why more and more individuals have turned towards this type of system over the years. It allows them to enjoy pleasant temperatures without worrying about breaking their bank accounts.

Selecting the Right Window Air Conditioner for Your Space

Choosing the perfect window air conditioner for your space requires considering various factors.

Consider room size, cooling capacity requirements, window type and compatibility, noise level, and additional features when selecting an air conditioner. Given that these box air conditioners are often budget units, you might find some special offers at a discount store or reputable dealer.

Please consider its energy efficiency rating along with the ZERL label & savings when selecting one from all available options on the market.

Don’t forget about the manufacturer’s warranty, too, while opting out an AC unit, among other things like installation process and maintenance – both are necessary steps that would help ensure long-term use of this device at optimal performance levels, thus saving you money on bills over time if done right.

To assist users during selection, we aim to provide information regarding these elements so they can pick their ideal air conditioning system, considering every detail thoroughly up front for a successful setup afterwards.

Assessing Room Size and Cooling Capacity

When selecting a wall air conditioner, it’s essential to calculate the room’s square footage by multiplying its length and width.

With this information, you should choose an appropriate cooling capacity measured in British Thermal Units (BTUs) or watts that corresponds with your space size.

The following is a recommended capacity guideline according to area:

  • Up to 46m² (150ft²) – 5000 BTU
  • 46-76m² (150-250ft²) – 6000 BTU
  • 76-91m² (250-300ft²) – 7000 BTU
  • 91-107m² (300-350ft²) – 8000 BTU

Exceeding these measurements may require multiple appliances for practical use. Still, consider other factors, such as insulation levels and the number of windows, when picking the ideal solution for efficient cooling performance in any room.

Energy Efficiency and ZERL Label

The creators developed the Zoned Energy Rating Label (ZERL) to help consumers make well-informed comparisons among similar window air conditioners. It considers regional and seasonal weather variations that impact energy efficiency.

Familiarising yourself with and employing this label when acquiring a unit tailored to your requirements can result in long-term cost savings on your electricity expenses.

Also, consider looking at an AC’s EER rating and its Energy Star score – models with high ratings are more cost-effective options that reduce utility costs while helping the environment too.

Additional Features to Consider

It is essential to evaluate the features provided by different models of window air conditioners and select those that best fit your requirements.

Those units usually have programmable thermostats, air quality functions, remote controls, filter indicators and advanced technological solutions, all implemented to elevate your comfort level when using a cart.

Check noise levels and cooling capacity while comparing various systems so that you can pick an AC unit correctly to cool while making minimal sound pollution. Considering this will ensure finding the right window air conditioner that fits perfectly with your needs.

Regular Cleaning and Maintenance

A window air conditioner’s cleanliness and routine upkeep are essential to ensuring its consistent effectiveness. An important aspect to take care of is the filter that collects dust and dirt particles, which should be attended to by either shaking it off, using a vacuum cleaner or rinsing with water from the kitchen tap.

There are seasonal examinations and other maintenance procedures for your air conditioning unit, such as cleaning condenser coils, clearing humidifier drains, and inspecting seals and gaskets. Lubricating operational parts is necessary to preserve maximum efficiency levels while preventing potential damages if neglected over time.

window air conditioners

What is the Maximum Area a Window Air Conditioner Can Cool Effectively?

You can easily install window air conditioners, and they offer an excellent, cost-effective solution for cooling spaces of up to 50m² or smaller.

They are ideal for those who want something other than the cost of installing central AC. Plus, they offer energy efficiency while still delivering reliable temperature control.

What are the Drawbacks of a Window AC?

Window-wall air conditioners present a variety of drawbacks, making them an imperfect choice for many homeowners. The placement of such air conditioning systems makes it difficult to guarantee security due to their visibility and access. They typically only fit specific window sizes and need easy access to power outlets, resulting in difficulties during installation.

Water drainage from these models can be inefficient and often create aesthetic issues with outside appearance – all without being sound-efficient either. All these expenses add up due to the pricey purchase fees and high operational costs on top of regular maintenance that must occur after completing the installation.

Other options are available instead of opting out for Window AC units, which could provide users more convenience while avoiding the risks associated with such products.

Install Your Window Air Conditioner Now

To choose a perfect window air conditioner for you in 2023, consider several components at the end of your journey. These can include energy efficiency, room size, and additional features such as cooling capacity. In contrast, other brands offer choices suitable for various needs or preferences, ensuring optimal comfort during any season.

Contact professionals and experts at Metropolitan Air Conditioning for their service in South Australia, Victoria, NSW, Queensland and WA if you want help with your window air conditioner installation.

To give customers complete peace of mind when making this decision, we have provided comprehensive information so they can pick out what works best based on their particular wants and requirements – enabling individuals’ living spaces to be relaxed yet cosy every day of the year.

Please note: This information is provided for advice purposes only. Regulations differ from state to state, so please consult your local authorities or an industry professional before proceeding with any work. See our Terms & Conditions here.

Published: 2023-09-21

Air Conditioning Specialists You Can Trust

Our Promise Going Further

Our specialists pride themselves with honest reliable services


Our fixed pricing structure guarantees transparency. You will always be quoted the complete costs before work can commence, and our expert technicians will guide you through the process.

Our specialists pride themselves with honest reliable services


Not all jobs are created equal, but all jobs are equally important. Whether it's a simple repair or ducted air conditioning install, we apply the same high levels of dedication and service no matter the scope of the work.

Professional Expert Technicians


Home is your castle. Your pride and joy. Our well-spoken technicians will show respect towards you and your property and always clean up after themselves.

Technician Zip Pay Payment Options Image
Technician Zip Pay Payment Options Image

Now Available!

Air Con finance options** with trusted pay later options

What Our Happy Customers Have to Say

Better service starts here

5 stars rating

I called them in the morning, and they were at my doorstep within a few hours. The technician was quick to identify the problem, had the necessary parts, and repaired my AC unit in no time.

Marion Minguillon - WA
5 stars rating

My AC was acting up, and I was worried about a hefty repair bill. However, the technicians quickly identified a minor issue, fixed it, and didn't overcharge me. I appreciate their honesty and expertise in troubleshooting the problem.

Sara Cribbs - VIC
5 stars rating

Thorough filter cleaning left no room for concerns, resulting in cleaner air and AC that requires less maintenance. Our home's air quality has improved dramatically, and we couldn't be happier with the outcome.

Lorenzo Rodriguez - SA
  • Mitsubishi Heavy Industries Air Conditioning Logo

    When looking for a leading supplier of wall mounted split systems, Mitsubishi Heavy Industries air conditioners offer reliable, high-quality heating and cooling perfect for Australian family homes.

  • Temperzone Air Conditioning Logo

    Temperzone is the award-winning global manufacturer of air conditioners and leaders in climate innovation with a wide range of systems suitable for Australian homes and commercial applications.

  • Bonaire Air Conditioning Logo

    Bonaire heating and cooling systems are economical, yet high performance. Their reliable air conditioners are manufactured in Adelaide and expertly designed to withstand year-round weather extremes.

  • ActronAir Air Conditioning Logo

    For incredible home comfort, you want ActronAir. Ducted systems or wall hung splits, ActronAir air conditioning has the best residential cooling solutions. You'll never complain about the heat again.

  • Celair Air Conditioning Logo

    Celair is a leader in ducted evaporative air conditioning with over 40 years of experience behind them. Manufactured right here in Australia, Celair heating and cooling supports local Australians too.

  • NEC Air Air Conditioning Logo

    Beat the heat with a NEC split system. NEC has a heating and cooling solution that will keep you comfortable in all seasons. Experience superior energy efficient heating and cooling with NEC.

  • Coolair Air Conditioning Logo

    As an Australian owned and operated manufacturer, Coolair evaporative air conditioning makes a great high performance companion for anyone looking to escape the harsh heat of our great southern land.

  • Sanyo Air Conditioning Logo

    Sanyo air conditioning models were known for providing trusted AC performance. Although Sanyo no longer operates, Metropolitan can still offer expert 24/7 service to your existing Sanyo system.

  • Fujitsu Air Conditioning Logo

    Stay comfortable all summer long thanks to Fujitsu air conditioning. Fujitsu ducted air conditioning units are perfect for Aussie homes so when you need repairs or servicing, call Metropolitan.

  • Sharp Air Air Conditioning Logo

    With over 100 years in the industry, Japan’s Sharp Air Conditioning is known for luxury products. Sharp air cons provide convenient and effective cooling performance, to deliver year round comfort.

  • Hitachi Air Conditioning Logo

    Are you ready to discover the incredible range of Hitachi air conditioners? We’re talking split systems, wall mounted, ducted heating and cooling and more. So plenty of options for achieving comfort.

  • Stadt Air Conditioning Logo

    STADT air conditioning is synonymous with high quality Australian owned ducted heating and cooling. For any STADT air conditioning service and repair, we are your Australian experts.

  • Haier Air Conditioning Logo

    With over 30 years in the industry, Haier is known internationally for its energy efficient and smart heating and cooling solutions. Haier heating and cooling is just a tap away.

  • Vulcan Air Conditioning Logo

    When you're after a Vulcan air conditioning service, you want Metropolitan. We're experts in Vulcan climate control, providing repairs and servicing for air conditioners.

  • Kelvinator Air Air Conditioning Logo

    Australians have enjoyed Kelvinator's cooling reliability for over 80 years. Whether you have a Kelvinator window air conditioner or Kelvinator split system, Metropolitan is here to help 24/7.

  • York Air Air Conditioning Logo

    For optimal year-round comfort from your AC unit, York is the name to know. Distributed by Bonaire, York air conditioners Australia offer superior AC solutions perfect for our Australian climate.

  • Lennox Air Conditioning Logo

    Lennox is a globally recognised brand with a great range of energy-efficient HVAC systems. Choose a Lennox air conditioner when craving that desirable climate control and year-round comfort.

  • LG Air Conditioning Logo

    LG is a world leader in consumer electronics, and its air conditioners are no different. From smart split systems to energy efficient ducted air conditioning, LG air conditioning does it all.

  • Midea Air Conditioning Logo

    Midea is an Australian giant with an international reputation for quality split system air conditioning. You can also find portable coolers and window boxes among the Midea air conditioner range.

  • Mitsubishi Electric Air Conditioning Logo

    Mitsubishi Electric supplies premium residential air conditioners in Australia. Their sophisticated designs, including their sleek wall split system models, are built to offer long-term comfort.

  • Panasonic Air Conditioning Logo

    The latest and greatest Panasonic air conditioners go beyond heating and cooling with air purifying features for healthier breathing. Sounds good, doesn’t it?

  • Rinnai Air Conditioning Logo

    Rinnai is a trusted household name in all things heating and cooling. From the Rinnai gas heater to inverter splits and reverse cycle ducted systems, there's a Rinnai solution for every Aussie house.

  • Samsung Air Conditioning Logo

    Samsung Air Conditioning is known for its reliability and performance. These efficient climate systems are as highly regarded as Samsung’s TVs, home appliances and popular Galaxy smartphones.

  • Brivis Air Conditioning Logo

    Brivis by Rinnai has been a titan in the air conditioning game for 50 years. With an impressive heating and cooling system range, the Brivis name goes hand in hand with quality and longevity.

  • Braemar Air Conditioning Logo

    Braemar has all your heating and cooling needs sorted. Evaporative cooling, ducted gas heating, space heaters, wall heaters, split systems and reverse cycle - Braemar has you covered year-round.

  • Carrier Air Conditioning Logo

    The Carrier air conditioning range is known for sustainability and affordable prices. As a leading Australian AC supplier, Carrier strives to improve the industry through innovative cooling solutions.

  • Breezair Air Conditioning Logo

    Are you after a market leader in evaporative cooling? You need Breezair. Breezair evaporative coolers are manufactured in Australia so you know you're getting cooling to stand the Aussie heat.

  • Kaden Air Conditioning Logo

    Simple solutions are the foundations of Kaden heating and cooling. Products like the Kaden split system are perfect for the ever changing Australian climate so you can always remain content at home.

  • Toshiba Air Conditioning Logo

    Toshiba air conditioning makes use of innovative DC Hybrid Inverter technology which automatically provides high capacity heating and cooling when necessary and minimises running costs when it’s not.

  • TECO Air Conditioning Logo

    TECO has been heating and cooling Australian homes for over 30 years. With split systems, multi splits, window/wall air conditioners and ducted air conditioning, TECO has the whole home covered.

Metropolitan Air Conditioning Service Reviews Metropolitan Air Conditioning Service Reviews