What Size Split System Do I Need?

Are you exploring the web asking “What size split system do I need?” This article is for you! When shopping for an air conditioner, you should consider more than just the price and brand. There are many other important factors to look at, including size.

It is why it’s essential to know the size of your appliance. The cooling capacity, or wattage as some may refer, can be measured in kW and determines how big an area you’ll need for proper ventilation with this particular air conditioner model before purchasing one.

The efficiency of an air conditioner is dependent on the room size. This guide will help you determine what type of split system you need and how to calculate the right air conditioner size for your room.

Why Does Split System Size Matter?

It’s easy to get caught up in the excitement of buying an air conditioning unit, but it is essential to consider the right system size for your room. For example, a home with only one small bedroom will not require as much cooling power. Therefore, larger capacity units can be costly and wasteful if they aren’t needed.

The size of the split system is crucial to consider when installing. A unit that’s too big for an area will waste power, while one that isn’t wide enough can struggle with heating or may result to air conditioners not blowing cool air in your room which could add more money to monthly bills.

Poor installation can cause your air conditioner to leak water, especially if pipes aren’t elevated correctly.

However, buying an air conditioner that’s too cheap or big can be costly. In addition, you want your new appliance to be able to handle all the tasks you throw at it- especially when its job is just cooling down your home.

A suitable air conditioning unit for your home depends on the size of the room you want to cool. If it’s just one or two rooms, choose a smaller capacity model that uses less energy and keeps costs lower.

Let’s delve deeper into why split-type size matters most when purchasing an air conditioner:

Comfort

Ensuring that your rooms have the right size air conditioner means that you can efficiently set air conditioner temperature in summer and winter in a consistent manner. The consistency of the temperature leads to more comfort in your home.

Wear and Tear

The lifespan of your HVAC system is shortened when it’s constantly on and off. For example, an oversized air conditioning unit only runs for a short time because they have to cool the house quickly before shutting down again so as not to overheat or discomfort anyone inside.

Your home is more likely to have an air conditioning unit that needs repairs or replacement sooner rather than later if it needs to be sized correctly. Remind yourself and your family to avoid treating your air-conditioner like your television which you can turn on and off anytime you want.

Cost

An oversized air conditioner is not only expensive but also costs more to run and could need repairs soon.

Air-quality Indoors

The size of your air conditioning unit can affect how clean the indoor environment is.

When you have a larger-than-needed system, it will run for shorter periods which is less beneficial because, during those times, there’s no way to filter out dirt and other particles from entering our living space compared to the right-sized one.

Indoor air quality is an important topic and one that’s often overlooked. Indoor pollution can be just as bad for your health (and lead to serious hospitalisation) as outdoor particulate matter like dust storms or pollen counts.

Remember that indoor air quality is essential for your health. Read this guide from The United States Environmental Protection Agency for more information.

Split System Air Conditioner Size Calculation Guide

How To Calculate The Required Split Size?

The most vital information you need to know about cooling or heating your space is how big it will be.

To calculate the floor space, multiply your room’s length by width. Considering exceptionally high ceilings, include them in this calculation. Still, for most rooms, you can multiply their measuring tape into two dimensions – height and breadth (length x width).

The range of air conditioning units is vast, with options for every household. There’s a unit perfect for you depending on how many people live in it and what they need to cool down during hot weather- from 1 kW window box models up to 9+ kW reverse cycle split systems.

It’s essential to have a suitable cooling capacity for your home. A good rule-of-thumb is 1 to 1.5 kilowatts per 10 square metres (or about one halfway decent-sized air conditioner). You can use this split system size calculator if you doubt yourself calculating it on your own.

The Australian climate is hot and humid, which makes it difficult for homeowners to stay cool without air conditioning. In addition, the minimum capacity of your home’s cooling system will only get you started if it’s well-insulated. However, those living in inclusively built or hotter regions need a more powerful unit like a split system (which also provides heating).

Split System Size Recommendations By Room Size

What size split system do you need? There’s no better way to find out how much air conditioning your home needs than by measuring the size of each room in terms of feet squared. The list below will give you an idea of what type and size system would work for any shared space.

What is the right choice for your home? With so many options, knowing which one will work best is hard. But if you’re looking at spaces between 65 and 80 square metres, around 8kW split system room size will be more efficient.

The perfect choice for rooms measuring 30-45 square metres. Suppose you have large bedrooms with en suite, a mid-size lounge, or an expansive kitchen. We recommend going up to 5kW split system room size.

What size of a split system is best for 20-30 square metres? Homes in Western Australia typically measure around this distance. A 3.5 kW split system room size would be sufficient for homes with large lounges.

There are various options for those who need to stay cool in smaller rooms. Ten square metres or less 2.5kW split system room size works well for bedrooms, kitchens, and lounges.

If you live in a 45-50 square metre home with an open floor plan, the best size for your system will be 7.1 kW split system room size. It is because of its large capacity and low energy consumption compared to other dimensions that it can provide similar functionality at less cost or space requirements per unit of output power.

Measuring Your Room For The Ideal Split System Size You Need

How To Measure Your Room Properly

Know your AC needs. If you want to buy an air conditioner for the space, ensure it has enough power. How to determine the size of a split system air conditioner? For most split-type units, this will be about 0.142 kilowatts per square metre.

Here is an example:

The AC unit that helps your haven to be relaxed and comfortable varies depending on the size of the room that needs ventilation. For 18 square metres, which is about half an average-sized home in Europe or Asia, it would be 2 500 watts worth (2 5kW).

The more space you have, the better your AC should work. If it’s 60 square metres, then an 8kW unit will do just fine.

The key to efficient operations is low wattage. If you cannot lower the temperature correctly, there will be wasted energy and money spent on cooling costs.

Here is a more specific way to measure a room or a whole house.

24m x 140 Watts = 3,360 Watts

Therefore, we need 3, 360W to cool this room.

3,500W is perfect to effectively cool this room.
Anything below 3, 360W will not cool this room
effectively and will consume more of your electricity
compared to the split type with a sufficient wattage
energy.

The multiplier accurately predicts weather patterns in Brisbane, Sydney, and Perth. For example, assume the standard roof height to be 2 metres with windows sized according to the local building codes for your area. Not adding any additional heat sources otherwise known would affect temperature calculations differently from what you did expect beforehand.

When measuring larger areas above 6000W, this should only serve as a guide. The power output of your lights may vary depending on the type and size you have installed.

Luckily for you, the Australian home needs only 7 kW in your lounge and 2.5 kW for bedrooms, which is 90% of all cases.

When To Opt For a Ducted Air Conditioner Instead of a Split System?

When you’re looking for a type of air conditioning system, there are a lot of factors that go into your decision. Some things to consider are the split system cost, size, several rooms, maintenance, etc.

Ducted and split systems both have pros, but they also have some drawbacks. Read this definitive guide on ducted air conditioning vs. split systems to help you determine your choices and choose what’s best for your home.

The Search For a Reliable Air Conditioning Suppliers in Perth Is Over

When you’re overwhelmed with choices or want to make sure that your decision is the best one, get in touch with an expert from Global Cool Air who can help you decide.

An air conditioning specialist knows these equations back and forth- they know everything about other factors affecting air conditioning decisions.

Homeowners should consider getting a professional to help them with this task. Then, professionals will know the exact size split system they need based on their measurements and other aspects like insulation in choosing one of these systems for your home. Get a quote today!