What Size of Air-Con Do I Need to Handle the Summer Heat?

The Australian summer heat can be insufferable and a good quality air conditioner can go a long way to stay cool when things heat up. No matter how hot you are, however, buying an air conditioner should never be a spur-of-the-moment decision. You have to do your research to buy one that meets your needs. 

When it comes to size in particular, while it may be tempting to simply buy the largest air conditioner available, it doesn’t guarantee optimal performance. As such, here is a quick guide on choosing the proper size of air-con to handle the summer heat:

4 Key Factors to Consider Before Buying an Air-Con 

1. Room Size

The size of the air conditioner that should be put in your room is determined by the area that needs to be cooled. In Western Australia, you’ll need between 120 and 150 Watts per square meter of the floor area.

As such, you should calculate the floor space and volume by determining the height, width and length of the room(s) you need to cool. In this light, a bigger room will need a larger air conditioner since it needs more energy to cool.

2. Insulation

Insulation keeps rooms at a consistent temperature by controlling heat flow through absorption. If your floors, walls and ceilings are insulated, you will most likely require minimal heating and cooling. 

Insulation makes your home more energy-efficient. That said, opt for a larger air conditioner if your home has poor insulation. 

3. Location

Australia is generally hot during the summer, but some areas are hotter than others. A room in Marble Bar, for example, will require a larger air conditioner, or a more powerful one than Perth since the former is hotter. This goes to show that location affects the size of air-con because of the climate in which one lives. 

4. Orientation

Did you know that a building’s long side should be oriented in a way that minimizes the exposure of rooms to direct sunlight? Orientation is important because windows facing north or west can trap a lot of heat. 

In this sense, does your room have a north- or west-facing window that can trap a lot of heat? Opt for a larger Air-con.

Types of Air-Con You Can Consider for Your House

Split Type Air Conditioning System

These air conditioners are made up of two sections, one of which is attached to the inside wall and the other of which sits outside to exhaust heat. These are inexpensive to install and allow versatility by having individual units for each area.

Reverse Cycle Split System (Heating & Cooling)

This is a type of air conditioning that heats and cools at the same time. Unlike other similar systems, this Reverse Air Conditioning technology allows the user to use a single device to either cool or warm a home in the summer or winter.

Portable Air Conditioner

This form of air conditioning is ideal for individuals in need of a quick fix; simply plug it into a power outlet and you’re set to go. 

Window Wall

This type of air conditioner can be mounted on a window sill or into an external hole in the wall. Some versions can both heat and cool, allowing you to keep cool in the summer and warm in the winter with only one appliance.

Still Not Too Sure? Contact Us to Have a Chat With Our Experts at Coastal Electrics

For over 30 years, we’ve been serving Perth’s residential regions, providing a wide range of aircon services. We’ve been able to create a wide customer base, which includes residents, organizations, builders, and others.

As an experienced domestic electrician in Perth, we have a proven track record of delivering high-quality, cost-effective and timely solutions to our customers. We can help you choose the right size air conditioner for the summer. Get in touch with us right away!