Not all heating and cooling systems are created equal
A split system is just one of many options when choosing an air conditioner. The best solution can often depend on your priorities and the spaces you’re heating and cooling. Below you’ll find different types of heating and cooling:
Evaporative coolers blow air over a film of water on a filter or sponge, cooling the sponge and the air through evaporation. Outside air is drawn through the evaporative unit (generally on the roof) and cooled.
This cool air is then forced into the house, which pushes the hot air out through open windows and doors. This type of cooling unit is only suitable in low-humidity areas that don’t experience extreme heat (over 35 degrees Celsius).
Ducted air conditioning systems
A ducted system is designed to cool and heat an entire home. They have an outdoor unit and ducting that is usually installed in the ceiling or under the floor. Air ducts run from the outdoor unit, generally through channels in the ceiling, and then into each room. This can be an expensive option to both install and run, but it can be a cost-effective way to heat or cool a large house. Think about whether a ducted system or multiple split systems would suit your needs better.
Window air conditioning units
A window unit is a single box installed in a window or less typically, through an external wall. For smaller spaces of up to 50 square metres, these can be useful and affordable options, especially where a split system is unavailable (for example in rental properties).
These units aren’t as energy efficient as split systems but can be a viable alternative with lower up-front costs. However, as their energy efficiency rating is lower, they will have higher running costs.
Wall air conditioning unit
A wall unit is made up of an external compressor unit and an internal unit mounted on the wall. Usually, one wall unit is installed in each room in the house. There is a range of products in the market so be sure to choose the ones with the highest star rating to keep your heating and cooling bills under control. Wall units are also a great way to match installation costs according to your income (i.e. you don’t have to install them all at once).