Split system air conditioners are one of the more efficient and cost-effective conditioners for cooling your whole home or workplace. The name ‘split system’ refers to the fact that there are two separate units; one outside your home and the other inside. There are two different types available: single and multi split system air conditioners.

All split systems are quieter, more powerful and energy efficient than window/wall and portable air conditioners. Many split system air conditioners also come with handy built in features such as motion sensors, Wi-Fi and air purifiers or ionisers.

So what else makes a multi split system air conditioner different from the rest?

Single vs multi split system air conditioning

Both single and multi split system air conditioners have inside and outside units. A single split system air conditioner has one inside unit, whereas a multi split system can have multiple indoor units all connected to the one outdoor unit. Both single and multi split units are available as heating and cooling, or cooling only air outlet models.

A multi split system generally allows you to have up to five or more separate indoor units for different rooms in your house. The outdoor unit can be wall mounted if you live in a unit or have a multistorey house. Multi split systems are well suited for both residential and commercial use.

Multi split system air conditioning vs ducted air conditioning

If you need air conditioning in more than one room or area of your home but don’t have room to install ducted air conditioning then a multi split system is a great alternative. A comprehensive and informative guide to multi split air condition vs ducted can be found here.

Flexibility and convenience

Multi split system air conditioners offer unsurpassed flexibility and convenience allowing you to choose the right indoor unit for each room of your house. You can install a high capacity air conditioner for larger living rooms and smaller, quieter ones for the bedrooms, all powered by the one outside unit. This allows you to control the temperature and environment in your home on a room by room basis.

By being able to individually adjust the temperatures in each room you’ll save money and optimise comfort by heating or cooling individual rooms. You can have up to five separate indoor air outlets all powered by a single outside compressor.

Energy efficiency

Energy saving settings combined with the ability to heat or cool individual rooms helps to reduce power and running costs. Choosing the right indoor air outlet unit to suit each room also ensures that you’re not wasting power. The wrong unit in a room can result in the air not being cooled properly and energy being wasted. A unit that’s too big for a smaller room also uses more power every time you turn it on compared to a smaller unit running for a longer period of time.

By operating multiple indoor air conditioners from the one external air compressor, multi split system air conditioners are among the most energy efficient of all air conditioners. Choose the most energy efficient inside air outlet units for maximum savings on your power bill.

Installing a multi split system air conditioner

A multi split system air conditioner needs to be professionally installed. Due to the ozone depleting refrigerant gas used in air multi split system air and other air conditioners, they must be installed by a licensed air conditioning installation professional.

Your indoor air outlet unit should be installed as close to the ceiling as possible in each room. Cool air is heavier than warm air, so for maximum cooling efficiency point the louvres on your unit directly out or slightly tilted up. To heat the room, point them downwards.

You will need to give some consideration to where to place the outdoor compressor unit. Ideally, it should be shaded from direct sunlight and installed on a firm surface such as a concrete slab or attached to a wall with sturdy brackets. It should also be installed as close to the indoor air outlets as possible. Large and multistorey homes may require more than one outdoor unit in order to be able to run the piping from the outside unit to the indoor air outlet.

Pros of a multi split system air conditioner

There are many great reasons to consider a multi split air conditioner to keep your home cool in summer and warm in winter. These include:

  • energy efficiency
  • multiple indoor air outlets powered by the one outside compressor unit
  • ability to choose the most suitable and energy efficient air outlet unit on a room by room basis
  • adjusting temperatures to suit each room
  • more affordable to purchase and install compared to ducted air conditioning
  • you can add in extra air outlets later on down the track if needed
  • affordable maintenance, service, repairs and replacement of units.

Cons of a multi split system air conditioner

If you’re considering installing multi split system air condition you should also take the following into consideration:

  • Outdoor air compressors need to be placed as close as possible to the indoor air outlet units.
  • Depending on the size and design of your home you may require more than one outside unit.
  • The outdoor units are bulky and can be an eyesore so you will need to install them away from bedrooms, outdoor entertaining areas and your neighbours.
  • The indoor air outlet units require a relatively large amount of free wall space to be installed.
  • If something goes wrong with the outdoor unit, all indoor air outlets connected to it will be affected. So, if the outdoor compressor dies in the middle of summer, you won’t be able to cool your home until it’s fixed.

Speak to a multi split system expert

If you’re thinking about installing a multi split system air conditioner in your home, speak to an expert first. They can quote you on the best combination of indoor air outlets and outside units. An experienced air conditioning installer can also help to guide you on whether it’s the best solution for your home and help you choose the most energy efficient units for lower power bills.

To speak to an experienced air conditioning professional in Brisbane or the Sunshine Coast, contact the experts at Crown Power on multi split system air conditioner installation, repairs and maintenance.