Heat and Cool Your Whole Home With Multi Split Air Conditioning

Multi Split Air Conditioning systems can heat or cool multiple rooms at once. It consists of an outdoor unit which runs multiple indoor units. One of their advantages is that they allow you to control individual room temperatures.

They are ideal for homes which require more diverse heating options where one wall-mounted split system is just not enough. They are generally more energy efficient than ducted systems and are ideal for rooms with limited ceiling space for duct work.

The Daikin Range

Take a look at Daikin’s range of multi split systems for cooling and heating multiple rooms at once.


Wide selection of indoor units to suit any home, making this the ultimate multi room system.

  • Heating or cooling up to 14 rooms
  • Small block sizes with limited outdoor space
  • Large luxury homes


One outdoor unit can maintain comfort in up to 5 different rooms, making this unit the smart choice.

  • Heating or cooling up to 5 rooms
  • Quiet multiple room air conditioning
  • Individual control of air conditioning in each room

Cost Efficiency

The following prices are taken from sustainability.vic.gov.au. Prices reflect average cost of running for one year in a small house (100m2).


Multi Split 3.5 Star


Gas Ducted 6 Star


Electric In-Slab

Pros and Cons

Weigh the pros and cons of multi split air conditioners to see if it’s the perfect fit for your home.


  • Flexibility & Convenience
  • Energy Efficiency
  • Quite Operation
  • Independent Room Control


  • Multi Split Power Consumption vs Single Head
  • Restrictions on Placement
  • Units can be Bulky
  • Interconnection can Create Problems if Outdoor Unit Fails

Melbourne Multi Split Installation

Installing split systems is one of our specialties. Our installation process is hassle-free, and we will have your new unit up and running in no time! Our qualified staff take extra care to make sure that your split system is the right one for your home and it’s position is perfect. You will be the proud owner of a new system that will keep your home comfortable through both Summer and Winter. We are the best at what we do and we are both affordable and thorough.

Trusted Quality

At Efficient Air, we use only the best products from the most reliable brands. A lot of our installations use products from Daikin. While they are a fantastic option, we also use a number of other trusted brands such as Mitsubishi, Samsung, Rinnai and more which you can learn more about here. We only recommend brands that we know and have worked with, so take our word for it – you can’t go wrong!

Talk to the Experts Today

Efficient Air is a locally owned and operated business and has been servicing Melbourne’s heating and cooling needs for over 10 years. We are a family business with over 40 years of experience. Only employing the most qualified and skilled tradesman, ensuring high quality, professional work always.

Our commitment is to provide high quality, affordable heating and cooling solutions with honest and expert advice.

Some of the services we offer include:

If you want honest, reliable and expert installation and services, you can’t go past Efficient Air!


  • How does an air conditioner work?

    Air conditioners absorb excess heat from a room via refrigerant in it’s system. A fan then blows ambient air over the hot coils in the outside unit to cool them. Once the heat is removed, there is only cool air to be blown back into the room.
  • Can I run my indoor unit with windows and doors open?

    If you wish to maintain a desired temperature in a room, opening windows and doors will have the opposite effect as the heat or cool air will escape instantly. This also makes your unit work harder, wasting power and money.
  • How do I heat and cool multiple rooms in my house at the same time?

    Multi split systems can be operated in cooling or heating mode, not both at the same time.

    However, using a multi split system means that you can cool or heat multiple rooms at once with a single unit.

  • Can I turn on one indoor unit with a multi split system?

    You can operate a single indoor unit in a multi split system. This can be effective if you only want to heat or cool one room in your house. It is the main benefit of installing a multi split system.
  • Can I take my split system with me when I move house?

    Split systems can be removed and reinstalled in a different house. However, this may void your warranty for systems that are reinstalled somewhere other than the original house. If you are going to move a split system to a new house, make sure that you get a qualified technician to perform the installation.

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Hear From our Customers

    5 star review  From first contact with Efficient Air team it was an easy process. Every appointment from quote to installation was on time and professional. We had a full under floor gas heating system installed. Everything went smoothly with no issues. From my experience ,I would and will, recommend Efficient Air for your heating cooling requirements. Worth giving them a call. Truly Efficient and great price too.

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