Systems · Multi-split systems

Multi-Head Split Systems for CoolingHeating Several Rooms

Multi-split air conditioner installation, service and repairs across Australia. One outdoor unit runs an indoor unit in each room you choose, so you get reverse cycle heating and cooling without a row of units outside.

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At a glance

Multi-head split system

Best for: Several rooms, limited space outside
Does: Heating and cooling
Outdoor units: One
Indoor units: One in each room you choose
We do: Install, service and repair

What is a multi-head split system?

One outdoor unit, several rooms

A multi-head split system, also called a multi-split air conditioner, connects two or more indoor units to a single outdoor unit. Each indoor unit has its own remote, so every room sets its own temperature.

It works like a standard reverse cycle split system, heating and cooling by moving heat through refrigerant pipes. The difference is that the rooms share one outdoor unit, and all of them run in the same mode at once: heating or cooling.

How a multi-split system cools in summerHow a multi-split system heats in winter

In each room

Heat is absorbed

Each indoor unit draws warm room air over a cold coil, which soaks up the heat.

In the pipes

Heat is carried out

A separate pipe run takes the heat from each room to the shared outdoor unit.

Outside

Heat is released

One outdoor unit releases the heat from every room.

Outside

Heat is collected

The single outdoor unit collects heat from the outside air, even on a cold day.

In the pipes

Heat is shared out

Refrigerant carries that heat to each indoor unit that is switched on.

In each room

Warmth is released

Each indoor unit blows room air over its warm coil and back into the room.

Benefits

Benefits of a multi-split air conditioner

Several rooms, one outdoor unit

Cool the bedrooms and the living area from a single outdoor unit, and heat them with it in winter.Heat the bedrooms and the living area from a single outdoor unit, and cool them with it in summer.

Saves space outside

One outdoor unit replaces a row of them along the side of the house or on the balcony.

Each room sets its own temperature

Every indoor unit has its own remote, and rooms you are not using stay off.

Mix indoor unit styles

Wall, floor and ceiling units can run from the same outdoor unit, to suit each room.

No ducts needed

It suits homes with no roof space, where ducted air conditioning cannot go.

Where it suits

Homes that suit a multi-head split system

A multi-split system suits homes that need several rooms covered and have little room outside. These are the homes we fit them in most.

Apartments and units

Balconies and body corporate rules often allow only one outdoor unit. A multi-head system makes it count.

One outdoor unit

Townhouses

Narrow side passages and small courtyards leave little room for several outdoor units.

Tight on space

Homes without roof space

Flat roofs and raked ceilings rule out ducts. A multi-split covers several rooms without them.

Ducted alternative

Two-storey homes

Put indoor units in the upstairs bedrooms and run them all from one outdoor unit at ground level.

Upstairs bedrooms

Bedroom wings

Give two, three or four bedrooms their own unit and remote without filling the yard.

2, 3 or 4 head systems

Not sure it's the one?

Multi-head split vs separate splits vs ducted

A multi-head split system sits between single split systems and ducted air conditioning. These are the pros and cons of each.

This page

Multi-head split

Several indoor units, one outdoor unit

Separate split systems

One outdoor unit for every room

Ducted reverse cycle

One system, vents in every room

Rooms covered

Several rooms

One room each

The whole home

Outdoor units

One

One per room

One

Room control

Own temperature, same mode

Fully independent

By zone

If the outdoor unit stops

Every room is affected

Only that room

The whole system

What your home needs

Pipe runs to each room

An outside wall near each room

Roof or underfloor space for ducts

Best for

Limited space outside

One or two rooms

Whole-home comfort

Not sure which suits your home? Tell us the rooms you want to heat and cool and we'll recommend one.

Free quote

Get a multi-split system in before the heat.cold.

Tell us which rooms you want covered and we’ll come back with a system to suit and a fixed price. Prefer to talk? Call 1300 730 896.

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