Heat & cool multiple rooms with a Multi Head Split System Air Conditioner
Martin Heating & Cooling provide professional installation of Multi-Split Systems in Geelong, Ballarat and Melbourne's West.
Are you looking to heat and cool multiple rooms, but don’t have room for a ducted system? Then a multi-split system could be the answer.
If you need a quote or professional advice, call us on 1300 146 525 or fill out our online enquiry form. Or keep scrolling for more information including:
Why install Multi-Split System Air Conditioning?
Multi-Split System Air Conditioners heat and cool multiple rooms without the need for ductwork.
They allow you to set different temperatures in each room and you can choose from a range of indoor unit styles – like slimline grilles, wall mounted units and ceiling cassettes.
Multi-Split System FAQs
Multi Head Split System Air Conditioning operates using the same technology as standard Split Systems, but with one key advantage: a single outdoor unit can power multiple indoor units.
Multi Head Split Systems have one outdoor unit powering multiple indoor units.
Each room has its own remote control, allowing you to set it to the temperature you want without it affecting the other rooms.
What size kw outdoor unit do I need?
How many rooms you want air conditioned and the size of them will depend on what size Multi Split system (represented in KW) you need.
For example, if you have 3 small rooms which require a 2.5kw air conditioner in each room, you will need at least a 7.5kw outdoor unit to run them (3x 2.5kw).
But if you have 1 large room requiring a 7kw and 2 small rooms requiring a 2.5kw, you will need a 12kw unit to run them.
Generally Outdoor units come in a range of sizes from 7.5kw – 12kw. How many indoor units can be connected to them varies depending on the brand and model, but its usually 3-5 indoor units.
It is important to note: While you can adjust the temperature in different rooms, ie 19C in one room and 24C in another, the outdoor unit can only run in either heating or cooling mode at one time – ie you can’t heat one room while cooling another at the same time.
Along with standard wall‑mounted split system units, you can also choose concealed units that just show slimline vents for a cleaner, modern finish. Ceiling cassettes are another option, ideal for rooms where you want the air to spread evenly in all directions.
Indoor unit options:
- Wall mounted split systems
- Slimline grilles – the rest of the unit is hidden in bulkheads or ceiling
- Ceiling cassettes – disperses the air from the ceiling in 4 different directions
- Floor console (think space heater style)
You can also mix and match, you can have different design indoor units in each room.
Multi‑Split air conditioners are often used in homes that don’t have roof space for ducted systems — like townhouses and apartments.
They’re also a good choice for ground floors of double story homes, where you can’t easily run ducts between levels.
Generally, if you need your whole home air conditioned, it is more cost effective to install a Ducted Reverse Cycle system.
Features & Benefits
As well as being economic to run, there are some handy features available for Multi-Head Split Systems, such as WIFI control,
Features vary from brand to model, so let us know if you are interested in particular feature so we can find your perfect system.
All Split System Air Conditioners – including Multi-Splits – uses energy efficient refrigerated technology to bot heat and cool.
Using one outdoor unit to run several indoor units — instead of having multiple separate split systems — is handy if you don’t have much space outside your home.
Good option if your house design doesn’t allow for a ducted system to be installed.
You can choose an indoor unit to suit your room. For example, you might have a multi-directional ceiling mounted cassette in the loungeroom and wall mounted units in the bedrooms.
Each indoor unit has its own controller which controls the temperature and fan speed for that room.
It can also be programmed to on and off at certain times.
Those will Solar PV systems will benefit from offsetting their air conditioning running costs.
Features vary between brands and models, so let us know what features are important to you…
- WIFI connectivity & smart phone app – warm or cool your house before you get home
- Quite mode
- Turbo function – quick heating/cooling
- Sleep mode – auto adjusts temperature for comfortable sleeping
- 3D airflow – blades move horizontally & vertically
- Dehumidifying mode
- Proximity sensor – save energy while you are out of the room
- Self cleaning mode
- Anti frost mode
- Slimline profile
Multi-Split System Installation & Running Costs
Find out factors which determine Multi-Head Split System costs, and how it compares to a ducted system.
Need a Multi Head Split System installation quote? Give us a call or use our easy online quote request form. All of our quotes are fully-inclusive, covering your chosen system, quality installation, necessary electrical work, and any government rebates you’re eligible for.
Not sure whether to install a ducted system or multi splits? Our staff are able to provide professional advice and quotes for both options.
While there are too many variables to be able to give a price indication, we have listed factors which determine the installation price.
Cost factors to supply and install a Multi Split include:
- How many rooms or areas you want to air condition
- The size of the rooms or areas
- The proximity of the rooms in relation to the outdoor unit
- The type of indoor units you want
- Your house design ie difficult access or double stories can take longer
- The star rating of your split system
- Features you want
- Brand and Model
Multi-Split System vs Ducted Air Conditioning Cost
While single Split Systems are the most cost effective solution for both heating and cooling individual rooms, once you add more indoor units, the cost increases.
If you need 4 or more indoor units, we generally recommend installing a Ducted Reverse Cycle System as it’s around the same price, but covers your whole home.
Of course, if you house doesn’t have roof space for a ducted system, such as townhouses, then Multi Split Systems are a good option.
Single Split Systems are very economical to run, you can check our Cooling System selection guide for estimated running costs. Just keep in mind, the more indoor units you have, the higher the running costs will be.
The running costs of your Multi-Split System will depend on various factors including:
- How many indoor units you have
- Your electricity tariff
- How often you use it and for how long
- What temperature you set it to
- The star rating of your system
We only recommend and install heating & cooling systems which have a proven track record for quality, value for money and longevity.
Multi-Split System brands we work with include Rinnai, ActronAir, Daikin and Mitsubishi
What our customers are saying…
Multi Split System Installs in Geelong, Ballarat & Melbourne's West
At Martin Heating & Cooling, we’re proud to service a wide area that spans the Geelong region, Ballarat and the western half of Melbourne.
Geelong region including Bellarine Peninsula, Surf Coast, Golden Plains, Lara
Ballarat region including Buninyong, Sebastapol, Wendouree
Melbourne’s West including Werribee, Point Cook, Tarneit, Williamstown, Essendon, Braybrook, Keilor, Craigieburn, Caroline Springs, Melton, Sunbury
