Multi Head Split System Air Conditioning

A multi head split system air conditioner can be a great option for Melbourne homeowners as it can be installed in multiple rooms.

Our team of professionals have years of experience installing multi head air conditioners, and we are confident that we can provide you with the best possible service.

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What is a Multi-Head Split System?

‘Multi-head’ refers to the system of having multiple indoor split system units throughout a home that run from a single outdoor unit. Each indoor unit heats and cools their respective room(s) while the outdoor unit (usually installed at the side or back of the house) runs the multiple indoor units.

Multi-head air conditioners are ideal when there is limited space for multiple outdoor units. Multi-Head Systems also allow for individual control of the air conditioning in each room. This optimises comfort levels as each room can be set to your desired temperature. Multi-Head Systems can also mean reducing your electricity bills because you’ll only heat and cool the rooms in use.

The multi-head system you choose will depend on how many rooms require heating and cooling. Up to 6 indoor units can connect to a single outdoor split system unit. At Coldflow we have a huge range of the best brands to choose from.

Organise a Free Multi Head Split System Quote Now or Contact us today to learn more about our multi head split system services and how we can help you keep your home comfortable.

Multi Head Split System Install Photo

Multi Head Split System Specifications

Multi Room System

Runs On Electricity

Heating and Cooling

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Frequently Asked Questions About Multi Head Split System Airconditioning

How Do Multi-Head Split Systems Work?

How Do Multi-Head Split Systems Compare?

Traditional Split Systems have a matching outdoor unit for every indoor unit; given that every home has multiple rooms, having an outdoor unit for every indoor unit would take up a lot of space and power consumption – that’s where a Multi-Head system comes in.

With a Multi-Head system, you can have 2 or more indoor units connected to 1 outdoor saving you valuable space, and future servicing costs.

How a multi head system installed vs normal split system diagram
How a Multi-Head Split System works compared to a standard Split System

How Do Multi-Head Split Systems work?

Multi-Head Split Systems use the same technology as normal Split Systems. They work by having half the system (called a condenser) outside the home, and the other half (called the fan coil, or internal unit) inside the home.

When cooling, the warm air from inside the room is taken in by the fan coil and removed, resulting in cool air recirculating back into the house. While reverse cycle allows for the heat pump to run in reverse to provide heating during cold days.

What Are The Running Costs With Multi Head Split Systems?

One of our recommended brands for Multi-Head Split Systems is Mitsubishi Electric. For a Mitsubishi Electric MXZ Series 7.1KW System, installed in 2x small bedrooms, and 1x lounge room providing regular heating & cooling during the winter and summer periods, the annual running cost would be measured at $702.90.

Multi head split system running costs diagram
How a Multi-Head Split System works compared to a standard Split System
*Data is based on: 2016 Victoria Energy Tariff of 32.1 c/kWh, using a Mitsubishi Electric Multi-Head MXZ-4e71vad/msz-ge25vad collected from Sustainability Victoria’s Energy Consumption and Running Costs website. Usage times were set on average to 4 months of heating, and 2 months of cooling based on 7 hours a day. Actual running costs are affected by many factors including climate and insulation; this data should only be used as a guide and does not guarantee your individual running costs will reflect these results.

Reducing Multi Head Split System Running Costs

It doesn’t take much to reduce your running costs. Depending on the model you purchase, and it’s respective star rating will determine how much you can save annually. However looking beyond the initial cost to how you use your Multi-Head Split System can help as well.

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Tips For Using A Split System

Best Tip! Set the thermostat between 24C and 26C for cooling. Every degree lower in summer will increase the running costs by around 10%.

  • Use the economy setting if your split system has one and regularly service your air conditioner.
  • Keep the sun’s heat out by closing curtains and external blinds during the day. Close windows and doors to areas being cooled when the split system is running.
  • When the split system is switched off and its cooler outside, open doors and windows to let the cool air in.
  • Insulate your home to keep the heat out in summer and in during winter.
  • Dress to suit the weather conditions.

Why Choose Multi Head Split System?

Multi-Head Split Systems are an economical solution for cooling lots of different rooms. Multi-head air conditioners are relatively simple to install, and the installation process can be incorporated to your renovation or building project. Building occupants can adjust the heating/cooling in their own room. It is an ideal choice for large homes, office buildings, and multi-residential premises.

Various split system indoor unit types
When using a Multi-Head Split System, you’re not limited to just Wall Mounted indoor units, in fact you can choose from a whole range of different indoor units

Why Choose Coldflow for Multi-Head Split Systems?

Unlike single Split Systems which can be sold and installed by almost any air conditioning company, Multi-Head Split Systems can only be sold and installed by qualified air conditioning companies, it’s not even something that the big retail stores can sell and install. With over 150,000 heating and cooling installations completed, we have conducted thousands of Multi-Head air conditioning installations; combined with our experience, and range you won’t get a better solution anywhere else.

We supply and install a wide range of different multi head air conditioners at competitive prices. We’ll listen to your ideas, needs and budget constraints to help you decide which system would best suit your property. Our professional team can also repair and maintain your existing system at an affordable rate.

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Multi Head Split System Installation Locations

Melbourne residents looking to warm up during the cool winter months know they can rely on Coldflow for reliable heater installation. For over 50 years, Coldflow have provided quality installation and heater repairs across Melbourne's suburbs. Whether you're in Springvale, Richmond or even Mornington, we are able to come to you and are ready to provide unbeatable expertise and experience.

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What Our Customers Are Saying

We've had the team out on a few occasions now and they have been fantastic. Always on time, great communication and clearly experts in this field. I trust their work and advice and will continue to use Coldflow in the future. I'm already referring them to family and friends.
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Richard J.
IVANHOE EAST
November 2024
Organised for the team to come out and assess the in laws heating and cooling. There were 6 systems in total. All were checked and reports received. Services conducted on the systems worth keeping and advice given re the others, allowing informed decisions to be made. Highly recommended.
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LINA S.
MOOROOLBARK
July 2024
Sorry I had forgotten the survey. All went well. Ray came as he said and went to work straight away. He left the area clean and tidy after explaining what he had done for the service. Will definitely look to Coldflow in two years time for the next service.
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LIZ P.
NOTTING HILL
June 2024
We had a great experience. We were called when there was a cancellation and had the heater installed very quickly. Nick who did the installation did a fantastic job, please pass our thanks on to him. Would highly recommend his work to anyone. Kind Regards
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IAN G.
ASHWOOD
January 2024
Rang for a service on the existing gas ducted heating system to find the system had died. A quote for a new system was provided on the day and installed the next day. The installation team were excellent, providing great advice and support during the installation. Sincere thank you to all.
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TINA M.
TEMPLESTOWE
June 2025
STEVEN crcic IS THE man !!!!! I have never had a better service in my life my girlfriend and I are so stoked he got the fan in the other room working. He was professional caring and overall a champion. Give the brother a few weeks paid time off and a raise and a promotion. 10/10 can't recommend enough
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MARCUS K.
COLLINGWOOD
January 2024
The 2 servicemen were absolutely 1st class. Extremely knowledgeable, clean and efficient. Very importantly they were also extremely considerate of my house and how they conducted themselves! Overall a brilliant experience and I will certainly be telling everyone about the flawless service that I received. Many thanks
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BRETT G.
BRIGHTON EAST
January 2024
Darren Story was very helpful with the initial site visit, he explained clearly how the installation would run, and gave us the options. Ash and his team did a highly professional job with the installation, and I am thankful that they wore masks as my mum was home recovering from surgery. A brilliant job all round, thank you very much.
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Patricia j.
PARKDALE
April 2023
The young guy was very polite, knew what he had to do , and told me what he HAD done. BTW , I was the one that organized many of Braemar heaters to be installed here in my village. ( Waterford Valley Lakes) I would have thought that you would have organized ALL the other ones to be serviced at the same time as they are the same age.
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BERT B.
ROWVILLE
February 2025
Jared was most helpful at all stages especially with filling out the form during the cash back submission to Mitsubishi. I was very happy with Scott the electrician who returned the installation areas back to normal condition. Thanks Jared and Scott.
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LIZ P.
NOTTING HILL
July 2023
The whole process from selecting the Aircon, advised by Sales Rep Jared to the installation by Bailey and Anton was so efficient and smooth flowing. Installers were exceptionally courteous and helpful and professional. I couldn't be more pleased with the overall experience. Thank you very much!
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Ranjit K.
FOREST HILL
June 2023
The Salesman Craig who came to our home was very friendly, helpful and efficient. It was easy to pay the balance of our order at the Showroom. The two instillation guys who came to our house were also very friendly, helpful and efficient. Overall an enjoyable experience and now we are toasty warm
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SANDRA S.
CRANBOURNE
July 2022
Once again Brodie excelled and organised a technician to come straight out to tend to a minor issue. No questions asked just great customer service as always. I highly recommended Brodie and the team at ColdFlow. After using them for the first time a few years ago we would not go anywhere else. A huge 'thank you' to everyone at ColdFlow ??
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TRACEY S.
GARFIELD
February 2024
I was very happy with this companies service. I had a lot of appointments and they made a time that suited. They even showed me how to use the ducted heating system to as an air conditioning ducted system as I only have an air con in the lounge room. I was very impressed.
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DANIELLE D.
BORONIA
October 2024
Service guys arrived very late, but were delayed by a meeting at base. Lead guy apologised. He was quick, pleasant, informative and polite. He identified a fault in out gas duct heating and showed a photograph of it. Since then a quote for repair has been sent.
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MICHAEL B.
RICHMOND
April 2025
This is the second time we've used Coldflow, largely due to our positive experience the first time around. Sales process was quick and easy - very clear and helpful with advice and suggestions about what we needed. Installers were lovely - really polite, efficient and thorough. Cleaned up and explained everything. Will recommend to others.
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ANDREW B.
BLACKBURN NORTH
August 2022
Craig was great, explaining thoroughly & giving advice on appropriate systems to best suit our floor plan. Advised where best the systems should be installed. The young lads installing were absolutely marvelous! Very polite, very tidy & we can't fault their work. Thank you to all involved in making our purchase a hassle free transaction
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TRACEY M.
BERWICK
November 2023
The installers were exceptionally good. Understood the fragility of my ceiling and dealt with my threatening neighbour when they climbed on the roof on my side. The technician also gave me advice on how to keep the filters healthy and what setting to use. Thanks Coldflow.
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JULIE D.
HAWTHORN
January 2025
The two technicians were well mannered, presented well as representative of your company and did a good job explaining what they had done in terms of the service of our gas heater. They were polite, arrived when they said they would which is important given we work form home and have work commitments. Great ambassadors for your company.
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MARIANNE S.
BALWYN
April 2025
Darren Storey - Professional, knowledgeable, easy to deal with. Adam scheduled the installation promptly and then it happened a week earlier - great. Installation crew lead by Jason - fast, efficient, timely - considering the wet weather throughout the morning and hopefully all has been done properly.
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MICHAEL A.
DINGLEY VILLAGE
November 2023
Prompt and good communication in letting customers know when they are about to arrive. They do and communicate what was done in service. Any questions are answered and I like the professionalism of turning up in a company named work vehicle and uniform. Also the payment method is trusted with a receipt on the email
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KATHERINE V.
SCORESBY
November 2024
Coldflow were great to deal with throughout the whole process. Communication was very good. Installers were on time, efficient and friendly. They moved furniture and picture on wall, put a sheet down over the carpet and left everything clean. Explained how to use the split system
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HEATHER J.
CROYDON
January 2025
Daniel Hay, the person that measured up and provided the estimate was excellent. He was very professional and came across as very honest and trustworthy. The installer's were excellent on the day they just got on with the job and removed all the rubbish and vacuum up afterwards.
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EDEN PARK
February 2023
This was an incredibly easy process for us from start to finish. Daniel was wonderful at determining the best fit for our house and life and made the selection process so easy. The team on the day were quick and did a great job. We can't believe it didn't even take a full day. We are so happy with everything!
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Tess F.
COBURG
January 2023
I was especially happy with the happy with the airconditioner installed in my bedroom.I can highly recommend tle 2 young men who installed it. They were very polite, the airconditioner is well fitted, it works well and when cleaned up after their work. The office workers were helpful responding to calls and answering my questions.
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ALMA K.
SOUTH MORANG
May 2024
Ray did an excellent job. As it turned out, the error that caused the problem was cleared when the power was off after the storm, but he still made sure the system was working properly by doing a really thorough check of everything. Very helpful, professional and clearly very keen to make sure the job was done properly. Great work!
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ANDREW R.
MULGRAVE
February 2024
Daniel was great to deal with, thorough, answered all our questions and communicated well the whole way through. The installation team that come out were fantastic. Double checked anything they needed to, polite, personable and respectful of our home and that my partner was working from home while they were here.
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Will C.
ROMSEY
February 2025
The whole process was smooth from beginning to end. (Brian was Sales Rep). Good communication was provided via phone or txt msgs. The installer (Matt) was punctual, professional, polite, friendly, and a hard worker on a very hot day! A/c unit is effective, quiet and a slimline design. Thank You!
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JENNY T.
CLYDE NORTH
February 2025
This my third dealing with Coldflow (3 different properties). Their response times are quick and they make the process extremely easy. The sales person is professional, responsive and easy to deal with. The installers took care, were polite and very easy to deal with.
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Debra K.
ASCOT VALE
April 2023
After 4 weeks of research, quotes & cold to replace split system I am very happy with Coldflow from Daniel coming to give quote, efficient installation by pleasant men & communication on phone. Cosy now with my bigger heating system as advised. Thank you. Would recommend you from my experience.
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TRISH A.
BALWYN
July 2023
I have always had very good service from Coldflow in the past and now at present and I would thoroughly recommend them to everyone who has airconditioning. As our house is relatively new at present, we are waiting to hear from the builders if our system is still under warranty, if it isnt we will certainly get back to you again.
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LINDA F.
CLYDE
January 2025
I received a welcome email reminder that a service was due and made a booking date to suit. Your technicians contacted me the day before to confirm a time and they arrived on time as promised. The work was carried out efficiently by two young men, Steven and Hilo, who did so with courtesy and good humour. They are a credit to your business.
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AAFKO S.
HEATHMONT
October 2024
Daniel Hay - Sales consultant was awesome and he recommended the best EvapCooling system for my double storey house. Installers were amazing. Did the best and clean job. Highly recommend ColdFlow for professional service and they are THE BEST in Melbourne. PERIOD.
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PARAM C.
HILLSIDE
December 2023
I was happy with the whole procedure, the cheerful telephone contacts including Adam, the visit from Chris for the original service, the quotation and information from Brian and the two installers yesterday. Thank you all for being so positive and Helpful.
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VERONICA N.
ENDEAVOUR HILLS
June 2023
We were very happy with the whole process, from the Sales Consultant Liam, to the installers Josh, Anton, Bailey and Casper. They were all excellent workers from the moment they arrived to when they left. They were on time, polite and cleaned up all of their mess. Would highly recommend.
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DEBBY F.
CHELTENHAM
February 2023
An excellent experience. The online was simple and efficient. The call out team were on time, clean uniforms, friendly and polite. Their work was excellent. Everything was made clear. I honestly couldn't fault my dealings with your firm, you should be very proud of the work you must have done to achieve this standard.
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Richard S.
BRIGHTON EAST
July 2023
Very likely, your team arrived on time. They worked quickly and efficiently, plus they were very friendly. They left our house as they found it , clean and tidy. Just one thing they left behind a piece of equipment which I'm sure they can use. It is no use to us, so it would be a shame to throw it out. Many Thanks.
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ANNELISE B.
ROWVILLE
February 2023
Product selection and design was perfect. I was always informed with progress. Installation was carried out by courteous tradesmen. The completed installation was tested thoroughly and I was shown how to operate the equipment. Well done to everyone who participated. Big Thanks!
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JOHN R.
TEMPLESTOWE
November 2022
Fantastic service both in regards to receiving the quote (the man sent out seemed to be very knowledgeable and helpful in providing advice on what would work) as well as the installers, who were timely, friendly, knowledgeable and professional in their installation of our split systems :) very very happy with the service we received!!
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MARC P.
WOLLERT
January 2024
I had not dealt with Coldflow until very recently. In a two week period I have dealt with service, sale and installation personnel. All of them were extremely pleasant to deal with, very helpful and efficient - great customer service makes happy customers :)
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WENDY L.
MALVERN EAST
August 2023
The whole installation and mains connection went seamlessly, with only a very small 'mains disconnect' period, which was great as my son is currently WFH and had a very small unavailability time with work. Very happy with the whole process, from quote to installation.
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Keith G.
HAMPTON PARK
February 2023
Relatively minor problem. Serge took due diligence and checked whole unit. May need a new stop valve in future. He explained how how well our 19yo unit is functioning and gave us thoughts on future possibilities. Obviously a very experienced technician and a real gentleman.
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ROD P.
KILSYTH SOUTH
February 2025
We had so much trouble getting information and things booked in with other companies but Coldflow were just wonderful!! We cannot thank you all enough for getting on to things so quickly for us. Communication excellent and overall a fantastic service! Can highly recommend.
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LAUREN D.
BELLGRAVE
June 2022
Amazing turnaround and communication! We had a sales person booked in 3 days after we made the online enquiry. Quote was provided on the spot. All questions answered promptly. Installation one week later. All completed in one day. Sales and installations staff were all super friendly, approachable and helpful. Could not fault the team or service!
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MEGAN T.
LAUNCHING PLACE
June 2025
Luckily service personnel came early in the 4 hr window which suited me. Both were very polite and carried out the servicing plus they were able to respond to a couple of questions I had about this aircon unit ( I've recently moved in to new flat) Very satisfied Thank you Julie
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JULIE B.
SAINT KILDA WEST
March 2024
Excellent service all round -from person who made appointment to the staff who attended gave great service. Notified half hour before arrival, arrived on time, service completed without fuss, used protector to safeguard flooring and minimise mess, showed photos of issue and how it was rectified, explained report and length of warranty on service.
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ROSINA G.
CRAIGIEBURN
July 2024
Nick came and installed my parents heating and evaporative unit and was absolutely amazing to deal with. He was professional, polite and most of all happy to answer all our questions. Thank you Nick. Thank you to Tom the sales rep who originally came to see us too.
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ANGELA M.
RINGWOOD
February 2023
My ducted air conditioning system was not working it had been installed by another company. I rang to try and get someone to diagnose my problem,on the same day a serviceman turned up and it was fixed for $275.00. Well worth it. Neil from Beaconsfield
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NEIL S.
BEACONSFIELD
March 2024
This is the second time we have had Coldflow at our house. Each time the quotes were competitive. The installers arrived on time and were super efficient removing an old device and installing the new unit. Thanks to the team especially Nick and the electricians
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STEPHEN G.
SURREY HILLS
December 2023
The team of installers did a fantastic job. We couldn't believe how quick they were in completing the installation of our new air conditioning system. I wouldn't hesitate to recommend Coldflow to friends or family if they require an air conditioner installed.
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ANDREW R.
ALTONA
February 2024
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