Gas Ducted Heating & Evaporative Cooling

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Gas Ducted Heating + Evaporative Cooling

Combine gas ducted heating with evaporative cooling for year-round comfort.

Discover how Coldflow designs and installs dual systems that suit Melbourne climates.

How does it work?

Evaporative cooling and gas ducted heating are two separate systems, but can both be placed under the same roof to provide heating and cooling. Please refer to the Gas Ducted Heating and Evaporative Cooling pages for more detailed information regarding each specific system.

Why have both systems?

The benefits of having both systems is that your house will have climate control year round (heating and cooling), without compromising on the quality of air coming into the house.

One Controller

You can have year round heating and cooling, typically using one controller – speak to our sales specialists for more details.

Energy Efficient

Evaporative coolers are one of the most efficient ways to cool your house as well as high rated (energy efficiency rating) gas heaters. With a combination of both, you are receiving the best heating and cooling option with the most value out of your investment.

Environmentally Friendly

Evaporative coolers do not contain any harmful refrigerants (unlike refrigerated air conditioning units), which means that the ozone layer is not harmed for the sake of your cooling needs. Some gas heaters are able to use natural gas which is a greener alternative to LPG.

Organise a Free Gas Ducted and Evaporative Cooling Quote Now or Contact us today to learn more about our gas ducted and evaporative cooling services and how we can help you keep your home comfortable.

Gas Ducted and Evaporative Cooling Install Photo

Gas Ducted and Evaporative Cooling Specifications

Whole Home System

Runs On Gas, Water & Electricity

Heating and Cooling

Frequently Asked Questions About Gas Ducted Heating and Evaporative Cooling

How Do they Both Work?

How Does Gas Ducted Heating Work?

A ducted gas heating system is operated by drawing in air through a fan, and passed over to a heat exchanger to warm it. A return air vent (grille) recirculates air to the furnace, beginning the cycle again. The furnace (fueled by natural gas or LPG), which contains the heat exchanger, is usually installed in the roof space or just externally, but it can also be placed under the floor or even in internal cupboards if space is limited.

Ducting (which is connected to the heater/furnace) distributes the heated air throughout the home, and is usually hung/strapped within the ceiling space or under the floor.

Registers (also called 'grille', 'outlets' or 'vents'), situated in the floor, ceiling, or sometimes the wall, direct warm air into rooms. Heating outlets are best placed around the perimeter of the house, to provide an even heat distribution throughout your home.

How Does Evaporative Cooling Work?

Evaporative Cooling uses the natural cooling properties of water to lower the temperature of a room. A ducted cooling unit is installed on the roof and connected to a series of outlets placed throughout the home. The unit draws in fresh air from outside your house.

As the air passes through the filter pads (inside the roof unit), the air is cooled down and directed into every room in your house. The hotter the air, the better the cooling effect will be.

The entire volume of air within the house is refreshed every few minutes when using an Evaporative Cooler.

What are the running costs with gas ducted heating?

Our recommended gas ducted heating manufacture Braemar has the highest rating and reduction of running costs across all gas ducted heating brands here in Australia. Braemar has 5 Energy Star Ratings, 3, 4, 5, 6, and 7 star that is exclusive to Braemar. (7 Star rating equivalent is based on Australian Gas Association’s results calculated in accordance with the testing methodology in AS4556-2011.)

Using a Braemar gas ducted heater you can save on average $198-$577 on running costs depending on the unit you have installed.

Annual running cost savings for gas ducted heating

Gas Ducted Heater Star Rating Comparison
Gas ducted heater star rating comparison
*Data is based on: • Gas price = 1.6 c/MJ • House Size – 241 m2 x 2.4 m ceiling height • Operation hours per year • 600 hrs(100 days at 6 hrs per day) – based on AS4556-2011. House Heat load – 0.2 MJ/h/m3 – based on AS4556-2011 • Annual Energy Consumption(AEC) for different star rated heaters based on AS4556-2011. 3.0, 4.0, 5.0, 6.0 star rated ducted gas heating systems.

In comparison to traditional heating systems, gas ducted heating uses less electricity, and produces substantially less Greenhouse Gases. So not only will you save on running costs, but there is substantially greater environmental benefits for using gas ducted heating as well.

With Braemar gas ducted heaters you can save on average 0.69T – 1.99T of C02 emissions per year – while also enjoying a comfortable warm home.

Annual C02 Emissions Savings For Gas Ducted Heating

Gas Ducted Heating Co2 Comparison
Gas ducted heating Co2 comparison
^CO2 emissions from small car based on: Table 15, “Carbon Emissions from New Australian Vehicles 2011 Information Paper”, National Transport Commission Australia Calculation assumes an annual travel distance of 7900 km/yr. +CO2 emissions based on Australian Government Department of Climate Change and Energy Efficiency – National Greenhouse Accounts Factors July 2012.

What are the running costs with Evaporative Cooling?

Our commended Evaporative Cooling manufacture Breezair has the highest rating and reduction of running costs across all Evaporative Cooling brands here in Australia. Breezair Evaporative Coolers are so efficient they cost less than one tenth of a standard ducted air conditioner to run.

You could enjoy a comfortable cool house during the summer and other hot days of the year for as little as $37 per year in eletricity costs*. When you do the math,that's on average $346 per year of savings in electricity costs compared to a standard effciency ducted refrigerated systems

In comparison to traditional refrigerated air conditioning systems, evaporative cooling uses less electricity, has a lower peak energy usage, doesn’t produce CFCs or HFCs, and produces substainally less Greenhouse Gases. So not only will you save on running costs, but there is substainally greater environmental benefits for using evaporative cooling as well.

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Compare Other forms of Air Conditioners and Ducted Heaters

Photo of a Evaporative Cooling Unit

Evaporative Cooling Keep your family cool all summer long

Photo of a Gas Ducted Heating Unit

Gas Ducted Heating Heating for your whole home

Photo of a Ducted Refrigerated Unit

Ducted Refrigerated The most advanced and high quality air conditioning option

Photo of a Split Systems Unit

Split Systems Energy efficient single room air conditioning

Top-selling Gas Ducted and Evaporative Cooling Brands from Coldflow

Melbourne Air Conditioning Install Locations

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

Coldflow are Melbourne's most trusted name when it comes to air conditioning needs!

What Our Customers Are Saying

I received a call about 20 minutes before the team arrived at my house. They were extremely helpful and friendly. I was able to pay for the job on the spot, or alternatively, the office could send me an invoice. I appreciated the flexibility of the payment methods.
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SUE W.
HIGHETT

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

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

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

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

The whole process was very smooth end to end and we are very happy with the result. Everyone we dealt with was very professional and got back to answer our queries right away. We have already recommended Coldflow to 2 of our friends who are looking to have split systems installed.
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KATHY H.
BONBEACH

Team did a great job, install team had to vary the installation location of parts, access etc, vs. communicated during the sales process. This is fine, just a note that worth getting feedback from your install team to your sales team to help future customer comms. The team kept the site clean and took away all rubbish which was great
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CHARLIE H.
FAIRFIELD

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

On time, informative quote from pleasant sales person. Quick, clean install from pleasant on time installer. Installation even brought forward, quote on Wednesday, instal on Friday! So far great service just got to see how unit performs in hot weather.
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Elizabeth A.
NARRE WARREN SOUTH

Overall very satisfied. Quick to come out to quote, gave various alternatives and recommendations. Installers were very efficient installing four units in a few hours without leaving a mess and units are positioned nicely. Also much more competitive offer than another couple of quotes I received.
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PAUL F.
SANDRINGHAM

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

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

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

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

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

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

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

The engineers were very friendly and professional. They went out of their way to listen to me as a customer. The quality of their work was top-notch: they knew exactly what to do and they expertly installed the air con devices. Would definitely recommend ColdFlow to my friends and family.
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GREG C.
MULGRAVE

Dealing with your firm has been a very pleasing experience. Fabian and Hoy were so pleasant to deal with and carried out a very tidy installation. George and Christian were also very efficient in completing the electrics. We would not hesitate to recommend Coldflow. Thank you for your service.
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SANDRA J.
MONT ALBERT NORTH

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

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

Very happy with the whole process. All were knowledgeable and professional and turned up on time. They also worked through some pretty wet cold and windy weather but just got on with the job. Everything was explained and we were consulted if there were changes needed The system is working well and we are very happy with it
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DIANNE L.
KEYSBOROUGH

it was a rather difficult installation but both the A/C installers and the electricians did well. i am annoyed that I missed out on the Mitsubishi Bonus Gift Card worth up to $400 due to the impossibility of accessing the Mitsubishi website which required a Pin which could not be found anywhere. Very poor.
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EMILE R.
MALVERN EAST

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

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

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

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

Our tech Ray did an outstanding job fixing our ducted heating system. It is very obvious that his experience makes him a valuable asset to Coldflow! Thanks for explaining every step of the repair so clearly & for your relaxed & friendly manner! Will 100% rebook a service as it is required down the track! Thanks again!
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SEAN M.
DINGLEY VILLAGE

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

Very glad and relieved I chose Coldflow. Your installer Murray arrived at 7am Monday 21st, was quickly to work with a minimum of fuss. Old Brivis unit and new Braermar unit out and in through the roof. All over by 9am. He showed us how to use the Braemar control unit before leaving. Great job.
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PETER H.
MITCHAM

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

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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MARIAN D.
EDEN PARK

Jared came twice because we had a difficult set-up situation in a rear room with a box gutter. The solution worked out well. David and Daniel were professional and friendly installers who installed without fuss or mess. Sparky (Harold) was also efficient and easy to communicate with. My wife and I are very happy with the installation.
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Andrew K.
HUGHESDALE

We'd highly recommend the team from Coldflow. Great communication, prompt and efficient installation and also great advice regarding the removal of our old gas wall heater. Not something we had considered but well worth it with the government rebate which we hadn't known about. Absolutely love our new Daikin unit too! Thanks coldflow.??
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PETER M.
ASPENDALE GARDENS

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

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

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

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

The two installers where great ( both named Lucas) the installed four in door head and two main units outside. Very please with the end result . This is the second time I have purchased from Coldflow and would not hesitate in recommending you to others.
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Geoff B.
WARRAGUL

I just had my two units installed. Please pass on my thanks to Jared Wates, who provided the quote, and the team that installed the systems today. The installation team worked really hard, double-checked, if not triple-checked, and certainly made sure things were clean when they left. A very professional and courteous team.
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STEPHEN R.
ROWVILLE

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

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

Every step of the process was first class and professional. You did what you said you were going to do, on the days that you promised and the installation was like swiss clockwork. Best service experience I have had in the last 5 years. Special shout out to Shanon who organised superbly from day one.
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DARYL K.
TOORAK

Jared, Lucas and Luke were all very professional, friendly and courteous. We were very impressed with the communication and all were on time for scheduled appointments. They were all just really easy to deal with, we'd definitely recommend Coldflow.
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KATE H.
CHADSTONE

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

Coldflow recently removed our gas ducted heating and it replaced with a reverse cycle air conditioner. The process from quote to installation was simple and quick! Communication in the lead up to and on the day of installation was terrific. They also tidied up after themselves! I wouldn't hesitate to recommend Coldflow to family and friends.
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Madeleine L.
KENSINGTON

We would have liked to be given the option whether to have the smelly chemicals sprayed in the split systems, as the smell lasted for over a week and we would have opted not to have that. Otherwise we are very happy with the overall service and communication from the technician.
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LAUREN C.
RINGWOOD NORTH

The service was outstanding from when i made the first call to the completion, Arman made the whole journey seamless and effortless, Murray the licensed installer was very helpful, and his service was second to non. on time he worked effortless to meet the weather prediction and completed the job in time.
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RAFIK M.
NARRE WARREN

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

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

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