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Hot Water – Instant
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Instantaneous / Continuous Flow Hot Water

An instant gas hot water system or a continuous flow hot water system is a tankless hot water heater. This means consistent hot water when you need it. These systems are generally wall-mounted and compact unlike a hot water tank that are floor-mounted and large.

Instant hot water systems give you the convenience of having extra guests and not running out of hot water. Plus, running a bath after a long day without worrying if there is enough hot water.

Most instant hot water systems use gas however electric models are also available. Generally, they can be cheaper to run compared to storage tanks, as there are no heat loss issues.  A 6 or 7 Star rated instant gas hot water works more efficiently which will save money, energy and reduces CO2 output.

How Do Instant Gas Hot Water Systems Work?

As an instant gas hot water system, it doesn’t hold a tank. It warms the water as it passes through a heat exchanger when hot water is needed. 
This way, there is a consistent and endless supply of continuous flow of hot water when you need it.

Why Make The Switch
To Instant Hot Water?

If you are looking to make an investment to your home, a tankless water heater is a good place to start. Getting hot water when you need it while also saving energy is a win-win proposition.

Tankless water heaters take up much less space than storage water heaters (hot water storage tanks) as they heat the water directly. Traditional storage tank are kept full of water at a minimum of 60°C to prevent bacterial growth, tankless water heaters only heat the water when you need it.

When you turn on the hot water, the cold-water travels through a pipe and into the tankless water heater unit where it is heated by a gas burner or an electric element. This allows you a constant supply of hot water.

On average, tankless water heaters can provide 7 to 14 litres of hot water per minute. Also, gas-fired tankless water heaters can produce higher flow rates than electric models.

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6 Benefits Of A Continuous Flow System

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Cost Effective

As only heats water when needed. Never runs out of water.​

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Temperature Control

Each time the tap is turned on the water is heated instantly

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Sleel & Compact Design

Flexible installation options compared to traditional water heaters

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6 Stars Efficiency

Superior 6 stars efficiency across the range of 16-26 units

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Extensive Options

Extensive accessory options available – such as additional water controllers for convenience and safety

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Power Source Flexibility

Comes in gas, LPG or electric to suit your needs

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Why Our Community
Trusts Alliance?

Licensed, insured techs for your protection​

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Inhouse trained techs,
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Upfront & honest
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After care, Lifetime workmanship warranty*

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We go the extra mile & focus
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100% Satisfaction, or we'll be back to make it right!

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What our customer's are saying

Excellence
based on 900+ reviews

Alliance is an amazing company. I thought professional service like this had disappeared years ago. Not only that - but all team members really know their stuff. From the initial sales call with James to comms with the office, booking the day doing... the install and cleaning up afterwards everything went like a training movie. How do you get everyone on the same page??? All I can say guys is thank you for an outstanding job - I'd hate to be your opposition.read more
A great professional. Company from quote to installation. Kevin, Dragan and Mahran were awesome. I've never had better service with other people. They were quiet and cleaned up. They also problem solved. Exceeded my expectations. Huge Thankyou to... them.read more
These guys also do electrical work. I had my switchboard replaced by Chistopher D. last week and it was a rather positive experience: he showed up on time, budgeted time correctly (especially given old building and annoying switchboard location) and... answered my (many) questions.read more
From the moment I called, I was so impressed with the business and the people. Shazim came out today. He was honest, polite, resolved the issue quickly and gave me a list of things that needed to be done without being too pushy and I truly... appreciated it. Would highly recommend them 👌read more
Problem was sorted out quickly and efficiently.The technician was helpful and courteous.
Highly recommend alliance for air-conditioning services. Kathrine was super fast and responsive to enquiries and booked me in the next week. Gabriel came and serviced both my air-conditioners. He was on time, professional and explained everything to... us afterwards. Thanks again for the great service. It’s always hassle free.read more
Nam and Andy did a great installation. They were on time, very friendly and took a lot of care inside my home. The installation was very good and very neat. Everything went smoothly and everything was tidied up on completion. Highly recommended. Paul
Tommy & Qair arrived on time, they were very courteous and friendly. Very pleased with the installation of our Daikin aircon, the cost, all areas were left clean and tidy. Tommy explained everything clearly on the use and maintenance. Highly... recommend Alliance Service Group, Alexandria.read more
Inspection of Air Conditioning unit was thorough. Photographs were sent to my email along with work to be carried out.
I couldn’t be happier with the installation of the air con by Alliance. Their team worked exceptionally hard in order to complete and also made sure our home was taken care of. The clean up after was better than the house was before! Ken, Shadi,... Daniel and Danyan were amazing along with the 2 other teams who joined to get the job done. Thanks to all who assistedread more
BH, Mahram, Renda, and Peter, James and Chris provided a wonderful service. They were punctual, courteous and professional. We’d recommend their service.
Thanks to Kevin and his team, including Dragan, Peter, mahran, vasgil for a great job and for cleaning up afterwards also. Much appreciated and recommended.
The Alliance guys were excellent. They replaced our old ducted air conditioning system, tested everything, showed us how to operate it (including setting up the iPhone app), and cleaned up everything afterwards. They arrived promptly at the expected... time, worked a very long day for the first day to get the job close to completion, laid carpet protection where they walked in the house, and were very polite and helpful. They've just finished today and the system seems great. Thanks for being so professional Galvis, Qais, Matthew, and Peter - we appreciate your help and expertise.read more
Air conditioning installation was very smooth and effective. The team Tommy, Adam, Zac, Galvis and Alex were all very friendly and respectful. The air conditioning is terrific and we are quite satisfied with it. Thank you for all the help and we... will be sure to contact you again in the future for any services required.read more
Very efficient and in line with my expectation
Excellent, rapid response sending engineer out to check function and safety of my aircon unit - exposed to water in the recent Sydney weather incident (ie, flooding due to heavy rain)
Cannot recommend this business highly enough. Everyone I spoke to in their office was able to handle my query promptly. The technician Tony who installed my new air conditioner and his helper turned up on time and were highly skilled and great... communicators. Don’t go elsewhere.read more
Alliance Climate Control installation of my new ducted A/c was completed professionally and efficiently today. I felt Ken, Shadi and Daniel were courteous and respectful of my home throughout the process and ensured that I was satisfied with the new... units operation, installation and cleanup when they had completed their work. A quality operation.read more
Today we had our existing airconditoning system removed and replaced with a new one.The supply and installation was a refreshing experience and was executed professionally courteously and without any problems whatsoever.In particular the... technicians that preformed the work - Ken, Shadi and Daniel were absolutely marvelous and are a credit to their company.I cannot recommend Alliance highly enough. You just cannot go wrong with these guys.Thank you so much for the wonderful service you provided.Ray and Maureen Goldsteinread more
Really impressed with Matt and the team. Punctual, polite, did the job, explained the new system very clearly and did a spotless cleanup on both days. And very friendly to the family dog.Thanks very much guys.
Ken, Shadi, Daniel and Carl did a 5 star job-very experienced, efficient and careful
We recently had all our old aircon units replaced with Alliance and the whole Install from start to finish was super smooth! Alex was informative on what we needed at the quote stage and organised a speedy install for us. Our installers Andres,... Steven and Adam were punctual, ready to go on the day and informed us of the process.Very friendly and clean, would recommend Alliance to anyone.read more
Service was excellent! The enquiry and process of booking was so quick and easy. They were quick to find us an appointment and were clear with their communication. Our installers were Kevin and Dragan who were fantastic. They were efficient,... protected all the furniture and left the place clean and tidy. We would recommend Alliance CC!read more
Shadi and Ken were amazing, as well as Peter, the job was done quickly, they paid attention to detail and were all very friendly, yet professional. They discussed the work in detail and really wanted me to be happy with the final outcome, which I... am. Will be recommending you guys to everyone.read more
We had an air conditioner installed (by Matt and Maran) and also a Switch Board Upgrade (by Chris and Joe).We were very happy with the installation process and the outcome. All the guys were very knowledgeable, professional and so helpful in... dealing with any challenges we faced with installations in an older home.This is the second air conditioner installation I’ve organised for the family with Alliance and all of their employees I’ve dealt with have been nice people and very helpful in ensuring a great outcome. We will continue to liaise with Alliance for our annual air conditioner maintenance.I wouldn’t hesitate to recommend Alliance and the guys who worked on our recent installations and also Kirk and Zac who helped make it all happen.read more
The boys were amazing, very efficient and clean.
Ken and his team, Kane, Shadi, Adam, Daniel and Qias did a great job. They were efficient and communicated effectively. Cleaned up and explained how to use the system. Thanks for the hard work.
friendly and professional service ..highly commendable .Thanks
Alex was fantastic with his service. Very careful, explained everything and provided options for the types of service. Would definitely recommend this company. Professional and informative.
Nam & Andy did a great job with our installation. They were on time and finished up early with all working perfectly. Thank you.
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