GAS HOT WATER SYSTEMS

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Rinnai Infinity Confintuous Flow Infinity 16

ABOUT GAS HOT WATER

Gas hot water systems burn gas to heat water which generates far fewer greenhouse gases than using electricity from the grid. Gas systems can come in either a gas storage water heater, or a continuous flow/instantaneous water heater.

Gas storage hot water systems will usually have a continuously burning pilot flame which ignites a burner to heat the water in the tank when it is required. Usually the unit will have a thermostat which tells the system to heat the water in the tank if it drops below a specified temperature.

A continuous flow or instantaneous gas hot water system doesn’t have a storage tank as it simply heats the water via a gas burner which is activated when a hot water tap is turned on in the house. It only heats the amount of water that is required instead of continuously heating a full tank which means they can have large energy and cost savings. More importantly, what this means for the consumer is that with a continuous flow system you will never run out of hot water.

For a detailed explanation on how all types of gas hot water systems work see here: https://www.yourhome.gov.au/energy/hot-water-service

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PROS AND CONS

PROS

Between 5-6 star energy efficient
High system warranties
Low maintenance
Generally lower purchase cost
Available in LPG or natural gas
Optional temperature control (continuous flow only)
Continuous, never-ending hot water (continuous flow only)
Slim line and wall mounted (continuous flow only)
Hot water during a power outage (gas storage only)

CONS

Mid-range usage costs
Strict install requirements
Lower water pressure in colder temperatures (continuous flow only)
Reliant on electric ignition (continuous flow only)
Don’t work well with water saving shower heads (continuous flow only)
Require a constant pilot light which can be blown out (gas storage only)

OUR RECOMMENDATIONS

If you’re looking at upgrading your current gas system or connecting for the first time, we recommend installing gas continuous flow. With higher system warranties, 6 star+ energy rating & optional temperature control, this style system can suit the largest or smallest of families, only heating the water that you use.

Love a long shower? Never do you have to worry about running out or fluctuations in temperature as the water is heated as it flows through the system.

Temperature control provides safety & comfort to those with young kids and also saves on water & gas usage. Set your controller anywhere from 37 up to 50 degrees without the need of turning on a cold tap.

CHECK OUT OUR LATEST GAS HOT WATER DEALS

RINNAI INFINITY 16 FROM $1,350 inc GST*

Not connected to gas? Connect through us and receive over $750* in rebates off of the supply and install of new Rinnai Infinity 16 gas continuous flow hot water system thanks to Australian Gas Networks!!*

Already have a gas system that isn’t working like it used to? Get a new Rinnai Infinity B 16 from $1,350 supplied and installed inc GST.

LEARN MORE

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TERMS & CONDITIONS

Only available in the greater Adelaide area subject to availability. Offers valid until 30th November 2026 unless Scheme or offer is changed prior.

*Available to existing households replacing a continuous flow gas hot water system. Installation cost excludes external weatherproof power point & subject to onsite inspection. ^Visit rinnai.com.au for full warranty terms and conditions.

All installation quotes are subject to site inspection. Customers must contact HOT WATER COM AU to find out if they are eligible for the offer based on their property’s existing set-up. Rebates vary based on the property’s energy connection status, location (based on climate zones) and model of the new system being installed. Other tank sizes, fuel types and brands are available upon request. Offer only available on supply and installation of the system by HOT WATER COM AU or their accredited representative; all REPS credits created under these offers must be assigned to MAC Trade Service’s (MACTS) obliged Energy Retailer partner.

INTERESTED IN A GAS HOT WATER SYSTEM?

Get in touch with our expert sales team for a free, no-obligation quote. Still unsure? Give us a call with any questions you may have and our team will get you into the best suited system for you and your home.

Excellent

Based on 512 reviews

17 hours ago

Booked in a job and done within a week. Great service and the installation from Ken was top notch. Very happy and no more gas…..thankyou

Hannah Shaw

3 days ago

Priscila Sanchez

1 week ago

Glenn Minear

2 weeks ago

Amazing professional service from Nat and her team with competitive pricing .I would highly recommend.

Response from the owner:Thanks Glenn! We'll be sure to pass your kind words onto Natika and we appreciate you taking the time to leave such a nice a review. Have a great weekend :)

Craig Oliver

3 weeks ago

New Haier 330L heat pump installed at a good price to replace an old gas unit. It runs from our solar system and we have removed the gas connection at the meter, meaning we no longer need to pay for a gas service charge. The guys turned up on time, had it installed in a few hours and die a nice neat job, and although the unit itself looks a bit like a Dalek it sits behind a fence where nobody will see it.

Response from the owner:Thanks so much for taking the time to share your experience, Craig. We're glad the installation went smoothly and that you're already seeing the benefits of switching from gas to a heat pump. We hope you enjoy the savings for years to come!

salt spork

1 month ago

Response from the owner:Thank you for taking the time to leave a review. Have a lovely weekend!

Sean Simpson

1 month ago

This company i cannot thank enought, they were so honest and up front about everything. Very friendly staff and tradespeople very professional & friendly personnel. You saved us when we needed you the most cannot thank you guys enough 🙏

Response from the owner:We truly appreciate your kind words, Sean. Helping customers through stressful situations is what we're here for, and we're delighted our team could provide the support and service you deserved. Thanks again!

Hugo Albrecht

1 month ago

Great work! Got water tank with heat pump installed. Runs perfectly well 😄

Response from the owner:Hi Hugo, thanks so much for the great review! We're glad your new heat pump system is running perfectly, and we appreciate you choosing us.

Annie Burns

2 months ago

I am very happy with my experience of using this company.From the start they were prompt, helpful and thorough.The work was done efficiently and expertly. All the staff and tradespeople were approachable and happy to answer any queries.

Response from the owner:We really appreciate your thoughtful feedback, Annie. It's wonderful to know our office staff and installers made the experience easy and informative from start to finish. We'll be sure to pass this on to our team :)

David Franklin

2 months ago

These guys provided top service and a great price for my replacement hot water system. I ordered late afternoon and the system was installed and working the next morning. Highly recommended

Response from the owner:Hi David, we really appreciate your recommendation! It's great to hear you were happy with both the price and the fast turnaround. Thanks for trusting us with your hot water replacement.

Niall Fay

2 months ago

Installed a heat pump hot water system and removed my old gas tank system. Thorough, friendly and helpful. Great work 👍

Response from the owner:Thank you for the great feedback Niall! We're glad our team could provide a thorough installation and make the experience an easy one. We hope you enjoy the benefits of your new system.

Isabel W

2 months ago

Reached out to replace our water heater since the old one broke down. Right now definitely not the best time for a hot water heater break down under this chilly weather. These guys were prompt to reply, gave us quote with great transparency and patiently replying our enquiries. Superb communications! Quote was reasonably priced, they recommended the heater that’s suitable for my household usage, and the job was done efficiently and neatly. Really delighted with the new water heater and the staff professionalism. Can’t recommend enough to anyone who’s looking for professionals over water heater issues.

Response from the owner:Thank you so much for your detailed review! We know losing hot water during cold weather is never ideal, so we're glad we could get everything sorted quickly and make the process as smooth as possible. We really appreciate your recommendation.

Connie

2 months ago

Very pleased with the hot water service, they did a great job replacing our pipes, they took less time than quoted and an overall top job, the young men were polite and friendly too. Highly recommend. Would not hesitate using them again. Thanks!

Response from the owner:Thanks so much for your kind words! We're delighted you were happy with both the workmanship and the service, and it means a lot to know you'd choose us again in the future.

Seb Freeman

2 months ago

With much relief we replaced a 16 year old hot water tank just before it exploded! The lads from HOT WATER COM AU were very professional when installing. We're super pumped so far! (pump intended)

Response from the owner:We really appreciate your review! Replacing an ageing system before it fails is always a good feeling, and we're so pleased our team could help. Thanks again for choosing us :)

Simon Michie

2 months ago

Great service, communication and value for money

Response from the owner:Thanks so much for taking the time to leave a review, Simon. It’s fantastic to hear you had a positive experience with our team from start to finish.

David Youers

3 months ago

Ken, Andrew and Ethan did a great job of removing the old solar hot water service and installing the new one, under difficult circumstances. Very quick and efficient. Thank you

Response from the owner:Hi David, thank you for taking the time to leave such a lovely review. We'll make sure to pass on your feedback to the boys, and hope you have a lovely rest of your week!

Graham Fordham

3 months ago

Team were great to deal with. Online enquiry response was very prompt and work completed with no fuss. Would highly recommend them to anyone needing their services.

Response from the owner:Thanks Graham! We always appreciate our customers taking the time to leave a review, and are grateful for your recommendation. All the best!

peter shea

3 months ago

Suddenly no hot water in the morning! Fixed by mid afternoon with a new installation. Great comms, speedy service and a competitive quote. Thank you!

Response from the owner:Thank you for the great review! We know losing hot water unexpectedly can be stressful, so we’re glad we could get a new system installed quickly for you. All the best Peter :)

Philip

3 months ago

Decided to have our 18 year old Bosch 17e hot water heater replaced today with a Rinnai B20. Provided a competitive quotation, the complete experience and customer service has been excellent. The person attending (Ethan) provided fantastic service, and provided a quality installation, and excellent customer service. Can highly recommend this company.

Response from the owner:Thanks so much for your review! We’re pleased the whole replacement process went smoothly for you, and we’ll make sure Ethan receives your positive feedback.

Alex Trinca

3 months ago

Fantastic experience. Natika and the rest of the team were extremely responsive and supportive, helping us through the process of delayed rebates, even lending us a spare hot water unit due to rebate delays. It's really nice to know that this high level of customer service and support still exists in SA. Highly recommend. Thanks again team

Response from the owner:Hi Alex, we truly appreciate your kind words and will be sure to pass them onto Natika and the crew. Delays can be frustrating, so we’re pleased our team could assist and keep things moving while ensuring you still had access to hot water. All the best, and have a nice day!

Mark

3 months ago

Excellent job. They made sure I got all my discounts and rebates. Very happy. :)

Response from the owner:We appreciate your feedback and are glad you’re happy with the installation. Helping customers maximise their rebates and savings is something we’re always happy to assist with. Have a lovely week! :)

Peter Zeffert

4 months ago

From initial contact through to the prompt installation, the entire team were extremely friendly, helpful, and very efficient in ensuring the heat pump install went as smoothly as possible. From Sales to the final install, they all deserve their Five Star rating, and can highly recommend them for your hot water needs.

Response from the owner:Hi Peter, we really appreciate you taking the time to share your experience. It’s fantastic to hear our sales and installation teams provided friendly and helpful service throughout the entire process and we'll be sure to pass it on to them. Thanks!

Daniel Swalling

4 months ago

Professional job. On time and on budget.

Response from the owner:Thanks for the review! We’re pleased you were happy with the installation and overall experience, and we appreciate your support.

Catherine Clarke

4 months ago

recommends

This was a great company to deal with. They were really helpful from the quote and admin side, explaining HWS options clearly and providing detailed quotes for each, including any rebates. The tradies turned up on time, and despite the difficulty of getting my old solar HWS off the roof, did the job efficiently and with no complaints. They were very solutions focussed, polite, friendly and helpful at all times. I am very happy with my new 250L heat pump HWS. I was also very happy with the level of service provided which made it a stress free process. I am a happy customer and would highly recommend this company.

Response from the owner:Thank you so much Catherine for your lovely review, it was our absolute pleasure to help! I hope you've had a wonderful Easter.

Carmine Scalfino

4 months ago

Very happy to recommend. Best price, great communication throughout process. Arrived on time completed install minimum fuss. No issues from choosing system to the final install and removal of old unit. No hesitation to use again

Response from the owner:Thanks for the fantastic review! We’re pleased we could make the process straightforward and stress-free from start to finish, and we truly appreciate your support and future recommendation.

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1300 153 025