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.

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CHECK OUT OUR LATEST GAS HOT WATER DEALS

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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.

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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
HOT WATER COM AU5.0
Based on 534 reviews
Carl Hasselgren
6 days ago
Very happy with the supply and installation of my heat pump water heater. Good quote and they had the system up and running in no time. Took the old unit away and left no mess behind. Took care of claiming the government rebates. Would recommend this company.
John D
1 week ago
I found this business to be outstanding. Office staff, installation team all friendly, highly trained and efficient. On top of that competitively priced and had the accreditation to handle my concession, compliance etc entirely. Great result, thank you.
Marie Wilde
2 weeks ago
From start to finish excellent service & communication. Replaced old electric to a Heat Pump system Haier Monoblock 250L. Happy with installation & finish, very professional company to deal with.
Peter Mazurek
3 weeks ago
Hotwater.com.au replaced our old gas storage tank with a heat pump. Communication throughout the process was excellent. The work was completed without hassle and at a very competitive price. I highly recommend their products and service.
Julie Brown
3 weeks ago
We changed an instant gas water unit over for a Haier heat pump water heater through Hotwater.com. From our first inquiry, the measure and quote and the final installation the service received was excellent. All staff were friendly and professional. I would highly recommend this company.
l Bryer
3 weeks ago
Highly recommend this company they have skilled installers who are respectful and know their job as well as a terrific in house team to answer your questions! One of the best companies I have dealt with
Doug Kennedy
3 weeks ago
Very happy with the whole team at Hotwater.com. The office staff were very quick to respond with any queries throughout the quoting and installation process. Price was very competitive. We dealt with Mark throughout the supply and installation of our new heat pump. Very polite, engaging and professional, took the time to ensure that any concerns or queries we had were addressed. The installation was amazing, plumbing was very neat and well present. Thank you Mark and Braden on great job.
Elise Kolic
1 month ago
Very happy with hot water.com.au. We swapped an old gas hot water storage tank over to a continuous flow unit. They provided a free quote and good price, followed up by excellent workmanship. Would highly recommend.
Response from the owner:Thank you Elise, we're so happy to hear your experience was so positive! We're glad to hear you've enjoyed the process! Thank you again for choosing to work with us to replace your hot water unit.
Dianne Holland
1 month ago
Great service from sales to installation
Response from the owner:Thank you for taking the time to leave such a positive review Dianne!
Ross
1 month ago
The service and professionalism of the staff at Hotwater.com.au is excellent. I have used them at 2 properties, and both times they provided a fair market price with great results. They are also very good at explaining what needs to be done and why for more complicated replacements. I would highly recommend them to anyone looking to replace their hot water service.
Response from the owner:Thank you so much Ross! We're so glad to hear you had such a positive time with our team and that the unit you've received is giving you such great results!
Excellent service from my first call to Natika, (exploring my options to replace a gas water heater) - Natika was very knowledgable and provided useful advice which assisted my decision. This was followed by the prompt installation of a small electric water heater on loan pending installation of the full replacement; this was not expected and much appreciated! I opted for a Rheem Ambipower Heat Pump (reasonably priced including a current special by Rheem) which was installed by Mark the following week; the installation was excellent without any issues and was very neat with great communication about certain aspects (location, pipes to external unit etc) which I appreciated. Mark is very personable and was patient and prepared to answer all manner of questions. I am not yet in a position to provide a review of the Heat Pump itself (all is good so far) but I highly recommend this business and will gladly use them again!!
Photo from customer review
Response from the owner:Thank for for all the kind words and for taking time out of your day to leave us such a kind and positively glowing review! Our technicians and office work hard to ensure the experience for everyone is a positive one and seeing this makes the effort put in so worth it! This is something we love hearing and will pass onto our staff!
Susi P
1 month ago
We had recently our new hot water heater installed by HOTWATER.com.au.and we are totally happy with the overall result. Initially we wanted to replace our gas hot water system but due to some complexities, needed to look at other options. We decided on the Haier Heatpump system and it’s working amazingly. The service was first class, from quoting to installation. Everyone was super helpful and the communication throughout the process is excellent. I would highly recommend this company for anyone looking to replace their hot water system.
Response from the owner:Thank you for such an extensive and positive review Susi! We're so happy to hear that your time with the Haier has been going well and you're so happy with the result! We strive to make the entire experience enjoyable and it's so rewarding to hear that we've provided the exact thing we work for! Thank you!
Warwick Piper
1 month ago
This business really knows how to do business!! Courteous, prompt, punctual (how rare is this these days!) and professional. Can’t recommend them highly enough!!
Response from the owner:Thank you so much Warwick! These reviews are the ones we love sharing with our team to highlight that what we're doing is working and leaving a positive impact on each person we work with!
Jas
1 month ago
No complaints at all. Were responsive, friendly, price was good and got job done asap. Very happy with service.
Response from the owner:Thank you Jas, we're so happy to hear you have enjoyed the entire experience!
I've just recently had the Haier Monoblock Heat Pump Water Heater installed. The installers, Hotwater.com.au, were efficient and helpful, getting the job done smoothly in no time. The product was installed a couple weeks ago and so far it has been great, I've had no issues with the temperature and the pressure. I'm running it in ECO mode so it is as efficient as possible. I previously had gas just for hot water so I will no longer be receiving gas bills, saving me over a thousand dollars a year. I have solar and a battery, so running the heat pump costs me nothing now. Great investment, it will pay for itself in no time. Extremely satisfied and happy I made the decision go forward with the installation of the Haier Monoblock Heat Pump Water Heater.
Response from the owner:Thank you for such a thorough and extensive review Luke, we're so glad to hear you're having such a good experience with your new Haier so far. It's also so great to hear your experience with out team was such a positive time! Thank you for choosing us, have an excellent week!
Lauren Dawson
2 months ago
A big thanks to Mark and the team! Fantastic service from start to finish. The hot water service removal and installation was completed quickly and the communciation was excellent. The installers took the time to explain everything clearly including how to get the best efficiency out of our new heater. Really impressed with price and quality of the installation. Highly recommend! ⭐⭐⭐⭐⭐
Response from the owner:Thank you so much for such an amazing review Lauren! We're so happy to hear that the experience was positive from start to finish. It's always so great to hear that our technicians have provided someone with such excellent service, it really makes these reviews so much greater! We hope you've enjoyed your hot water so far. Have a great week!
Tony
2 months ago
Great job at a great price. Very happy with the hot water upgrade which was completed promptly by polite and professional trades people.
Response from the owner:Thank you for taking the time to leave such a great review Tony! We're glad to hear you're happy with your new hot water unit.
Great company to work with, excellent service, seamless installation, good value, highly recommend.
Response from the owner:Thank you for such a positive review Henrietta! So happy to hear you enjoyed the process as much as we did!
Steph Teh
2 months ago
100% would recommend. Super happy with my heat pump install. Super clean and the team were very efficient, friendly and professional through the whole process. They organised and helped figure out all the rebates too. Huge thanks to the team at hot water!
Response from the owner:Thank you Steph! We're so grateful to get such a glowing review. We're always happy to hear that the whole process was stress free and easy!
Mile Fedoric
2 months ago
They were very friendly and professional with their work. I was very happy with their service. I would highly recommend this company for future customers.
Response from the owner:Thank you so much for the positive feedback! We're so happy that your experience was such a positive one!
Paul Wilkins
2 months ago
We were delighted with the prompt and professional support displayed by Mark and his team. He provided an honest assessment of our requirements and the installation of our Haier Heat Pump was faultless which is more than could be said of the gas system it replaced
Response from the owner:We're so glad to hear you're loving your Haier so far! Thank you for leaving such a glowing review, it's great to see that you've had such a positive experience!
Harry Joyce
2 months ago
Good sales guidance, and then a very proficient installation team quickly and thoroughly did their work.
Response from the owner:Thank you Harry, we're so happy to hear how positive your experience was from top to bottom!
Mike Wilson
3 months ago
Completely professional crew that installed our new iStore water heater, gave the overview we needed to get oriented to the owner's manual. They were able to find ways to make a difficult location work safely when other companies couldn't.
Response from the owner:Thank you for sharing your positive experience with us Mike. We're so glad we could help and will be happy to assist if you are in need of a system in the future :)
Very impressed with Mark and his team who replaced our hot water heater with a heat pump system. They were professional, efficient and friendly, and the after-sales service exceptional. Highly recommend this company for any hot water needs.
Response from the owner:Thank you for the feedback Brent, we're so happy to hear how positive the whole experience was for you! We make it our number one focus to deliver the highest possible customer service to each and every person, so this feedback is fantastic to hear!
M fitzy
3 months 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
Response from the owner:Thank you for leaving such a positive review! We're so glad to hear you're happy with the works and in particular, our technician Ken.

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