Best Hot Water Systems
Aquatech Heat Pump 🏆 2026
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We decided to switch to a water pump after seeking advice from our plumber to replace our broken existing system. The Aquatech Dynamic X8 was… Read more
recommended by several installers. We went for the 268L which is plenty for our 2 person household plus the occasional visitors. The wifi set up was quick and the app is very easy to navigate and use. We also called the Aquatech helpline with a question and they were very helpful.
EvoHeat EVO270 Hot Water Heat Pump Series 🏆 2026
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Very happy with the EvoHeat heat pump system, performs efficiently and provides plenty of hot water for our house. Really like the timer control functions for managing our energy use through a solar/battery system Show details
Haier Monoblock Heat Pump Water Heater 🏆 2026
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We recently replaced our antiquated electric hot water system with the Haier 330L system. Our old system struggled to provide enough hot water for… Read more
our large household, sometimes we had to resort to filling our bathtub from our kettle just to have a warm bath! Our water usage has decreased as we no longer need to run the tap as long to get hot water and our power bills have also decreased substantially.
Joolca HOTTAP
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Best customer service EVER. Problem solved immediately at no cost or effort to me. Awesome. Show details
Dux Proflo
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We’ve always had Dux hot water systems we are very happy Show details
Hydrotherm
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I cannot really overstate just how poorly this product has performed since we purchased it around 3 years ago. Here in S.E Queensland, throughout… Read more
most of the year when its above 30deg it works ok. Not that you really need much hot water during those 6 months of the year. Around mid may every single year. Every morning I hear "There is no hot water again". Every night "There is no hot water again" From my wife and two young kids.
For all the emails and phone calls I have made to try and rectify the problem. The only attempt to do so was to send a plumber out to reset some thermostatic something or rather in the software which did nothing at all.
The only way I have to ensure there is any hot water, is to go out twice a day and make sure it is forced into the on position in either hybrid or hybrid 1 mode.
The 15 year old Saxon this unit replaced probably didnt even get looked at twice in 15 years. Yet here I am baby sitting this POS appliance twice every single day to ensure the missus and kids can have a hot shower when they want one.
All these pics are after the system has run all day long consuming between 6-10kw/h. Considering the old system used around 9kwh per day and we were told this new system would be around 2.5kwh.....
The company that did the installation did a stellar job I might add, Could not fault their workmanship and they tried to assist as much as they could when we started having issues. But Im not going to continue wasting their time trying to rectify an issue with the product itself. The only real option we have going forward is to move to an IStore or go back to a traditional HWS.
Dux Prodigy 4
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Recently Purchased and installed a Dux 170 Ltr, Hot Water Service, through Bunnings. The whole experience was outstanding and very professional. From… Read more
buying at Bunnings to the Installation. The job was at commenced on the agreed day and finished promptly, with a friendly courteous manner. The Dux system is excellent, quiet and performs above our satisfaction.
iStore Hot Water Heat Pump 🏆 2026
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We had our original Chromagen solar hot water system with two roof-mounted solar collector panels replaced this morning with an iStore 270L Heat… Read more
Pump.
It's only been a day, but our first impressions are excellent. The water is nice and hot, and we've already noticed that hot water reaches our taps much faster than it did with our old Chromagen system. So far, the iStore has exceeded our expectations.
The installation by JR Gas & Water was also first class. Ruan and his partner arrived within the scheduled arrival window, removed the old system, installed the new iStore neatly and professionally, and left the work area spotless.
While it's too early to comment on long-term reliability, energy savings or performance over different seasons, our initial experience has been very positive. Based on our first day with the iStore 270L, we're extremely happy with the upgrade and would happily recommend it.
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Excellent product. Very quiet. Runs for 1 to 1.5 hours per day. Show details
Emerald All-in-One Pro Heat Pump
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I am so pleased with the quality of the Emerald heat pump. It’s been 2 months since the installation. I was so hesitate thinking about replacing my… Read more
32 years gas water system. I heard so many negative feedback about electric hot water. I am glad I took the chance. The heat pump runs smoothly and provides plenty of hot water constantly. It saves me a lot of money. It cost 31cents per day on average. The noise is same as running aircon. It’s sitting outside, so I don’t really hear the noise. The app is great. You can see the water tank capacity and the current temperature. Highly recommended Emerald.
Enviroheat Heat Pump Water Heater
We have just had a new Enviroheat M9 200L Heat Pump Hot Water System installed. Very happy with the system with its easy to use controls both on the… Read more
front display and the wifi app. The unit is extremely efficient and uses less than 1KW which is perfect for running with our solar system and is surprisingly quiet when it is running. It is also has great build quality and is one of the best looking units around. Can’t beat it for value.
EvoHeat EVO150 Hot Water Heat Pump Series
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Tidy quiet efficient unit : I purchased the EVO 150-E. . Delighted Show details
Aether Australia Heat Pump
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I don't think I could ever get excited about a heat pump :). Aether HP270 did not disappoint, unit looks sleek, very straightforward to use with the… Read more
app, and works well with consistent water temp that was set (although a bit early on from install so obviously working perfectly atm, but will defo come back if anything out of ordinary will come out). What's fab is we are now able to control and monitor heating and usage which is a game changer to save up on expensive bills :) We also observed that it retained the temp whilst very cold Melb winter nights. So glad we stumbled on previous reviews that helped us decide which product to use!
Dux Always Hot Continuous Flow
Wow, just had the 21L always hot continuous Flo LPG hot water heater installed to replace a lesser known brand unit that I struggled with for 18… Read more
months that would make up its own mind to ignite. Hot water arrives at the shower, vanity and bath very quickly and as I am on tank water with little pre flow to waste. Very quiet operation. A blessing. Extremely happy. Great price from Bunnings with excellent service from them as well.
Neopower All-in-one Black Diamond
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Beautiful modern unit, minimal noise, works well! Very happy with purchase. Show details
ENEFT All in One Heat Pump
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Very happy with the new heat pump, the installer has done professional work! Show details
Sanden Eco Heat Pump
Sanden 315L heat pump 10 years old and broken down. No support over the phone. Manufacturer insists service can only be conducted by registered… Read more
dealer who isn’t available anyway - a requirement illegal under consumer law. Very disappointing for such an expensive product.
Rinnai Infinity Range
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I recently replaced my old gas storage hot water system with the Rinnai Enviro 32 , and I couldn’t be happier with the decision . We now never run… Read more
out of hot water even with multiple people using it at the same time and the savings on my gas bill has been noticeable . It’s been an excellent investment that’s already paying for itself through lower running cost and outstanding performance . Highly recommend the Rinnai Enviro
Wulfe Heat Pump Water Heater
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Very loud, no connectivity, I would not recommend this to my worst enemy. I tried uploading a video of it. Just junk. 2 months after this review the… Read more
Plumber finally returned and spent 4 hours fixing problems with their install. Now the unit works as intended and no longer keeps our neighbours awake.
Apricus Solar Hot Water System
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Garbage on my roof – Don't go near them, instal a shonky system and then don't enable any contact, a complete scam. The system dumped all the solar heated water then… Read more
refilled the tank with peak electricity and somehow still managed to deliver only cold water for a $6k energy bill. CATASTROPHIC SCAMMERS SHOULD BE SHUT DOWN. I have a worthless heap of junk on my roof - maybe the problem could've been easily rectified - I can't afford another bill to find out. Endless phone calls and messages - I tried countless times for months, years. This was an expensive system. I would've had more hot water from a kettle. Even my skilled electrician couldn't get the junk to work. Tried a booster button and it still just dumped any warm water it heated with the peak electricity. It doesn't take much to answer a phone or a message on a website - THAT TELLS YOU EVERYTHING - THEY REALLY, TRULY DON'T GIVE A DAMM ONCE THEY HAVE YOUR MONEY.
Apricus All-In-One Heat Pump
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Apricus heat pump was installed in August 2025. Had no issues operates as expected, plenty of hot water. Show details
Country Comfort Portable LPG Water Heater
Country Comfort Hot Water supplied the wrong part but would not give a refund despite my returning it at my own expense Show details
Envirosun
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I Purchased a Envirosun 300/40 system with Electric boost for $3.5K in August 2023. I chose Envirosun due to the stainless steel tank, hoping it… Read more
would last longer than a normal steel tank. In February 2026 I noticed the tank was leaking. I don't know how long it had been leaking, but based on the staining it would have been a while. The tank was replaced under warranty within about a week, so good support there. Then in June 2026 I noticed the collector was now leaking. Again I don't know how long this had been occuring. Unfortunately this time there were no panels available, and it was more than a month before it was replaced. They also only replaced one of the 2 panels, so assume I'll need to do the other one soon. Apart from 2 thirds of the system needing replacement in less than 3 years, the system itself worked really well. I rarely have the booster turned on, with the sun producing enough for our needs. Warranty support was good for the tank, but waiting over a month for a panel is not acceptable. Envirosun made a lot of claims about the quality and reliability of their systems, but from what I have seen so far, this is not the case. My previous Solarhart system lasted over 20 years, with only a couple of anodes and valves replaced in that time before the tank eventually ruptured.
Thermal Ark ARK270
Extremely pleased with the Thermal Ark 200 – I am extremely happy with my new hot water heat pump and the service they provided. Paul and his team were quick, friendly & done a very professional neat job. Also great support with any questions I had. I would recommend this company and product. Show details
Neopower Evacuated Tube Solar Hot Water
I purchased a NeoPower ST-EL400L-O hot water system in 2018, and it has now started leaking after only 7 years. When I reached out for warranty… Read more
support, I was told the warranty was void because I hadn’t completed a 5-year service—something that was never disclosed or explained at the time of sale.
NeoPower refused to take any responsibility and offered no resolution. For a product marketed as long-lasting and reliable, this is extremely disappointing. Their warranty policy is vague and unfair, and customer service was dismissive and unhelpful.
I also visited the NeoPower website and found that all links and references to the warranty terms and conditions are not publicly accessible.
Would not recommend—look elsewhere if you want durability and support you can rely on.
Econova Hot Water Heat Pump
Very rude and unprofessional installer. If need to retain your brand reputation please change the installer and hire better ones. Damage the vents while installing Show details
Smarttek Black Smart Hot Water System
- Price (RRP) $349
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I hate this product, it works correctly 20% of the time, the rest of the time it cuts out as soon as it gets warm and water goes cold. You have to… Read more
turn it off then back on to warm it, then it cuts out again. Customer support was no help either, after performing a test the said it was working correctly, which it is not.
Dux Prodigy 5
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Purchase, delivery and installation were professionally organized without any problems. Communication and support from Bunnings, DUX and Hall & Baum… Read more
Plumbing Services were exceptional. The unit was installed and tested promptly. It operates smoothly and quietly without shortage of hot water during the family morning rush. I would strongly recommend DUX, as a perfect choice as the house hot water system. At the end it is the 5 star system.
Stiebel Eltron WWK 222 / 302
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A very disappointing experience with these hot water heaters. New build, first one lasted just over 12 months. A lot of hassling with the service… Read more
department and several weeks of delays before a new unit was installed under warranty. I had asked for my money back instead, but that apparently was not possible. Twelve months on (almost to the week) and the second unit has failed and requires replacing. My understanding is the the WWK series are discontinued and being replaced by the SPH-0 series. I asked if I could pay to have the new series installed but was told that was not possible and so now here we are waiting for a week without hot water for a discontinued hot water unit that will most likely fail again. I would never recommend Stiebel Eltron, the poor quality of the system is just one aspect, but a company culture that is not customer focussed is the real nail in the coffin.
Neopower All-in-one Black Shield
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This is an amazing heat pump hot water system. Full 320ltr capacity is more than enough for the family of 4. Efficient system and light on back pocket.
Types of hot water systems
Heating water for use in the bathroom, kitchen, and laundry uses over a quarter of the average household’s energy, which is why it’s important to carefully consider what kind of hot water system is right for you.
You’ll have to first decide what kind of heating method you want to use for your hot water system: gas, electric, solar, or heat pump.
Gas hot water systems · See all
Gas is quite an efficient energy source, so it can be a good option if you have a natural gas connection. Natural gas is significantly cheaper than LPG.
These systems are usually installed outdoors because they need adequate ventilation, but they can be installed indoors with a flue.
Electric hot water systems · See all
Electric water heating is relatively cheap to buy and install, but ongoing costs can be expensive. However, if your meter includes off-peak rates, then this should be cheaper.
Solar hot water systems · See all
A solar hot water system needs to be installed in a sunny spot for it to be efficient. This means that they do tend to work better in certain parts of Australia, particularly Queensland and the Northern Territory. You might even want to buy a larger tank for days with less sun or when you want to use more hot water.
Most of these systems will still have either a gas or electric booster to ensure that hot water is always available, regardless of the climate.
Heat pump hot water systems
Heat pump systems use electricity to transfer heat from one place to another rather than directly generating heat. These units need to be installed in a place with good ventilation, generally outdoors. Heat pump models can save you up to 80% on the cost of hot water compared to an electric storage system.
Storage vs instantaneous hot water systems
A hot water system can be either an instant system or a storage tank system.
Instant systems
Also called continuous hot water systems, these only heat water when they're needed. They aren’t actually instant, but they usually just take a few seconds before you get hot water. Most models use gas, but you can still find electric models, which are typically only designed to heat water for a single water outlet.
A continuous flow system can be more suited to smaller households, as they’re cheaper to run and more practical than having a storage tank.
f you’re considering an instant hot water system, then you should consider its flow rate. You should opt for a higher flow rate if you have many water outlets in your home. A general rule of thumb is to get a flow rate of around 22 to 24L per minute for a house with two bathrooms.
Storage tank systems
These store a certain amount of heated water that can then be used throughout the day. Most gas, electric, solar, and heat pump systems use a tank.
They’re generally more cost-effective and so can be suited to households that use a lot of hot water; you just need to ensure you get a large enough tank to ensure the last in line for a shower isn’t left in the lurch mid-rinse.
If you have off-peak electricity available to your home, then these systems can take advantage of these cheaper tariffs.
These tanks are insulated, but it’s still a good idea to install them in an insulated or sunny place to minimise heat loss.
What to consider when choosing a hot water system
There are a few other things you should consider when shopping around.
Your household size and energy use
Understanding the hot water needs of your household is key to getting the right hot water system. An undersized system means that someone will probably miss out on a hot shower, while a system that’s too large will mean you’re paying for something that you’re not fully using.
The average Australian uses around 40 to 50L of hot water per day - more if you take long hot showers or often use hot water to wash clothes.
Here’s a rough size guide for water heaters, but you should also consult the manufacturer of a hot water system you’re considering buying as well as seek advice from an installer.
For storage tank systems, consider the number of people in your household:
- A 1-2 person household could be fine with a small storage tank of around 90L.
- A 4-person household will need around 135-170L.
- Households of 5 people or more may find it more economical to find a large tank of between 200-300L than install multiple continuous systems.
For continuous hot water systems, consider the number of hot water outlets in your home and peak usage:
- A 2-bathroom household will need 22-24L/min flow rate.
- If you expect 2 people to be showering at the same time, you need at least a flow rate of 14L/min.
- There’s also the option to install multiple systems and have them in different parts of your home.
Energy efficiency
The most efficient type of hot water systems are heat pump and solar water heating systems.
If you’re shopping for an electric storage system, a gas storage system, or an instant gas hot water system, look for Minimum Energy Performance Standards (MEPS). You may see energy efficiency ratings on gas systems, but these aren’t government regulated.
Price
Excluding installation, prepare to pay the following upfront:
- Gas hot water systems often cost between $900 and $2000.
- Electric hot water systems usually cost somewhere between $500 and $2000.
- Solar hot water system prices can vary a lot, but usually cost between $4000 and $8000.
- Heat pump models range from $2000 to $4000.
Hot water system installation costs vary a lot depending on the job and system you opt for. If you’re switching out your current hot water system with one of the same capacity and in the same location, installation typically ranges from $300 to $700. If you’re moving the system to another location, then you may have to pay between $1100 and $2500 depending on what kind of plumbing and electrical work is required.
You should also check for warranties. While these vary, most hot water systems should come with a warranty of at least 7 years - the longer the warranty, the more the manufacturer backs the quality.
Look for government rebates and incentives
There are a range of incentives offered by the federal and state governments - such as the federal government’s Small-scale Renewable Energy Scheme - for households to switch to energy-efficient hot water systems, particularly solar and heat pump systems.
A hot water system installer may also be able to tell you about rebates that are available to those living in your area.
Thank you for taking the time to share your… Read more