Best Hot Water Systems

Nothing can sour your day quite like a shower turning cold, which is why you want a reliable hot water system that’s suited to your household. We go through what to consider when looking for a water heater, including your water use, energy efficiency, costs, and more. Continue reading...


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Rating

Price$299.00 to $8,604.74
$299.00
$8,604.74

Type

Max Water PressureAt least 200 kPa
200 kPa

300 listings

Best Hot Water System

EvoHeat EVO270
  • Award Winner 2022
  • 2021
Electric Hot Water Storage Systems

EvoHeat EVO270

4.8 from 591 reviews

With its 270 litre hot water storage capacity, the EVO270 is a prime pick for households with up to six people. It's also listed as an energy efficient water heater by the Clean Energy Regulator, a government body responsible for reducing carbon emissions in Australia.

Efficient to run
Quiet
Gives consistently hot water
  • Build Quality
    4.8 (387)
  • Value for Money
    4.5 (380)
  • Cleaning & Maintenance
    4.7 (324)
  • Noise Level
    4.2 (396)
  • Temperature Consistency
    4.8 (349)
  • Heating Speed
    4.7 (355)
  • TypeStorage
2nd Best Hot Water System
Joolca HOTTAP
  • Award Winner 2022
Gas Continuous Hot Water Systems

Joolca HOTTAP

 · includes 5 listings
4.6 from 468 reviews

With just the flick of a switch, the Joolca HOTTAP gives you hot water at your desired temperature wherever you are.

Almost instantly gives hot water
Great water pressure
Easy to set up
  • Build Quality
    4.6 (254)
  • Value for Money
    4.5 (255)
  • Cleaning & Maintenance
    4.7 (241)
  • Noise Level
    4.3 (190)
  • Temperature Consistency
    4.5 (208)
  • Heating Speed
    4.6 (211)
3rd Best Hot Water System
Dux Prodigy 4
  • Award Winner 2022
Gas Hot Water Storage Systems

Dux Prodigy 4

 · includes 5 listings
4.5 from 162 reviews

With a 4.2 star energy rating and new burner technology that means faster recovery rates, the Dux Prodigy 4 lets you have reliable hot water when you need it - all without hiking up your power bill.

Provides steady, strong hot water
Simple installation process
Energy efficient
  • Build Quality
    4.8 (123)
  • Value for Money
    4.8 (133)
  • Cleaning & Maintenance
    4.7 (103)
  • Noise Level
    4.8 (116)
  • Temperature Consistency
    4.9 (119)
  • Heating Speed
    4.8 (118)
Hydrotherm
Electric Hot Water Storage Systems

Hydrotherm

 · includes 4 listings
4.6 from 221 reviews

Using heat pump technology, the Hydrotherm Hot Water System lets a large household have hot water up to 70°C without breaking the bank.

Price (RRP) $1,495.00 to $1,795.00

Economical
Reliable for larger households
High build quality
  • Build Quality
    4.7 (135)
  • Value for Money
    4.7 (138)
  • Cleaning & Maintenance
    4.7 (123)
  • Noise Level
    3.9 (133)
  • Temperature Consistency
    4.7 (124)
  • Heating Speed
    4.5 (126)
iStore Air to Energy
  • Award Winner 2022
  • 2021
Solar Water Heaters

iStore Air to Energy

 · includes 2 listings
4.9 from 41 reviews

As an alternative to using gas or electricity, the innovative iStore Air to Energy uses compressor technology to extract heat energy from the air and store it for using later.

Affordable to run
Environmentally friendly
Government rebates available
  • Build Quality
    4.7 (35)
  • Value for Money
    4.7 (35)
  • Cleaning & Maintenance
    4.8 (32)
  • Noise Level
    4.4 (36)
  • Temperature Consistency
    4.9 (35)
  • Heating Speed
    4.8 (36)

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Dux Proflo
Electric Hot Water Storage Systems

Dux Proflo

 · includes 28 listings
4.1 from 478 reviews

Latest review: I was quoted buy Bunnings / Dux for a 315l twin element pro flo. $2473 fully installed by one of their plumbing partners. I always get multiple quotes from business when large amounts are involved.

  • Build Quality
    4.7 (313)
  • Value for Money
    4.6 (321)
  • Cleaning & Maintenance
    4.7 (266)
  • Noise Level
    4.8 (264)
  • Temperature Consistency
    4.8 (301)
  • Heating Speed
    4.7 (292)
Dux Always Hot Continuous Flow
  • Award Winner 2021
Gas Continuous Hot Water Systems

Dux Always Hot Continuous Flow

 · includes 20 listings
4.3 from 55 reviews

Latest review: Most of the time the unit performs well. Except when opening the hot water tap away from the unit, it takes a lot of wait time to get hot water. If you are moving from gas tank into continuous flow

  • Build Quality
    4.6 (40)
  • Value for Money
    4.3 (40)
  • Cleaning & Maintenance
    4.5 (32)
  • Noise Level
    4.7 (40)
  • Temperature Consistency
    4.4 (35)
  • Heating Speed
    4.0 (35)
Sanden Eco Heat Pump
Electric Hot Water Storage Systems

Sanden Eco Heat Pump

3.9 from 97 reviews

Latest review: I bought Sanden hot water heat pump in March 2021 from Pure Electric. Very happy with it. Its energy efficient and effective. Great using my solar power to make hot water, rather than the old gas

  • Build Quality
    3.7 (44)
  • Value for Money
    3.3 (43)
  • Cleaning & Maintenance
    3.9 (40)
  • Noise Level
    4.5 (42)
  • Temperature Consistency
    4.3 (35)
  • Heating Speed
    4.5 (36)
Envirosun
Solar Water Heaters

Envirosun

 · includes 16 listings
4.8 from 24 reviews

Envirosun solar hot water systems use durable hot water tanks and high-density thermal insulation, making them built to last and able to deliver hot water to your household faster.

Energy-saving product
Efficient, professional installation
  • Build Quality
    4.1 (7)
  • Value for Money
    3.4 (7)
  • Cleaning & Maintenance
    4.0 (7)
  • Noise Level
    5.0 (6)
  • Temperature Consistency
    4.4 (7)
  • Heating Speed
    4.1 (7)
Neopower Evacuated Tube Solar Hot Water
5.0 from 17 reviews

With 80% collector efficiency and a frost tolerance of up to -15°C, the Neopower Evacuated Tube Solar Hot Water System can reliably provide you with heated water around the home.

  • Build Quality
    5.0 (10)
  • Value for Money
    4.9 (9)
  • Cleaning & Maintenance
    5.0 (9)
  • Noise Level
    4.9 (9)
  • Temperature Consistency
    5.0 (9)
  • Heating Speed
    4.9 (9)
Chromagen Midea 170L Heat Pump
Electric Hot Water Storage Systems

Chromagen Midea 170L Heat Pump

3.3 from 109 reviews

Latest review: Our Midera 170L brand new hot water pump is extremely loud. It’s so bad we shut our bedroom windows and it still keeps us awake through the night. It’s like a loud humming noise that is con

  • Build Quality
    3.1 (52)
  • Value for Money
    3.1 (55)
  • Cleaning & Maintenance
    3.4 (50)
  • Noise Level
    3.3 (51)
  • Temperature Consistency
    3.6 (46)
  • Heating Speed
    3.4 (47)
  • TypeStorage
  • Dimensions 1580 x 568 x 568 mm
Reclaim Energy CO2 Heat Pump Hot Water System
Electric Hot Water Storage Systems

Reclaim Energy CO2 Heat Pump Hot Water System

4.9 from 51 reviews

Latest review: Installed by Ureco in November 2021 it has proved to very efficient and very quiet. The timer runs it during the day when my solar panels are producing so my hot water is

  • Build Quality
    4.9 (46)
  • Value for Money
    4.6 (45)
  • Cleaning & Maintenance
    4.8 (39)
  • Noise Level
    4.9 (45)
  • Temperature Consistency
    4.9 (45)
  • Heating Speed
    5.0 (43)
Apricus Solar Hot Water System
Solar Water Heaters

Apricus Solar Hot Water System

 · includes 3 listings
3.3 from 159 reviews

Designed for a tough Aussie climate, the Apricus Solar Hot Water System delivers energy savings while resisting corrosion and chemical damage.

Helps reduce energy costs
Seamless installation
Knowledgeable customer service
Some reviewers disappointed with after-sales service
  • Build Quality
    3.4 (50)
  • Value for Money
    3.3 (49)
  • Cleaning & Maintenance
    3.6 (44)
  • Noise Level
    4.1 (38)
  • Temperature Consistency
    3.6 (41)
  • Heating Speed
    3.7 (41)
Vulcan Freeloader Gas Hot Water System
Gas Hot Water Storage Systems

Vulcan Freeloader Gas Hot Water System

 · includes 2 listings
3.8 from 31 reviews

Latest review: We are about to replace our Vulcan Hotshot 135L gas hot water unit. It was installed in 1994. 28 years of fantastic service. What more can I

  • Build Quality
    4.0 (7)
  • Value for Money
    3.9 (7)
  • Cleaning & Maintenance
    4.3 (7)
  • Noise Level
    4.7 (6)
  • Temperature Consistency
    4.7 (6)
  • Heating Speed
    4.3 (6)
Rinnai Infinity Range
Gas Continuous Hot Water Systems

Rinnai Infinity Range

 · includes 10 listings
3.1 from 227 reviews

Latest review: Basic Info: Installed in 2001, reviewed in 2022, running flawlessly on a 2 storey 4 bedroom house, placed right outside the downstairs bathroom, and we INSULATED the hot water pipe. This is in

  • Build Quality
    3.6 (34)
  • Value for Money
    3.1 (35)
  • Cleaning & Maintenance
    3.9 (28)
  • Noise Level
    3.7 (33)
  • Temperature Consistency
    3.1 (34)
  • Heating Speed
    3.1 (34)

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Stiebel Eltron WWK 222 / 302
Electric Hot Water Storage Systems

Stiebel Eltron WWK 222 / 302

 · includes 4 listings
3.9 from 56 reviews

Latest review: I have have this unit for 5 and half years and it has totally stopped Woking condenser is stuffed. Of course the warranty is only five years I'm in the position to replace it so soon. Feeling

  • Build Quality
    3.9 (31)
  • Value for Money
    3.2 (31)
  • Cleaning & Maintenance
    4.2 (26)
  • Noise Level
    4.1 (33)
  • Temperature Consistency
    4.2 (30)
  • Heating Speed
    4.0 (29)
Enviroheat Heat Pump Water Heater
4.3 from 20 reviews

Latest review: They promptly fitted a hot water pump after discussions and suggestions on which would be the best way to proceed. J R Gas & Water are good to deal with giving you confidence in their

  • Build Quality
    4.2 (18)
  • Value for Money
    4.3 (18)
  • Cleaning & Maintenance
    4.2 (13)
  • Noise Level
    3.8 (16)
  • Temperature Consistency
    4.0 (11)
  • Heating Speed
    3.8 (11)
  • TypeStorage
Thermal Ark ARK270
Solar Water Heaters

Thermal Ark ARK270

5.0 from 12 reviews

The Thermal Ark ARK270 Heat Pump Hot Water System has different modes that make it even more energy efficient, as well a water recovery rate of 75L/h, letting you get hot water when you want it.

  • Build Quality
    4.7 (7)
  • Value for Money
    4.9 (8)
  • Cleaning & Maintenance
    5.0 (6)
  • Noise Level
    4.7 (7)
  • Temperature Consistency
    4.6 (7)
  • Heating Speed
    4.6 (7)
Smarttek Black Smart Hot Water System
Gas Continuous Hot Water Systems

Smarttek Black Smart Hot Water System

3.4 from 37 reviews

Latest review: Ever since new i had an intermittent fault with my black series hot water unit. frustrating and hard to diagnose too. mainly dealt with kathrine who was fantastic. long story short after multiple

  • Build Quality
    3.9 (32)
  • Value for Money
    3.4 (35)
  • Cleaning & Maintenance
    3.8 (29)
  • Noise Level
    3.9 (27)
  • Temperature Consistency
    3.2 (33)
  • Heating Speed
    3.6 (33)
EcoAlliance Dynaheat
Electric Hot Water Storage Systems

EcoAlliance Dynaheat

 · includes 6 listings
3.4 from 193 reviews

Latest review: After technician left … Leaks and no hot water !! Technician refused to revisit as a ‘service ‘ issue clearly installation anomaly Constant calls from service and promised to ‘fix’ never occurred Re

  • Build Quality
    3.8 (130)
  • Value for Money
    3.9 (134)
  • Cleaning & Maintenance
    3.7 (116)
  • Noise Level
    3.6 (126)
  • Temperature Consistency
    4.0 (124)
  • Heating Speed
    4.0 (121)
Page 1 of 6

Types of hot water systems

A gas hot water system mounted on a white brick wall.

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.

Pros

Running costs are cheaper than electric systems.
More efficient and environmentally friendly than electric models.

Cons

Initial cost is more expensive than electric systems.
Not as environmentally friendly as solar and heat pump options.
There’s uncertainty over gas prices in the future - it’s predicted it will become more expensive.

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.

Pros

Cheaper to buy and install than gas hot water systems.
Can be installed both indoors or outdoors.
Available in a variety of sizes to suit different households.

Cons

Most expensive to run because of electricity prices.

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.

Pros

Environmentally friendly.
Running costs are low, and may even provide a large chunk of your hot water for free.

Cons

Expensive to purchase, but government rebates and incentives can help offset this.
Their performance is dependent on the placement of the rooftop collector and the weather.

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.

Pros

Highly efficient, making them economical to run.
Can be found in a range of sizes to suit different households.
Don’t require rooftop collectors, so can be a good option when solar access isn’t optimal.

Cons

The unit’s compressor can be noisy.
High initial cost, but government rebates may be available to help offset this.

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.

A close up of a man washing their hands under a bathroom faucet.

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 of rebates that are available to those living in your area.

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