Did you know that about 80% of men and 90% of women in Australia use hot showers daily?

To most of us, a hot shower is a simple joy that we usually take for granted. However, it suddenly becomes a luxury when things go wrong. That is when we start rushing desperately to find any available solution.

If you happen to find that your hot water system has stopped working, there are few things that you can examine as possible causes. Read our guide to learn about possible problems with your hot shower.

We will also provide some tips and potential remedies to try before calling the experts. 

Lack of Power

One of the most common reasons your hot water system isn’t working can simply be due to a loss of its power supply.  However, you can’t just assume that this is the case without sufficient proof.

First, check if the breaker supplying the hot water system is tripped within your circuit breaker box. In that case, you can try fixing it on your own if you have some expertise in handling electricity. 

Now, go back to your shower and switch it on and check if it works. If that doesn’t solve the problem, continue troubleshooting and this time check the fuse (if it’s wired) to confirm it isn’t blown.

If it’s blown, then you might be dealing with electrical shorting or overloading. This could be due to a problematic appliance, or it may be something wrong with the wiring.

These fuses are replaceable, but you should call a professional electrician to  investigate if the problem persists.

Also, it’s worth checking the power cord and the outlet that your hot water system runs from. Ensure the cord is properly fixed to its socket and the socket is operating fine. You can use another appliance to test the socket is working properly.

If another appliance works normally using the same socket, you might have the cord to blame. See if it is frayed, with exposed wires, etc., and plan a replacement. 

Another possible cause could be a problem in the internal electrical connections.

That may mean things like loose wirings, improper switches, or even a defective control board. Repairing the internal electricity equipment is dangerous, so it’s best to call a certified technician.  

Sediment Buildup 

The minerals present in water, for instance calcium and magnesium, mostly tend to settle at the base of your water heater forming sediments.

These sediments can slowly accumulate in your hot water system leading to several complications. To begin with, they take up space, thus reducing the space available for hot water, so you will end up with less hot water. 

Secondly, the sediments form an insulation layer between the heating element or gas burner and the water, thereby delaying the heating cycle and causing more gas or electricity usage resulting in higher utility bills. 

Thirdly, sediment buildup also increases the corrosion of the tank, especially if the sediment is acidic. This can prematurely wear out your heater and cause leaks or tank failure. 

On top of that, such sediments may harbour bacteria and foster the growth of unwanted microorganisms that cause foul odors in water.

To avoid all these issues, you should observe proper maintenance of your hot water system. For instance, you can flush your water heater tank from time to time to remove sediments. Flushing involves draining the tank, cleaning it properly, and then filling it with fresh water. 

You can use the manufacturer’s instructions as your guide or leave it to a qualified plumber to ensure the procedure is done properly and safely. 

It is also advised to install a water softener to reduce the mineral content in the water supply: this is very useful to prevent the accumulation of sediments in the future. 

Thermostat Malfunction 

The thermostat of your hot water system is responsible for maintaining the right temperature of the water.

It works by detecting the water temperature and turning on the heating element or gas burner when the temperature drops below the desired point.

But thermostats can fail in several ways, leading either to excessively hot water or at other times to no not water at all. This happens when the thermostat sensor stops working correctly. 

To fix a faulty thermostat, first inspect the battery.

If it uses batteries, replace them and check if the problem is solved. Otherwise, inspect the thermostat for any form of damage like a loose wire or corrosion. If you notice something,  get in touch with a professional technician for proper repair or replacement.

Moreover, maintenance on a regular basis, including proper recalibration, helps ensure that the thermostat works properly and increases its lifespan.

Another possible solution is upgrading to a smart or programmable thermostat that offers better temperature control, along with enhancing energy efficiency. 

Heating Element Problems

Most electric water heaters come equipped with one or more heating elements.

These elements are placed in water and function by converting electrical energy into heat energy to provide hot water for usage.

However, the heating elements can burn out or deteriorate over time, leading to issues with your hot water supply. One of the key common indicators of a faulty heating element is not heating water to the desired temperature or even no hot water at all .

In this case, use a multimeter to test if the heating element is receiving power.

If you get no positive results, you can be sure that the heating element is burnt out and needs replacement. Make sure to pick a good replacement of the same voltage and wattage as the one used previously.

As already mentioned, the heating element might have sediment build-up around it causing malfunction.

This is quite simple for a technician, but if you can do it yourself then why not? As mentioned earlier, this would involve emptying out the water heater and scrubbing away unwanted deposits.

Problems with the Gas Supply

If you are relying on a gas hot water shower, you could be lacking hot water because of a gas supply issue. The supply can be halted by things like pipe leaks. 

A gas leak can be initiated by some of the most common problems: broken or loose joints, defective valves, or fractures in the gas line.

If gas supply becomes an issue, don’t worry. First, begin by turning off the gas supply valve feeding your water heater and maintaining good ventilation in the area. 

Allow fresh air in through open windows and doors, to reduce gas build-up, as it can be hazardous. Next, call a licensed technician to inspect the gas line or contacts and repair the defects. Until the problem is fixed, do not use any electric appliances to avoid creating sparks that would result in fire.

Another gas supply problem that could affect your supply of hot water is when the pilot light goes off.

The pilot light is needed to ignite the gas burner. When it burns out, the water heater is no longer able to produce hot water because there is no source of heat. 

On top of these, you could be lacking hot water in the shower because of drafts. These affect the temperature inside the shower, making it difficult to heat water as desired.

Whatever the issue, you can avoid a gas supply problem by practicing regular maintenance: check for gas leaks, ensure proper ventilation, and clear the area around your water heater to remove any possible obstructions. 

Final Thought 

Knowing the above common issues that can lead to no hot water in your shower will help you find solutions before things get out of hand. Sometimes it can be one issue, and at other times several issues can occur simultaneously.

Try troubleshooting following our guide, but remember that your safety is of the utmost importance.

So, don’t attempt to do things you are not sure of, and bring in professionals instead  to sort these issues in the safest way possible. Don’t stay without hot water! 

Australians can feel that everything is getting more expensive.

The cost of living has increased to extreme levels, and many Australian citizens are struggling to survive in the current economic environment especially with the rise of energy prices.

Therefore, there is an increased need for systems that will operate cost-effectively and help consumers save on energy costs. The change in consumer behavior is clear with more Australians favouring efficient systems to cut costs.

This article will discuss how such energy price fluctuations have affected consumer choices, especially when it comes to hot water systems.

Response to Rising Energy Costs

Consider this graphical representation of the increase in price vs consumers’ reactions.

Figure 1 Increase in price vs peoples reaction Source: Energy Consumers Australia

Consumers are already feeling the burden of higher energy bills and are even more worried about the future as energy is expected to become even more expensive.

This has led many consumers to look for ways that will reduce their energy consumption. Based on Energy Consumers Australia, we will go over some consumer responses below:

Reduced use of heaters and coolers

Consumers prefer reducing heating and cooling processes to save on energy costs. This has a great impact on hot water system usage.

Many use such systems sparingly, depending on their financial ability. However, most of those who use this approach are usually not happy with the limited freedom to use hot water to satisfy their needs.

They also face the danger of developing illnesses associated with cold if they choose to use cold water for some activities like bathing.

Shift to Alternative Power Sources

Australians have also considered shifting to alternative energy sources to run their hot water systems without incurring high energy costs.

One of these energy sources is solar energy, where consumers prefer purchasing solar panels and installing them in their homes, despite the high initial installation costs.

Even though the initial installation cost for solar hot water systems may be high, their running cost is lower than that of electric systems. As such, these systems will reduce the amount of money spent on grid electricity in the long run.

Switch of Energy Providers

Other consumers opt for changing energy-providers, choosing those energy providers that offer lower energy costs. However, despite this shift, the costs might still be high, leading only to minimal savings.

Thus, shifting to other energy providers may not be a lasting solution to high energy prices.

Buy Batteries

Power sources such as solar are accompanied by storage equipment such like batteries.

Consumers who have installed solar panels on their rooftops consider buying high-capacity batteries that can store power for use when the sun goes down.

Even though solar power may not always be reliable, it can be boosted with gas and electric systems, especially during the winter season or cloudy days. Large-capacity batteries can help when it is not possible to use solar energy.

Use Efficient Energy Systems

Another tactic that Australians should use to reduce energy bills is considering the installation of energy-saving equipment. For instance, some choose heat-pump water heaters over electric storage water heaters.

Heat-pump water systems use heat from the surrounding air to heat water in a storage tank. Thus, they are more efficient than electric hot water systems.

Consumers prefer such systems over more energy-consuming designs. Consider the following figure:

Figure 2 Tactics used to reduce energy bills Source: Energy Consumers Australia

Impact on the Hot Water System Market

The rise in energy prices has affected the hot water system market negatively. With the current changes in consumer behaviour, the demand for hot water systems has gone down.

Purchasing such equipment is likely to drop further, since some will minimize their use of cooling and heating to save on energy costs. Damaged hot water systems may be abandoned due to a lack of interest in them.

As a result, many may lose employment opportunities since hot water system services may not be required anymore.

However, it is not guaranteed that the hot water systems market will drop. There are mechanisms to counteract this and restore customers’ faith in these systems.

One way to do this is by designing systems with higher efficiency to reduce power consumption when heating water. Second, customers should consider mounting large solar panels on their rooftops to supply surplus energy that can be used to lower the cost of heating water.

Third, the government should subsidize power services to reduce the cost of power. Lastly, engineers should design solar-efficient hot water systems that will utilize solar power efficiently.

Recommendations to Consumers

As discussed above, Australians are straining to meet their energy needs due to the rise in energy prices.

Some have chosen to develop a limited power consumption habit, where they are forced to avoid some crucial processes to save on energy bills.

This tactic makes their lives uncomfortable with some even avoiding frequent bathing. In this case, what solutions are available to encourage consumers to use hot water systems again?

First, they should consider adding solar energy sources to their systems. Australians needs to consider purchasing and installing solar panels on their rooftops, as a surplus source of energy.

Solar panels may be more expensive to purchase and install, but they provide fantastic results over the long-term. They can save energy costs by more than 60%.

Secondly, they should replace their old hot water systems with new more efficient ones. Using energy-saving appliances will help consumers save on electrical energy expenditure.

As discussed earlier, one simple example of this is opting for heat-pump heaters instead of electric hot water systems.

Conclusion

The rise in energy prices has led to changes in consumer behaviour, affecting the hot water systems market greatly. This market is at risk of disappearing, but there is still hope for it if customers choose alternative power sources and if better systems are designed

Looking for a way to heat wate­r without the inconvenience and waste of a storage tank? 

Try ele­ctric instant hot water heaters, commonly known as tankle­ss heaters. 

These­ simple gadgets spring into action only when ne­eded, prese­rving energy, saving water, and, eventually, your money.

Plus, they promise­ steady pressure and temperature  unlike the­ usual tank water heaters which may vary the  te­mperature of water, therefore extending the lifetime of the tank  and protecting your pocket­ from severe costs. 

In the guide­ below, we’ve analyzed the se­ven top electric instant hot wate­r heaters available in Australia in 2024. 

Stiebel Eltron DHE 27 AU

Product Overview

The Stiebel Eltron DHE 27 AU is a 3-phase electric instant water heater that can deliver up to 27 liters of hot water per minute, with full electronic control and a 4i technology that ensures accurate and consistent water temperature at all times.

It is convenient to use in  multiple locations and ensures high energy efficiency and eco-friendliness, thanks to its ECO mode and energy and water consumption LEDs.

 It also has a backlit multifunction display, individual memory buttons, and additional functions such as a temperature limit, a wellness shower program, an automated bath filling, and childproofing setting for greater convenience and safety.

Its size is ideal for larger homes with two bathrooms or more, or high hot water demands. If you need to service one bathroom only, we recommend buying the DHE 18 AU.

Specs: 

• Temperature setting: 20-60 °C
• Colour: white
• Height: 466 mm
• Width: 225 mm
• Depth: 116 mm
• Weight: 3.10 kg
• Energy efficiency class: A

Location: Indoor or outdoor

Warranty

• 5 years for domestic parts and labour 
• 1 year for commercial parts and labour 

Girard Prod 2GWHAM Tankless Water Heater

Product Overview

Convenie­nt and robust, the Girard Prod 2GWHAM Tankless Water He­ater offers instant hot water for your  ne­eds. Using 12V power, it works silently via a brushle­ss motor and  boasts a strong output of 42,000 BTUs, delivering hot water instantly.

Thanks to its in-built microproce­ssor, it constantly controls the temperature­  of the­ incoming water, the amount of water flowing, and that  of the outgoing water, to properly calibrate the delivered output.

It’s e­fficient and  environmentally friendly, using only half the energy that an alternative  six-gallon tank he­ater would need for the­ same amount of hot water. 

It also has an intelligent control panel, allowing you to adjust the temperature setting from 95 to 124°F, toggle between Fahrenheit and Celsius, get a continuous water outlet temperature reading, and more. 

Specs:

• Weight: 10.88kg
• Width: 31.75cm
• Height: 31.75cm
• Depth: 39.37cm
• Maximum Pressure: 55 PSI

Location: Indoor or outdoor

EEMAX HA027240 Electric Tankless Water Heater

The EEMAX HA027240 Electric Tankless Water Heater 27000W is a whole-house electric water heater that can provide up to 8 gallons per minute of hot water at a set temperature. It has a 99% energy efficiency rating and a digital temperature control.

It also has a durable, easily replaceable heating element, a copper heat exchanger with a brass top, and a vent-free design. Its  size and capacity make it suitable for homes with two to three bathrooms and if  you need to service more bathrooms, we recommend buying the HA036240.

Specs:

• Height: 17 inches
• Width: 17 inches
• Depth: 3 inches
• Weight: –
• Max Pressure Rating: 150 PSI

Location: Indoor 

Warranty

• 1 year limited warranty for parts and labor 5 year limited warranty for leaks 

Rheem RTEX-13

The  Rhe­em RTEX-13 is a rapid  solution for hot water needs, and is a  tankless he­ater that can handle multiple hot water demands  at once. What’s cool is its digital the­rmostat and LED-screen, which allow you to vary the temperature of ­ the water by a single­ degree from 80°F to 140°F.

Its two coppe­r heating parts are built to last and are easy to swap out. Plus, it is fitted with a self-adjusting power control that matches e­nergy use to the wate­r flow.

Need to manage your he­ater from a distance? No problem. It smoothly pairs with the­ Rheem EcoNet app, allowing you to closely monitor and change­ the settings of your heate­r straight from your phone.

Specs:

• Depth (in.) 3.63″
• Height (in.) 12.63″
• Width (in.) 8.25

Location: Indoor 

Warranty

• 5 years for domestic parts and labour 1 year for commercial parts and labour 

EcoSmart ECO 27 Tankless Electric Water Heater 27 kW 240 V

If you have a warm indoor environment at  home,  then the EcoSmart ECO 27 may be­ the right solution for you. It’s a tankless electric wate­r heater that can supply  your e­ntire house with hot water on demand.

It has a gre­at feature of self-modulating te­chnology which helps manage the powe­r used based on the water  ne­eds. Moreover, you can  save up to 50% on your water he­ating bills.

This heater also has a digital screen which shows the temperature of the wate­r and allows you to  adjust the setting by 1-de­gree variations. The­ amount of hot water it provides can also vary  betwee­n 2.7 to 6.5 gallons per minute. Howeve­r, the exact amount depe­nds on your incoming water’s temperature­.

The heater  also has a manual switch, which can come in handy during a power outage­. The switch can reset the­ heater to its original settings. 

Specs:

• Width: 17 
• Height: 17.75 
• Depth: 4.25
• Wattage: 240 volts

Location: Indoor 

Warranty

• Lifetime Limited Warranty on electronics, exchanger and element 

The Bosch Electric Mini-Tank Water Heater

The Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4) is a simple point-of-use water heater that can fit under your sink or can be mounted on the wall or installed floor-mounted.

It can provide hot water right as needed, eliminating the wait time and saving water and energy, with its  thermal efficiency of 98% and  fast recovery rate. It can supply up to 2 sinks at one time and has a premium glass-lined material to ensure  a long service life.

Specs:

• Width:13.75 Inches
• Height:13.75 Inches
• Depth:13.5 Inches
• Wattage: 1440

Location: Indoor 

Warranty 

6 years for residential parts and labor 1 year for commercial parts and labor 

Biselong Instant Hot Electric Tankless Water Heater

The Bise­long Electric Tankless Water He­ater is a powerful, all-purpose equipment. It can provide a substantial supply of hot water for both kitchen and bathroom use. The­ heater’s 12KW system he­ats water in seconds, with no prehe­ating or standby losses.

It has a clever chip that  change­s power use tied to wate­r flow and temperature, which  can save­ up to  90% on electricity  costs. It includes a digital scre­en that can display the current wate­r temperature and a conve­nient adjustment  knob.

The he­ater has a self-protection feature  to pre­vent mineral build-up which extends its lifespan. If the water pressure­ is low, it can still properly function  due to its startup setting.

Specs:

• Width: 8.6″ 
• Height: 2.4″H 
• Weight: 5.79 pounds
• Wattage: 240 volts

Location: Indoor 

Warranty 

• 2 years for parts and labour 

Factors to Consider When Choosing the Best Electric Instant Water Heaters

There are many factors to consider when choosing the best solution to suit  your needs, such as:

• The size of  the he­ater  and its capacity ­ – this is in fact an essential factor! You should ensure that it can meet your household­’s needs, taking into account the number of occupants, the number of taps, and weather patterns. The­ manufacturers’ guide can help you estimate the most suitable size.
• The powe­r and voltage ratings of the heate­r are also important factors, and should align with  your current e­lectric setup. You might nee­d to fiddle with wires, add new circuit bre­akers, or install new fuse­s. Additionally, you should consider  how much it costs to operate the heater and how energy-efficient  it is.
• Functions and features of the heater. Always select a heater that has an easy-to-use control pane­l, a digital screen, and a knob that allows heat modification. Safety feature­s are also essential to consider including ­ overheat protection, flame­ failure safety, and anti-free­ze protection. Some he­aters might also have additional convenient settings  like­ self-cleaning, self-diagnostics or a re­mote control.
• Warranty period on  your heater is also important. Always check the warranty duration and what it encompasses. Make­ sure that parts and labor are part of the warranty agreement. Also, make sure to che­ck out other customers’ feedback  about the he­ater, and the convenience of communicating and interacting with  the­ company that manufactures and installs it.

Pros And Cons Of Electric Instant Water Heaters

Here are some of the pros and cons of electric instant water heaters:

Pros of electric instant water heaters:

• Instant electric heaters are  e­co-conscious and energy-conscious. Unlike the  continuously energy-consuming traditional tank-style wate­r heaters, instant ele­ctric solutions only need energy whe­n a hot water tap is in use or an appliance ne­eds hot water.
• An endle­ss hot water supply is guaranteed. As long as the­re’s electricity and wate­r, instant electric water he­aters can maintain a steady delivery of hot wate­r. You no longer have to worry about  “out of hot water” moments  or tank re­fill waiting periods.
• They are compact and space-saving. Electric instant water heaters are much smaller than tank-style water heaters, and can be mounted on a wall, under a sink, or even in a closet. They can be installed at  an angle and in multiple locations, as long as there is access to power and water. This can free up valuable floor space and make your home more spacious and organized.

Cons of electric instant water heaters:

• Electric instant wate­r heaters are more expensive than traditional options. They cost more than tank-style he­aters, considering both the price­ of the unit and the setup e­xpense. An ele­ctric instant heater typically costs between $500 to $1,500, in contrast to a tank-style he­ater’s average price­ of $300 to $600.
• Regular  maintenance  is a must. At least once a ye­ar, you need to clean and flush out the e­lectric instant water heate­rs, either by following the guidelines carefully, or by hiring a skilled plumber. This ensures the removal of mineral de­posits and buildup which could hinder performance and re­duce the heater’s lifetime. 

Conclusion

Instant ele­ctric hot water heaters can rapidly deliver substantial amounts of  hot water, with no storage tank require­d. They’re efficie­nt, green, small, and easy to set up. On the downside they have a high  initial cost, require re­gular maintenance , and are  vulnerable to power outage­s.

So, when looking for the most suitable application­, make a list that checks finances, your electricity setup, your hot wate­r needs, and your personal preferences.

This article can serve as a guide for  the­ top 7 electric instant hot water he­aters available in Australia in 2024 with  respect to their features, capabilities, and overall  performance.

Gone are the days when you had to pay hefty amounts to get hot water flowing in your taps; the times have changed for the better. Whether you are a fan of warm 

summers in Darwin or the cold sea breeze of Canberra, the need for hot water is always there. Before the introduction of energy-efficient hot water systems, it was expensive to ensure a warm source of hot water.

The resources used in the past were Wood-Fired Boilers (that heat boilers using wood-burning stoves), Copper boilers (large vessels made of copper and heated over an open flame using natural gas or burning wood) and Kerosene Burners (using kerosene burners to heat water)

All these approaches took time, were inefficient and proved to be harmful for the ozone layer due to the greenhouse gasses they emitted. In 2006, the total greenhouse gasses emitted were equivalent to 576.0 million tonnes of CO2. The energy sector alone was responsible for about 69% of these toxic emissions.

Seeing these trends of increased Co2 emissions, the government started encouraging both the industries and domestic users to adopt energy-efficient hot water systems across the country. For this purpose, they introduced incentives such as:

Small-scale Technology Certificates (STCs): 

This federal initiative that allows homeowners to earn STCs upon the installation of energy efficient hot water systems. These certificates represent the electricity saved over the system’s lifespan. The certificates can be sold to offset the installation costs. 

• Victorian Energy Efficiency Target (VEET) Scheme: In Victoria, the VEET scheme provides incentives for households to replace old inefficient systems with more energy-efficient alternatives. Homeowners can generate Victorian Energy Efficiency Certificates (VEECs) that can be sold for a discount on the new system​.

Introducing these benefits encouraged many Australians to the move towards energy efficient hot water systems; here are the 3 most popular choices for domestic and commercial use:

Solar Hot Water Systems

Solar is by far the most abundant, powerful, clean and consistent energy source available. Australia is one of the sunniest countries, with some regions having 300 plus sunny days hence opting for solar-energy heating systems makes a lot of sense.

Although the initial investment required to set up the system is high (up to $7000 USD), it could pay off in just a couple of months.

After the initial upfront investment, solar systems have very low running costs, so they can drastically reduce costs related to water heating (a major contributor to monthly electricity bills) and prove to be a good investment in the long run it.

After switching to solar you can rest assured that hot water will be available whenever you need it. Even when the sun is not shining bright, the system can still provide you with hot water thanks to the latest technologies now used in the solar panels.

Heat pump hot water systems:

After solar systems, the second most popular choice is heat pumps. Like solar systems, heat pumps are also eco-friendly.

They heat water by absorbing heat from the surroundings using a refrigerant gas and pumping it through the pipes surrounded by water.

This refrigerant gas absorbs heat from the surroundings and releases it into the water. Since this system uses ambient air heat, it is highly effective in hot and sunny areas.

Although the upfront cost is also high in this case, it can save a lot on energy bills over time, making it a good long-term investment.

Electric hot water systems:

These systems use electrical resistance coils controlled by thermostats within an insulated tank. Cold water enters through a dip tube where it’s heated, and the hot water is drawn from the top.

A pressure relief valve is placed for safety purposes and an aluminum rod is installed inside the tank to avoid corrosion. The initial cost of the system is not that high compared to other systems; however a significant amount of electricity is used to run the system, making it expensive to use in the long run.

On the other hand, these systems are easy to install and maintain, and in a country like Australia there is no shortage of electricity. These systems are also highly efficient, wasting almost no electricity in the process.

Leveraging smart technologies to make these systems more efficient

When it comes to making processes efficient, modern technology has come a long way.

It now provides features like remote access to your hot water systems and apps that display all the stats at a glance and allow you to customize a ton of settings like on/off timings, electricity bill prediction, and providing suggestions using AI to maximize the efficiency and minimize the cost of running the system.

Comparing all the systems 

Solar hot water systems are most suitable for areas where there is abundant sunlight, and Australia has a lot of it.

The upfront cost is high, however government incentives and rebates can cover part of that. The overall operating cost of the system is low compared to other methods, and the price of solar solutions has recently dropped significantly as the reports from International Renewable Energy Agency suggest.

Moreover, opting for solar hot water systems can also help fight global warming as the reports from Solar market Australia suggest that using solar power can cut down on greenhouse gas emissions by 1.75 – 2.05 tonnes per annum.

These solar systems have a low carbon footprint and are eco-friendly.

Overall, such systems are a good choice if you can bear the relatively high upfront cost, which will can be recouped in just a few months.

Gas hot water systems are highly efficient in areas where there is ample supply of gas.

They are 2-3 times more efficient than traditional electric water heaters and can function in diverse climates. The installation cost is moderate as compared to solar systems, but the operating costs are higher than solar systems and lower than electric systems.

Another disadvantage is that they produce greenhouse gasses, so they’re not a good option to consider from an environmental point of view. The system also requires adequate space for proper ventilation.

Electric hot water systems are generally less efficient than gas and solar  systems, where their upfront cost is low but the operating cost is high due to electricity prices.

This can be mitigated if they are powered by solar energy; however according to the Australian Parliament the price of electricity has soared over the last 10 years and is expected to increase even further.

The carbon footprint of such systems will also be high if electricity is being generated by fossil fuels.

As an Australian looking for an affordable domestic hot water solution, you probably want a direct answer whether electric heaters or heat pumps are the best water heating system. 

It’s not easy to figure this out on your own, considering that heat pumps are new entries in the industry so most people may not know about them yet. 

To help you choose the better system, this post will compare these two types of water heaters. Read through it keenly and the answer will be at your fingertips by the end, so let’s begin!

How do electric instant water heaters work?

Electric instant water heaters, otherwise known as tankless water heaters, are available in 50% of Australian homes without a storage tank.

When hot water is needed, cold water travels through a pipe into the unit where it is rapidly heated by an electric element. The heated water continues to flow through the pipe to the outlet and provides hot flowing water instantly.

How About Heat Pump Water Heaters?

Heat pumps for heating water are new in the domestic hot water industry.

These systems do not generate heat directly but rather use electricity to move heat from one location to another to warm up water efficiently. Basically, this involves moving heat from either air or ground sources into the liquid using a refrigerant.

How Heat Pumps and Electric Water Heaters Compare

Energy Usage Considerations

Before deciding on the best water heater, you must think about energy usage. After all, you want an upgrade that will save energy!

That being said, heat pumps tend to use energy more efficiently than their counterparts. The units only need electric energy to transfer heat not to create it as already existing heat is simply extracted from the air.

The heat transfer process requires very little energy consumption. Typically, heat pumps have a CoP of 3 – 4 so they only need a single electrical unit to capture and transfer up to four units of heat energy. 

This higher CoP leads to huge savings. According to DCCEEW, it reduces energy consumption by more than 70%.

On the contrary, electric water heaters rely on a resistive coil to provide water. These coils draw a lot of energy, rendering electric water heaters quite expensive to run over time.

Environmental Friendliness

The second factor that can help you easily choose between electric water heaters and heat pumps is their environmental impact. The aim is to choose a system that promises a to conserve the environment for the future.

In this regard heat pumps once again win.  They use less energy thereby reducing the pressure to generate electricity from fossil fuels. They are therefore responsible for negligible emissions. 

This is supported by  Future Energy Skills Australia  that claims that an Australian modern heat pump emits 65% to 75% compared to a standard electric water heater.

Clearly, the difference in emission can help you lower your carbon footprint if you choose a heat pump water heater.

The Associated Installation Costs

The cost associated with installing a heat pump and a standard electric heater in Australia varies depending on several factors like the unit size, the complexity of the installation and whether additional components are needed.

Nevertheless, electric water heating beats heat pumps in this case.  According to Australia Energy Upgrades, electric heaters are affordable to purchase and install. You will need around $300 for a small unit to $1,500 for larger units. 

On the flip side, the price of a heat pump unit (not including installation) is much higher  than buying and installing a standard electric water heater. Based on the same source, the cost of acquisition alone is around $2,500 to $4,000.

Although heat pumps are associated with higher initial costs, their long-term cost savings enable them to recoup this cost. Further, government and local authorities’ rebates and incentives reduce the cost making them even more affordable. 

Lifespan and Durability

You want to invest in a hot water system that will serve you and possibly serve the next generation, right?

In that case, you should go with heat pump water heaters that last up to 20 years compared to 15 years for electric heaters as per Cyanergy. 

They tend to last longer as they do not have resistive electric heating elements which are known to accelerate wear and tear in electric heaters.

Moreover, heat pumps are built with the Australian climate in mind.

They thus feature robust construction that will last no matter the weather or the water conditions. The durability is usually reflected in their longer warranties – they exceed those accompanying electric heaters which is a clear indication of their durability. 

Heat pumps’ longer lifespan means less frequent replacement further saving on your hot water bills. 

Installation and Maintenance

Both heat pump water heaters and electric instant water heaters have their own unique installation and maintenance requirements. 

Heat pumps are bulkier and more complex to install. They may require a lot of installation activities like preparing the installation site so that it’s well-ventilated, dealing with a lot of piping or ductwork and a lot of assembling. 

Installing electric heaters does not require as much work. You can readily mount the heater on a wall if there is a power supply and water connection. 

However, be warned that these electric heaters may require more frequent maintenance than heat pumps, as you will have to deal with issues such as descaling or cleaning, to ensure optimal performance.

Suitability for Different Climates

The climate conditions of the region you reside in Australia can have a big say on the best hot water system for you. For example, heat pumps work the best in warmer areas since heat energy is abundant in the air. 

However, in colder areas below – 15 degrees Celsius, a heat pump might work with reduced efficiency and this means it will need to work harder to meet hot water demands. 

Conversely, electric instant water heaters may not be affected by climatic conditions – whether it is cold or hot, these systems will continue providing water so long as they are connected to the grid. 

Space Considerations

When purchasing a hot water system, you must think about its size and then consider your available space, so you don’t end up with a unit bigger than your available space. 

This is particularly important if you are installing a heat pump water heater. They tend to be bigger so you will need to dedicate enough space for the installation. The space requirement is as follows according to EnergyLabs. 

• Small models: 70 cm wide x 80 cm deep x 120 cm tall
• Medium models: 90 cm wide x 100 cm deep x 140 cm tall
• Large models: 100 cm wide x 120 cm deep x 170 cm tall

For electric heaters, space will never be a huge concern. They are compact and can fit in most households.

Hot Water Demand

The quantity of water you need and how fast you need it is yet another thing that separates heat pumps from electric heaters. 

If you need a large volume of hot water instantly, an electric water heater will readily provide that, since there’s no waiting period before getting hot water. 

Heat pumps can also provide you with hot water when you need it, but only if you have a huge tank. With smaller tanks, limitations will set in because these systems need to heat and store water before availing it. 

Government Incentives and Rebates

If you remember from the discussion above, the Australian government provides rebates and incentives for those that have installed recognized industrial heat pump hot water systems. Those rebates can help pay some of the initial costs and make installing a heat pump water heater more cost-effective.

As an example, the Small-scale Renewable Energy Scheme provides incentives to assist individuals in getting their qualified systems and this markedly reduces the necessary initial expenditure to install a heat pump system

For electric tank water heaters, you hardly get any financial aid when purchasing and installing. That means you will pay everything out of your own pocket. Combining this with their endless running costs, electric heaters become an expensive option for Australian homes.

Our Take on Heat Pump Water Heaters vs. Electric Instant Water Heaters

Though heat pump water heaters and electric instant water heaters each have their own advantages, the clear winner is heat pump technology as it offers the best combination of energy efficiency and low long-term running costs. 

Yes, heat pump water heaters carry a higher initial cost, but Australian Government rebates and incentives can alleviate that. Also, the higher energy efficiency of heat pump systems means lower utility bills and cost savings over time eventually repay themselves. 

So, when selecting your hot water system, it is rewarding to choose heat pumps. 

In Australia, traditional water heating systems are increasingly considered a problem due to their high energy consumption.

As estimated by the DCCEEW, these hot water systems account for 15% –  30% of total household utility bills, which demonstrates how costly they can be. On top of that, they release about 25% of greenhouse gasses into the atmosphere, which is another major disadvantage.

To address these financial and environmental concerns, the Australian government is urging residents to switch to more modern hot water systems that promise improved comfort and convenience. Such hot water systems should also focus on reducing energy costs and environmental impact.

But how do you choose such a model with so many different options available in the market?

Here are some key considerations to help you with your hot water system search. 

Understand the Types of Hot Water Systems Available

When choosing the best hot water system, begin by understanding the various types available in the Australian market.

They include:

➤ Electric Storage Hot Water Systems: These are the most common in Australia with more than 50% of households currently using them as noted by DCCEEW. The systems feature an insulated tank that heats and stores hot water promising consistent supply in households with high demand. 

➤ Instantaneous Hot Water Systems: These systems deliver hot water as soon as you turn on the switch. They eliminate storage tanks making them the best choice for households where space is a constraint. They can be electric or gas-powered.

➤ Heat Pump Hot Water Systems: These systems heat domestic water using ambient heat trapped from the air or ground. They don’t rely on electric heating elements thus saving up to 70% on energy bills according to DCCEEW. They also reduce greenhouse gas emissions by up to 65% . 

➤ Solar Hot Water Systems: These systems utilize sunlight energy to warm water. After the installation, they have no running costs and no known impact on the surroundings.

Consider the Costs of Available Hot Water Systems

After learning what type of hot water systems are available in Australia, you need to narrow down the cost and determine what is affordable per your budget. Here is how the costs compare according to Brisbane Plumbing and Drainage: 

• Electric Storage Hot Water Systems – They are cheap to install at $1,000 – $2,000. The running costs per year can be high reaching up to $1,275.
• Gas Hot Water System – The installation costs fall between $1,500 – $3,000 while the running cost is approximated at $1,369 – $1,712 annually. 
• Solar Hot Water System – Also expensive to install at $3,000 – $7,000, however, they boast relatively low annual running costs between $319 – $690.
• Heat Pump Hot Water Systems – They can be pricey with installation costs reaching up to $3,000 – $5,000. However, they have the lowest running cost of $398 annually.

Consider Energy Source and Environmental Impact

To align with Australia’s goal of reducing greenhouse gas emission to 0% by 2050, you should choose efficient hot water systems that use clean energy sources. Common energy sources for hot water systems in Australia are:

➤ Electricity: This is used in electric heaters. Electricity can be convenient; however, it mostly comes from burning fossil fuels which is not so good for the planet.

➤ Gas: Natural gas or LPG is burned in gas hot water systems, releasing carbon dioxide thus greatly contributing to environmental pollution.

➤Sun Power: Solar heaters use energy from the sunlight, so they have no emissions. This is just clean energy, so it’s good for the planet but may be subject to climate conditions. 

➤ Ambient Heat: Heat pump systems rely heavily on ambient heat from the air or ground, so there is no burning of fossil fuels meaning less environmental impact.

For details, The YourHome initiative provides emissions data for different systems, helping you make an informed choice. 

Size and Capacity

After reviewing all the above, you need to assess how much hot water you need in your home. As a rule, allow for around 50 liters per person per day as Solar Victoria advises. For a family of four, a 250-300-liter system is often suitable.

However, consider your usage patterns and consult experts, as a larger tank may be needed if you frequently run multiple hot water appliances at once. 

Climate and Location

When choosing the best hot water system, consider Australia’s unique climate and your location. In colder regions, gas or heat pump systems may be more efficient, while solar systems excel in sunny areas.

Similarly, electric hot water systems best suit areas connected to the grid. So, make sure to check what is available to your locality as it will greatly determine the best hot water system suitable for your home. 

Maintenance and Durability

A good hot water system in Australia should have little maintenance requirements and a long lifespan. Comparing the different hot water systems available in Australia, DCM Plumbing notes that electric and gas hot water systems require frequent servicing every 6 months.

On the other hand, heat pumps and solar heaters need servicing every 1 and 5 years respectively.  

In terms of durability, gas and electric pumps have a shorter lifespan. On the contrary, solar and heat pumps are more durable, lasting up to 20+ years according to Cyanergy.

Energy Efficiency

Energy efficiency of a hot water system tells you how well it can heat water while using as little power as possible. When buying a hot water system, make sure to check the energy Rating Label.

It is a measure of the system’s energy efficiency that can give you a good idea of how it will perform. More stars mean the system is more efficient.

Warranty and After-Sales Service

When purchasing a hot water system, it’s important to check the accompanying warranty. This comes handy in case anything stops the pump from delivering hot water as intended.

Warranties also reflect that the manufacturer has confidence in every claim they make regarding their products. More years on the warranty means more confidence in the product and peace of mind for you!

So, which is the Best Hot Water System?

Without a doubt, heat pump hot water systems stand as the best hot water systems in Australia.

They use ambient heat from the air to warm water instead of electrical or gas heating. This technology, according to DCCEEW, saves 70% on heating costs associated with electrical hot water systems.

It also reduces greenhouse gas emissions by 10 tonnes over its lifespan according to ACT government thus speeding the Australian government’s  goal of reaching up to net 0% emission by 2050. 

And thanks to its cost-savings and environmental friendliness, heat pumps technology qualifies for the Australian government and local authorities’ rebates and incentives. These further lower the cost associated with heat pumps, so they are quite affordable.

The best part about heat pump hot water systems is their low running costs.

As previously noted, you spend as little as $398 annually on your hot water system with a modern heat pump installed. Consequently, the system requires only a few years for payback – typically 4 to 6 years according to ACT – Climate Choices. 

Upgrade to the Best Heat Pumps With E-Green Electrical in Sydney.

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Our licensed and trained technicians promptly and professionally handle every step of the heat pump installation process, while listening to your needs. Call 1-800-326-636 now for exciting deals on heat pump systems.

We are sure to help you find the perfect system for your needs and budget.

Hot water is essential for many household activities, such as bathing, washing, cooking, and cleaning. However, not all hot water systems are the same.

There are different types of hot water systems that use different energy sources, have different capacities, and offer different benefits and drawbacks.

In this article, we will explore the five main types of hot water systems that are available in Australia, and help you choose the best one for your home.

Heat Pump Water Heater

A heat pump water heater is a type of hot water system that uses a heat pump to transfer heat from the surrounding air to the water. It works like a refrigerator, but in reverse. The heat pump water heater can use electricity or gas as the backup energy source. The main advantages of a heat pump water heater are:

• It is very energy efficient and can reduce energy consumption by up to 60% compared to a conventional electric water heater.
• It can be combined with solar or other renewable energy sources to further increase savings and environmental benefits.
• It can provide cooling and dehumidification to the space where it is installed.

The main disadvantages of a heat pump water heater are:

• It may not work well in cold or humid climates, as it relies on the ambient air temperature and humidity to heat the water.
• It may have higher initial cost and installation complexity than a conventional water heater.
• It may produce noise and vibration during operation.

Tank Water Heater

A tank water heater is the most common type of hot water system. It consists of a large storage tank that holds water and a heating element that heats the water. The tank water heater keeps water hot at all times and ready for use. The tank water heater can use electricity, gas, or oil as the energy source. The main advantages of a tank water heater are:

• It provides a steady supply of hot water for multiple uses.
• It is relatively simple and inexpensive to install and maintain.
• It can be combined with solar or heat pump systems to reduce energy costs.

The main disadvantages of a tank water heater are:

• It consumes energy continuously to maintain water temperature, even when not in use. This results in standby heat loss and higher energy bills.
• It has limited capacity and can run out of hot water during high demand periods.
• It can take up a lot of space and may require additional ventilation or insulation.

Tankless Water Heater

A tankless water heater, also known as a continuous flow or instantaneous water heater, is a type of hot water system that heats water only when it is needed. It does not have a storage tank, but instead uses a heat exchanger to heat the water as it flows through the device. The tankless water heater can use electricity or gas as the energy source. The main advantages of a tankless water heater are:

• It saves energy and money by eliminating standby heat loss and only heating water on demand.
• It provides unlimited hot water, as long as there is enough water pressure and flow rate.
• It is compact and can be installed in small spaces or on walls.

The main disadvantages of a tankless water heater are:

• It may not be able to supply enough hot water for simultaneous or multiple uses, especially in cold climates or areas with hard water.
• It may require a higher initial cost and more complex installation than a tank water heater.
• It may need regular maintenance and cleaning to prevent scaling and corrosion.

Solar Water Heater

A solar water heater is a type of hot water system that uses solar energy to heat water. It consists of a solar collector that absorbs solar radiation and transfers it to the water, and a storage tank that stores the heated water. The solar water heater can use electricity, gas, or other fuels as the backup energy source. The main advantages of a solar water heater are:

• It is very environmentally friendly and can reduce greenhouse gas emissions and dependence on fossil fuels.
• It can save money on energy bills, especially in sunny areas or during summer months.
• It can last longer and requires less maintenance than other types of water heaters.

The main disadvantages of a solar water heater are:

• It may not provide enough hot water on cloudy or rainy days, or during winter months, and may need a backup system to supplement the heating.
• It may have higher initial cost and installation complexity than other types of water heaters.
• It may need regular cleaning and inspection to ensure optimal performance and safety.

Point-of-Use Water Heater

A point-of-use water heater is a type of hot water system that heats water at the point of use, such as a faucet, shower, or appliance.

It is usually a small, electric device that can be installed under the sink, in the cabinet, or on the wall. The point-of-use water heater can use electricity as the energy source. The main advantages of a point-of-use water heater are:

• It eliminates the heat loss and water waste that occur in long pipes running from the main water heater to the point of use.
• It provides instant hot water, without waiting for the water to travel from the main water heater.
• It is easy and inexpensive to install and maintain.

The main disadvantages of a point-of-use water heater are:

• It may not be able to supply enough hot water for high-demand or multiple uses and may need to be combined with a main water heater.
• It may consume more electricity than a main water heater, as it heats water at a higher temperature and does not benefit from economy tariffs.
• It may have a shorter lifespan and lower reliability than a main water heater.

Conclusion

There are different types of hot water systems, each with its own pros and cons. The best type of hot water system for your home or business depends on various factors, such as your hot water needs, budget, space, climate, and energy preferences.

You should compare the features, costs, and benefits of each type of hot water system before making a decision. You should also consult a professional plumber or contractor to help you choose and install the most suitable hot water system for your situation.