The Best Gas Hot Water System for Your Home

Hey there! So, you’re in the market for a gas hot water system? Well, there’s a lot to consider! I mean, we all know how important a reliable hot water system is for everyday life, from washing dishes to taking a relaxing bath. 

But have you thought about going for a gas-powered option? It’s actually one of the most cost-effective ways to heat your water! Let me tell you all about the best gas-powered hot water systems out there, including what they’re good at and where they fall short. Let’s get into it!

What is the best gas hot water system to buy?

Finding the perfect gas hot water heater can be a bit overwhelming, but no worries, we’ve got your back! We’ve rounded up the top five gas hot water systems and evaluated their pros and cons based on our own experiences and the reviews of satisfied customers like you.

You’ll be glad to know that using gas to heat your water has some pretty sweet perks compared to other energy sources like electricity. Let’s dive in and explore your options!

Gas hot water system advantages

Gas hot water systems have the ability to heat your water much faster than electric systems. And that’s not all – they’re also more efficient and cost-effective in the long run. You can read out more about this in our post on gas versus electric water heaters.

If you’re living in a remote area or have limited access to electricity, then investing in a gas hot water system is definitely worth considering. Not only will it save you money, but it’ll also save you time.

Another advantage of gas hot water systems is their lifespan. They last longer than their electric counterparts, with an average lifespan of 15-20 years compared to just 10 years for electric models.

So, if you want a reliable and cost-effective way to heat your water, gas hot water systems are definitely worth exploring. Say goodbye to those long wait times and hello to a more efficient and affordable solution!

Gas hot water system disadvantages

One of the biggest drawbacks of a gas hot water system is that it’s generally more expensive to install compared to an electric system. You’ll need to pay more upfront for the system itself and the installation. Additionally, if something goes wrong and you need repairs, the cost can add up quickly.

However, if your home already has a gas line, then the installation cost may not be as high as it would be for someone who doesn’t have access to natural gas lines. So, it’s worth considering if you’re in that situation.

Another one is that they require more maintenance than electric systems. You’ll need to make sure the pilot light is always on and that there are no leaks in the gas line, which can be a hassle.

Another disadvantage is that gas hot water systems can be dangerous if not properly installed or maintained. Gas leaks can occur, which can lead to carbon monoxide poisoning or even explosions in extreme cases. That’s why it’s important to have a professional install and maintain your system.

How to choose a gas hot water system?

Choosing a gas hot water system for your house in Australia requires consideration of a few key factors. Here are some steps to guide you through the process:

Determine your hot water usage: Consider the number of people living in your home and how often they use hot water. This will help you determine the size and capacity of the hot water system you need.

Choose between storage or continuous flow systems: There are two main types of gas hot water systems: storage and continuous flow. Storage systems store hot water in a tank, while continuous flow systems heat water as it flows through the unit. Consider your household needs and preferences when choosing between these two options.

Check the energy efficiency rating: Look for a gas hot water system with a high energy efficiency rating. The higher the rating, the more efficient the system is, and the lower your energy bills will be.

Consider the cost and installation: Compare the costs of different gas hot water systems and factor in the cost of installation. Don’t forget to include ongoing maintenance and repair costs in your calculations.

Research brands and models: Look for reputable brands and models that have a good track record of reliability and performance. Check customer reviews and ratings online to get an idea of what other homeowners have experienced with different systems.

Consult with a professional: Consider consulting with a licensed plumber or gas fitter to help you choose the best gas hot water system for your home. They can provide expert advice and help you with the installation process.

By following these steps, you can choose the right gas hot water system for your home in Australia that meets your household’s needs and budget while providing an energy-efficient and reliable hot water supply.

If you’re looking for a local plumber in Melbourne we’re here to help! We’re situated in Hawthorn, the heart of the city, and service all the surrounding neighbourhoods such as Richmond, Kew, and Camberwell.

What is the best gas hot water system in 2023?

Look no further because we have the winners right here. The DUX Prodigy 4 takes the crown in the gas hot water storage system category, while the DUX Always Hot Continuous Flow water heater takes the prize in the continuous hot water system category.

What makes these two models stand out? Well, the DUX Prodigy 4 is a top performer when it comes to storing and heating water efficiently, ensuring that you never run out of hot water. On the other hand, the DUX Always Hot Continuous Flow water heater provides a steady stream of hot water on-demand, without any delays or waiting time.

If you’re looking for a reliable and high-performing gas hot water system, you can’t go wrong with either of these winners. With their impressive features and top-notch performance, they are definitely worth considering for your home. Don’t settle for anything less than the best – go for the DUX Prodigy 4 or the DUX Always Hot Continuous Flow water heater!

DUX Prodigy 4 Gas Water Heater

Introducing the DUX Prodigy 4 Gas Water Heater! It’s the latest and greatest when it comes to hot water storage systems, boasting an impressive energy efficiency rating of 4.2 stars (or even higher, depending on your usage!).

One of the best things about the Prodigy 4 is that you can upgrade to this more efficient model without needing to change the footprint. Yup, you heard that right – no need to rearrange your bathroom!

Plus, you won’t have to worry about power points with the Prodigy 4. That’s right, even if there’s a power outage, you’ll still have hot water at your fingertips. The new burner technology means that the recovery rates are faster, so you’ll never have to worry about running out of hot water when you need it most.

The Prodigy 4 comes in two sizes: 135L (perfect for 3 to 6 people) and 170L (great for 4 to 7 people). And with a 7-year warranty on the tank, you can rest easy knowing that you’re investing in a reliable and long-lasting system.

Don’t just take our word for it – reviewers have raved about the Prodigy 4’s reliability. They love how their hot water is always available when they need it, and how the installation process was a breeze. So if you’re looking for an energy-efficient, reliable, and easy-to-install hot water storage system, look no further than the DUX Prodigy 4 Gas Water Heater.

DUX Always Hot Continuous Flow Water Heater

Dux’s latest range of Continuous Flow units are amazing for Australian homes, especially if you want something compact and efficient.

The best part about these water heaters is that they only heat water as needed, which means you won’t waste energy by keeping water in a tank hot. And get this, they have an energy efficiency rating of up to 6.4 stars!

Plus, there are several flow capacity models to choose from, so you can find the perfect Dux continuous flow water heater for your home’s needs.

With a 6.1-star equivalent energy efficiency rating, these water heaters are not only super-efficient, but they’re also designed to never run out of hot water. Plus, their space-saving design means they won’t take up much room in your home!

We’re proud to bring you superior technology straight from Noritz, a leading Japanese manufacturer of household water heaters. Our electronic ignition means there’s no standby pilot light, which is great for energy savings. These units are suitable for 2-3 outlets, so they’re perfect for most Australian homes.

And the best part? Our Dux Continuous Flow water heaters are also available in 17L, 26L, and 32/min models! Oh, and did we mention their 12-year warranty on the heat exchanger, including 3 years of full parts.

AquaMax G270SS Gas Storage

Have you checked out AquaMAX Five Star Gas water heaters yet? They’ve got a range of options to suit all your needs! From the Stainless Steel G270SS to the G340SS and G390SS, they’ve got you covered. And the best part? These units are mains pressure, so no matter how many taps you’ve got running, the hot water flow remains at mains pressure levels.

But that’s not all, AquaMAX also offers Gas storage units in 270L, 340L & 390L, which come with high-quality, Stainless Steel cylinders. These cylinders store heated water at higher temperatures than standard water heaters and come with a 12 Year cylinder warranty1. How cool is that? You can read more about Stainless Steel on their website too.

If you’re looking for something more compact, then you’ll love their Gas Efficiency 270L model. It features the latest burner technology and sets a new standard in compact storage water heating. Plus, it comes with a 12 year cylinder warranty1 and excellent heating efficiency.

Rinnai HotFlo Gas Storage

This top-of-the-line Rinnai HotFlo Gas Storage system has a storage capacity of 135 litres and delivers hot water to multiple outlets without any loss of pressure. Plus, it boasts an impressive energy rating of 4.7 stars, making it an eco-friendly choice.

The Vitreous Enamel lined steel tank is built to last, ensuring a longer life for your hot water system. And with the inbuilt anode protection, you can rest assured that your tank will be protected from corrosion.

For your safety, the system is thermostatically controlled with a safety temperature shut-off, providing you with peace of mind. Plus, it comes with a pressure temperature relief valve and is suitable for external use only.

The Rinnai Gas Hot Water System is available in both Natural and Propane Gas, giving you flexibility in your choices. And if you need more hot water, the 170 litres variant is also available.

Impressively, this system can deliver up to 209 litres in the first hour, making sure that you always have plenty of hot water at your fingertips.

Bosch Pilot Ignition Gas Hot Water System

Look no further than Bosch’s Pilot models! These models have been designed with Bosch’s long-standing principles of quality and performance in mind, meaning that you can trust them to deliver hot water whenever you need it.

One of the most impressive features of these models is their continuous flow technology. With this technology, you can enjoy endless hot water without ever having to worry about running out. What’s more, you don’t even need a powerpoint to use these water heaters, which makes them incredibly flexible when it comes to installation.

Of course, as with any appliance, it’s important to ensure that your Bosch water heater is properly maintained. You’ll need to have it serviced and inspected every two years to ensure that it’s running safely and efficiently. As the owner/user of the appliance, it’s also your responsibility to keep the area around it free from debris and to provide safe access for anyone who needs to inspect or service it.

When it comes to replacement parts, it’s important to only use original spare parts that have been supplied by an authorised distributor of Genuine Bosch parts. This will help to ensure that your water heater continues to function as it should, without any compromise to its quality or reliability.

Bosch have been manufacturing water heaters and hydronic heating boilers for many years, and they’ve paired years of experience with the latest in German engineering to create the highest quality products possible. They test every tiny detail of their appliances before they leave the factory, subjecting them to extensive stress tests to ensure that they meet their high standards of function, quality, and reliability.


Gas hot water systems have gained popularity recently due to the increasing focus on energy efficiency. In Australia, where gas is readily available, these systems have become the go-to choice for many households and businesses.

However, it’s crucial to note that installing a gas hot water system is not a DIY task. It’s essential to hire a professional plumber and gas fitter to ensure the safe and efficient operation of your system.

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