Buying a new hot water system comes with a lot of questions. A hot water system is an integral part of the household – not only is it really important for ensuring that there’s enough hot water for everyone in the family, but the efficiency of the system is also going to be important in the long term for your energy bill and greenhouse emissions.

If you’re unsure about whether you need a new hot water system, or what kind of new hot water system you need, here are the key questions you need to answer before making your decision:

Do I need hot water replacement?

Traditional hot water storage systems – you know, the big tanks taking up a lot of space in your laundry – should be replaced approximately every 8 to 10 years or so. The reason for this is that these storage tank’s water colour either turns rusty and the tank starts to leak, or it could lose the insulation efficiency, meaning more energy is being used to keep the water hot.

A replacement hot water system has a short-term cost, but you start saving money immediately on your energy bill. In general, too, the technology of hot water systems develops quite quickly, so ten years down the track you are looking at a hot water system that’s noticeably more efficient than what your old system was when you first bought it.

What Are My Hot Water Needs?

You might be able to answer this question fairly easily if the reason you’re buying a new system is that you’re running out of hot water too easily. Your family’s hot water needs come down to how many of you there are, whether you all live on a similar schedule (i.e. all showering before going to work/school), and how many appliances you use.

Your average household member uses up 50L of hot water each day, so if you add that up you can get a rough idea of the amount of storage you need – but you’ll need to add more for appliances like dishwashers and washing machines.

The other thing that will determine your hot water needs is the layout of your house. For example, a continuous hot water system can be a really good solution if your family is regularly running out of water – but if your family is using 2 or 3 showers at the same time, a single instantaneous system probably won’t have the water pressure to cope.

A good idea is to talk to Australian Hot Water to get a detailed analysis of how your family consumes hot water. As hot water specialists, we take the time to discuss your lifestyle requirements, any concerns or priorities you have about energy usage, the configuration and location of your property, and your budget to help you confidently buy the hot water heater that’s right for your needs.

Hot Water Systems We Install


Electric is the most straightforward system to buy because it only requires an electric power supply. You can actually buy an electric hot water system online and install it yourself. But we would recommend that you get our technicians to install it so that the system is properly integrated in your home.


A gas system is usually slightly more expensive to buy and install, but is also more efficient when up and running. If you want to buy a gas hot water system, you should be aware that you need to be connected to the natural gas mains supply line, or be able to be connected to it.


Buying a solar hot water system can be a great investment to take care of a big portion of your energy bill. A solar system will also come with an electric or gas booster to make sure the system keeps supplying hot water, even in bad weather.

Continuous Flow

A continuous flow system offers the advantage of never running out of hot water. On the downside, it offers less pressure, so it’s probably not suitable for supplying a large household.

Our team of qualified and licensed plumbers, gasfitters and electricians are certified installers for a variety of hot water types and brands

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Deals and Offers

Whether you’re looking for a new hot water system installation, maintenance services, or upgrades, our range of specials are designed to suit your needs and budget. Don’t miss out on this opportunity to save money.

Where to buy hot water systems

We have conveniently located showrooms and service centres across Sydney and NSW. Our locations include Alexandria, Belmore, Caringbah, Leumeah, Moorebank, Mona Vale, Seven Hills, Fyshwick in Canberra and Cardiff in Newcastle.

If you need help to buy a water heater, call us today

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