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The 10 best tankless water heaters to buy in Australia

Picture of a tankless water heater

Finding the best tankless water heater system for your home can help save a lot of money in energy bills, although knowing what to look for in a heating system can be challenging for anyone that isn’t a plumber. Given the cost of paying for a new heating system, you will want to put a lot of thought and consideration into your decision, which is not always easy if you are unfamiliar with what a tankless water heater is and how to choose the right one for your home.

To help with this, we have created a handy buying guide that covers all the information that you need to know to find the best tankless water heaters for your home.

What are tankless water heaters?

As the name suggests, a tankless water heater is a type of water heating system that does not use a large water tank to store heated water. Instead, cold water passes through a pipe and into the heating unit, which uses either a gas burner or electric element to instantly heat the water. Whenever you turn on hot water, you instantly get a constant supply as there is no need to wait for a tank to fill with heated water. Therefore, a good tankless water heater makes hot water very convenient and energy-efficient.

Why should you buy a good tankless water heater?

One of the major benefits of using tankless water heaters is reduced energy consumption. Because there is no tank to fill and store with hot water, it can help to reduce water heating bills. Furthermore, while the initial cost of installation is higher than a tanked water heater, the best tankless water heaters are much more durable so will last significantly longer. This means you can save money over the long term, making it a fantastic investment for many homeowners.

How to choose the right tankless water heater in 2024?

Another picture of a tankless water heater

Choosing a new tankless water heater can be daunting for those unfamiliar with water heating systems. So here are some things to consider that can make the process easier:

  • Hot Water Consumption: You need to determine how much hot water you consume daily so that you can select a tankless water heater that meets the demand. Simply list all the fixtures in your home that use hot water at any time (e.g. faucet, shower head, dishwasher) and combine their flow rates. To check flow rate, simply refer to the manufacturer instructions for any fixture you’ve bought or check online for a rough estimate of each fixture.
  • Temperature Rise: This refers to the temperature that the heater uses to warm incoming water to the desired temperature. To calculate, you need to determine the average temperature of incoming water and subtract from the desired incoming temperature.
  • Power Source: A tankless water heater is either gas-powered or electric, so consider which is best for your needs. Electric is suitable for smaller water heaters designed for point of use (e.g. heating water for just the shower), while gas-powered water heaters are best for an entire household’s water heating.

What is the best kind of tankless water heater in Australia?

There are two main types of tankless water heaters available to buy:

  • Gas-powered Tankless Water Heaters: Gas-powered systems are more powered and the most used, being the best tankless water heater for an entire household. However, you need to ensure that appropriate piping is in place and consider its location relative to where the heater will go, otherwise extensive installation work may be necessary.
  • Electric Tankless Water Heaters: Electrically powered systems are only recommended for point of use rather than a whole household, as it puts too much strain on the electrical supply when forced to heat too much water. It is more affordable to install, however.

Top 10 list of tankless water heaters in Australia (2024)

The bestseller list compares brands and their tankless water heaters. Which tankless water heater is the best?
Best choice TOP 1
Image of Fdit  tankless water heater
Water Heater, White Mini Electric Tankless Instant Hot Water Heater,…
  • QUALITY ASSURANCE: We hope you have the best shopping experience with us and with…
  • EASY TO INSTALL: Just install the small water heater on a shelf, wall or bracket…
  • SAFE TO USE: Stainless construction with mini design, it is durable, elegant and…
BUY NOW
Offer TOP 2
Image of HIKOAN  tankless water heater
HIKOAN Instant Water Heater 220V 3500W Mini Electric Tankless Hot…
  • This is a water heater for the application of changing the cold water into hot water…
  • ABS construction with mini design, it is durable, elegant and fashionable.
  • Safe heater, electricity saving, water saving, no pollution, no exhaust gas.
BUY NOW
TOP 3
Image of Ecosmart ECO 11 tankless water heater
EcoSmart ECO 11 Electric Tankless Water Heater 13KW at 240 Volts with…
BUY NOW
TOP 4
Image of Mingzhe RLOAULXXE22596W-EU tankless water heater
Mingzhe Instant Water Heater 3KW Mini Electric Tankless Water Heater…
  • Using high-quali cast aluminum heating body, water and electrici separation, no scale,…
  • Built-in intelligent chip, strictly control the water temperature, more stable. Wi…
  • Instant electric water heater can guarantee 24-hour hot water without waiting, which…
BUY NOW
TOP 5
Image of Devanti GWH-LPG-8L-SW-BG-DI tankless water heater
Devanti Gas Water Heater, 8LPM Portable Instant Tankless Hot Watering…
  • WARRANTY: Gas Safety Certified. This product comes with a 1-year warranty. Scan user…
  • Hassle-free Setup: 1. Hang heater up with built-in handle. 2. Connect to gas via…
  • Convenient Control LED temperature display clearly shows temperature and there are…
BUY NOW
TOP 6
Image of Yunir  tankless water heater
Electric Water Heater, White Rapid Heating Mini Tankless Instant Hot…
  • Stainless construction with mini design, it is durable, elegant and fashionable.
  • Safe heater, electricity saving, water saving, no pollution, no exhaust gas.
  • Freely adjust water temperature by water flowing, simple operation.
BUY NOW
TOP 7
Image of MSQL 102-831-732 tankless water heater
220v Tankless Instantaneous Electric Water Heater with LCD Display…
  • Product parameters: heating material: stainless steel; product voltage: 220v; heating…
  • Energy efficient: instant on and off, circulating heating, so you can save a lot…
  • Remote operationWith remote control, you can set the temperature by remote control,…
BUY NOW
TOP 8
Image of MSQL 102-374-732 tankless water heater
Electric Water Heater 220V-240V 3500W Mini Tankless Instant Hot Water…
  • Hydropower separation technology to prevent leakage short circuit, safe and secure…
  • thermostat body adjustment, avoiding cold and hot
  • Ultra-temperature anti-scalding protection design, 55 °C temperature peak
BUY NOW
TOP 9
Image of ALisasin JJM tankless water heater
Tankless Water Heater Mini Instant Hot Water Heater Portable Outdoor…
  • Safety Insurance: There is tankless water heater a leak -proof protection internally.…
  • Applicable Place: This tankless water heater is suitable for various locations such…
  • Convenient and Small: Tankless water heater can be operated by the remote control…
BUY NOW
TOP 10
Image of EVASEN WL0528 tankless water heater
Electric Instant Hot Water System,3000W Tankless Shower Heater with…
  • Featuring an AI smart chip, this heater delivers thermostatic hot water and has a…
  • Control the heater effortlessly with the included remote control, adding convenience…
  • . Compact and tankless design ensures space-saving installation while preventing…
BUY NOW
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