Instantaneous Hot Water System

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Want to know more about instantaneous hot water  systems? Or, need instantaneous hot water system repairs? Jim’s Plumbing can help.

If you’re thinking of switching to an instantaneous hot water system, call Jim’s Plumbing on 1300 133 509. Our licensed plumbers can provide all the advice and expertise on hot water systems that you could ask for.

Why switch to an instantaneous hot water system?

Many homes are now switching to instantaneous hot water systems for a number of reasons, including:

Compact size

Unlike tank storage hot water systems, instantaneous hot waterunits don’t take up much room. They can be installed either inside or outside your home or business. Their sleek, compact design is more aesthetically pleasing compared to bulkier units, and provides you with a greater range of choice when deciding where it should be installed.

Energy efficiency

Instantaneous hot watersystems are also more energy efficient. Because instantaneous hot watersystems only heat up the water as you need it, energy is not wasted on heating up water that doesn’t get used. Not only are they more energy efficient, but instantaneous hot water systems will provide you with a continuous flow of hot water. This means you won’t be left shivering under a cold shower because the hot water supply has run out, like storage tanks systems often can.

Temperature control

Another benefit of instantaneous hot watersystems is that the temperature can be remotely controlled. This means you can pre-set different temperatures for different zones of your home. This feature is particularly useful for families with young children, or the elderly, where the hot water temperature in the bathroom can be set lower than the temperature in the laundry.

Which brand should I choose?

Once you’ve decided to switch to aninstantaneous hot watersystem, you may be overwhelmed at the choice of brands available. However, our plumbers are always happy to offer expert advice to guide you with your decision. We often recommend the following brands: 
·     Chromagen
·     Aquamax
·     Dux
·     Rheem
·     Rinnai
·     Bosch

If you have a preference for another brand that we haven’t listed here, please let us know so that we can order it in and install it for you.

Give us a call!

At Jim’s Plumbing, we believe you should never be without hot water. That’s why we’re available for same day 24/7 service, even on weekends and public holidays.

For all your instantaneous hot water system repairs, replacements and installations, give us a call on1300 133 509.

What is a Continuous/Instantaneous hot water system?

Nowadays we are seeing a shift away from traditional storage hot water systems towards instantaneous, or continuous flow hot water systems, also sometimes referred to as a tankless hot water heater.

If you currently have a continuous flow hot water heater that requires a repair or a replacement, or perhaps would like to upgrade or newly install a continuous flow hot water system? Then call the hot water experts from Jim’s Plumbing.

We have NO INTEREST EVER* payment plans available and have a plumber on call 24 hours a day, 7 days a week, including all public holidays.

No Interest Ever!* Payment Plan Options Available

No Interest Ever!* payment plan options available on hot water heater replacements to help ease any financial stress this burden may cause. If your hot water heater is leaking, or you have no hot water, we can often have a plumber to you within the hour*.

A traditional storage hot water system stores a limited amount of hot water within the tank, as shown in figure 1.1. As this hot water is used, cold water then enters the storage tank to replace it. Reheating continues after the flow of hot water has ended. Storage systems take time to re-heat water, and can result in periods of cold water if you are using a large amount of hot water in a short period of time (depending on the size of the storage tank). Often storage systems can be less expensive to purchase than an instantaneous hot water system, which is why some people choose to continue to use a storage hot water system.

Figure 1.2: Instantaneous Hot Water System Image

In contrast, figure 1.2 shows how an instantaneous hot water system is used. The system is designed to heat water only at the time it is being used, rather than storing water for later use – which is a much more efficient way as energy is not wasted heating any stored water to keep it at a constant set temperature. When hot water is turned on, for example when a tap is turned on in the home, and an instantaneous hot water system is in use, the water flow activates a valve or switch that causes gas or electricity (depending on the type of instantaneous system installed) to flow to heat water as it passes through a heat exchanger. When a hot water tap is turned off, the flow of water ceases and the unit shuts off. As a result, hot water is continuous – so you have a more reliable and efficient hot water system for your home or office that will provide you with hot water ‘on demand’.

Instantaneous hot water system

Why choose an Instantaneous hot water system?

There are several reasons why an instantaneous hot water system might be the better choice for your home or office, instead of a storage hot water system. Firstly, the system is a continuous flow of hot water, so your system will be more reliable – and you can have hot water for longer. In addition to this, instantaneous systems will take up less room – whether installed internally or externally to your home or office as they are compact in size and can often be installed inside a recess box on an exterior wall of your property. Storage systems tend to take up much more space as they require more room due to their required storage cylinder.

Another exciting feature available as an optional extra with many models of continuous flow hot water heaters are temperature remote controllers. These remote controllers allow you to pre-set your desired water temperature for different areas within your home. This eliminates the need to constantly fiddle with the hot and cold taps to reach your perfect hot water setting and greatly reduces the risk of scalds or burns to young children, the elderly or the mobility impaired.

What types of Instantaneous hot water systems are available?

Instantaneous or continuous flow hot water systems are becoming more and more popular, and a number of leading brands are manufacturing these systems.

Choosing the Best Instantaneous Hot Water Brands

We recommend the following instantaneous hot water systems:







…..AND MORE! If you have a preferred hot water system brand that is not listed here – we can order and install it for you!

Simply book a plumber online now by clicking this link, or phone 1300 133 509 to book now.

Choosing the Correct Hot Water System

Choosing the correct hot water system can be difficult, as there are so many options to choose from; Click on the links to find out more about these systems.




Heat Pump


Gas boosted solar

Simply book a plumber online now by clicking this link, or phone 1300 133 509 to book now.

*NO INTEREST EVER!* PAYMENT PLAN, “Fees, terms and conditions apply”.

No Interest Ever!* Payment Plan offered through Certegy Ezi-Pay Express. No Interest Ever on your hot water heater replacement or new supply and installation, gas service, water service or drain replacement.

Information on this page is subject to change. Commercial hot water systems are also available on enquiry.

*Conditions apply