Repair, Maintenance and Installation


Instantaneous hot water systems are a popular choice in Perth homes, as the more affordable and highly energy efficient hot water solution.

An instant hot water system provides instant access to hot water as needed and is an efficient choice for residential homes and families.

At Proud Plumbing & Gas, our skilled plumbers and gas fitters can supply and install a high-quality instant gas water system at your property and get it up and running the same day. Additionally, we offer maintenance and repair services for your existing instant gas hot water system.

We only supply the best instant gas hot water systems from trusted brands; Rheem and Rinnai.


How Does An Instantaneous Gas Hot Water System Work?

Instantaneous gas hot water systems (or a continuous flow system) heat water on demand.

When a hot water tap is turned on, the gas burner is activated, heating the water through a heat exchanger pipe.

Instant gas hot water systems do not store heated water tanks but heat only the required amount.

The Heating Process

  • A hot water tap is turned on.
  • Water enters the heater.
  • The water flow sensor detects the water flow.
  • The computer automatically ignites the burner.
  • Water circulates through the heat exchanger.
  • The heat exchanger heats the water to the designated temperature.
  • When the tap is turned off, the unit shuts down.

Benefits of Instant Gas Hot Water Systems

Endless Hot Water Supply

One of the most significant advantages of instant gas hot water systems is their ability to provide a continuous hot water supply.

Unlike traditional water heaters that can run out of hot water as they deplete the stored supply, instant systems heat water on demand. This means that whether you’re the first or last one in for a morning shower, you’ll always enjoy the same steady stream of hot water.

Energy Efficient

An instant gas hot water heater is designed for high energy efficiency. They only operate when hot water is needed, significantly reducing energy wastage associated with heating and maintaining the temperature of a large water tank.

This on-demand heating avoids the energy losses known as “standby losses” associated with tank storage heaters. Over time, this operational efficiency can lead to less running costs and noticeable reductions in energy bills.

Environmental Impact

For those conscious of their environmental impact, instant gas hot water systems offer a greener alternative. These systems have a lower carbon footprint, reducing greenhouse gas emissions substantially.


Although the initial installation cost of an instant gas hot water system may be higher than that of traditional tank systems, the long-term savings are substantial. Reducing ongoing energy costs means the system pays for itself over its lifespan.

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You can book an emergency plumbing service or get a quote by calling us directly on (08) 6185 3008, if we do not immediately answer the phone we will endeavour to get back to you as soon as possible.

Yes, Proud Plumbing and Gas provides 24/7 emergency plumbing services to all suburbs in the Perth metropolitan area.

Yes, you are required to be on-site to meet your plumber.

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Instant Gas Hot Water System Installation & Maintenance

Get In Touch With Our Expert Gas Fitters Today

Get in touch with our friendly team today to install a new system or upgrade your existing instant gas hot water system. We have many different models available to suit a variety of hot water requirements. We provide obligation-free advice and quotes, handle full installation, and offer maintenance and repair services as needed for your property. For all of your water heating needs, trust the experts at Proud Plumbing & Gas.

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