The legislation requires those charged with installing hot water systems Gold Coast wide and across Queensland to ensure that a tempering valve is fitted for:

It’s worth noting that not all hot water systems require a hot water tempering valve. For example, tankless continuous flow models do not require one. This is because you are not storing water in a hot water tank. And you’ll likely not need one if your electric or gas hot water system already has a thermostatic mixing valve installed. But more on them later.

Another thing you do not want to experience is low hot water pressure. Over time, and especially if your system is 5+ years old, hot water tempering valves can get clogged with mineral deposits and other water 'gunk' and contaminants. These relatively inexpensive valves also suffer from wear and corrosion, so a regular inspection is a very good idea. Plus servicing your tempering valve and your system, in general, can prolong the lifespan of your hot water system.

These often-overlooked pieces of hardware each serve a vital role in the installation of a hot water storage system to ensure you and your family are safe from burns every time you turn on the hot water tap.

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It would be a brave soul to argue against the efficacy and importance of the humble hot water tempering valve. No idea what it is, what it's for, and why the Queensland government cares so much that it's written legislation about it? Read on:

But even with all that legislation in place, the Queensland Building and Construction Commission reports that scalding injuries in bathrooms and showers continue to occur, highlighting the need to urgently detect and address faulty hot water tempering valves.

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Thermostatic valves offer more precise control than tempering valves. They adjust the mix of cold and hot water in real-time to maintain a constant temperature. It makes them ideal for fluctuating water supply conditions. Tempering valves, on the other hand, blend heated water from your hot water system with cold at a fixed ratio, set to a safe temperature, usually around 50 degrees Celsius. Both types comply with Australian standards. However, your choice depends on your specific needs: whether it’s precision or consistent safety you’re after.

While their purposes are similar, thermostatic mixers and tempering valves have some distinct differences worth exploring. Join us as we explore how these valves not only ensure your safety but also enhance the efficiency of your hot water supply.

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While the term “thermostatic” might seem like it’s associated with electricity, it’s not. It refers to the ability of the valve to regulate temperature with impressive accuracy.

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If you’re installing replacement hot water systems or a new hot water system as part of a new home build, it is mandatory to have a tempering valve installed in any bathroom.

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Remember, whether it is the installation of a new shower or an entire bathroom, it is critical to appreciate the roles these valves play.

A tempering valve is a key component in Australian home hot water systems. It plays a pivotal role in ensuring your hot water is safe. Also known as a hot water mixing valve or a mixing tool, they cleverly mix hot water from your hot water system with cold water. It effectively reduces the temperature to a safer level before it reaches your tap. You will have a tempering valve installed to make sure no scalding hot water could harm users.

Consulting with a licensed plumber will further guide you in navigating the world of thermostatic mixers and valves and making the best selection.

Furthermore, the addition of a thermostatic mixer means these showers swiftly neutralise any harmful bacteria that may breed in stored water. With this, a safer and healthier shower experience is guaranteed.

The life expectancy of a tempering valve is typically around 5 to 10 years. However, this varies based on the quality of the stored water, water usage and the installation.

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Moreover, an observable decrease in water pressure could result from a defective tempering valve. The valve could restrict the flow of hot water to a particular outlet, such as the outlet of a shower or a tap.

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Comparing thermostatic and tempering valves is essential for any homeowner looking to make an informed decision about their hot water system. While both valves regulate water temperature, they operate differently.

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However, some thermostatic showers or mixers do use electrical components to enhance their performance, but this is not a necessity.

Please note: This information is provided for advice purposes only. Regulations differ from state to state, so please consult your local authorities or an industry professional before proceeding with any work. See our Terms & Conditions here.

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Unlike tempering valves, they can respond instantly to changes in water flow or temperature. This guarantees a consistent and safe water temperature at all times. This makes them especially valuable in settings where precise temperature control is critical. These include homes with vulnerable residents or healthcare facilities with large capacity systems. These valves help to prevent scalding. They also help in controlling the growth of harmful bacteria like Legionella in your water system.

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Knowing the differences between thermostatic and tempering valves can be useful, whether you’re a plumbing enthusiast, or just want to understand your home better.

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Noticed any of those signs of a failing tempering valve? If so, it's definitely time to get the full and safe functionality of your hot water system checked - and In Deep Plumbing will be more than happy to assist! We're the Gold Coast plumbing specialists in testing, repairing, replacing and installing hot water tempering valves, so get in touch today for a speedy response.

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However, the responsibility is on the homeowner's shoulders to watch out for the most common signs that they may be dealing with a faulty tempering valve:

The key part of the valve is a temperature-sensitive element. This element expands or contracts based on the water temperature, influencing the water mix. Therefore, the thermostatic system keeps the balance of hot and cold water, delivering a stable outlet temperature.

In a nutshell, that's the heart and soul of Queensland's tempering valve legislation - preventing crippling, scarring and agonising hot water injuries. For indoor installations, especially for high-rise living in the Gold Coast, hot water systems are also:

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While the features of thermostatic mixers and tempering valves diverge to some degree, both are indispensable in regulating water temperature for safety and comfort. The choice between the two often comes down to a user’s preferences and specific needs.

In just about every case, the government requires that hot water systems installed in the Gold Coast and beyond are completed with a temperature control device - which, in practical terms, is a hot water tempering valve. The way it works is simple and yet ingenious: it mixes the hot water with cold water to produce water that won't scald you, your kids and other vulnerable people.

Although we're concerned about scalding-hot water, a major sign of valve failure or problems could actually be a stone-cold shower or bath. If a failing hot water tempering valve is the culprit, the next stream of water could be the dangerous one.

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If your hot water tap is completely turned off and warm water is still dripping out, it might not be the washer - it could be the tempering valve. This crucial component features a ball-type mechanism that can become unseated and ultimately completely dislodged.

The TMV responds automatically to pressure or temperature changes in the water supply, adjusting the mix of hot and cold water.

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Thermostatic mixing valves are the unsung heroes in the world of your hot water unit. These sophisticated devices automatically adjust the mix of cold and hot water to a pre-set temperature.

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As your tempering valve ages, the accuracy of the detection and control of water temperature can suffer - especially if the hot water system isn't a modern one. But while newer valves are better protected with temperature-balancing features, a clear sign that something's amiss is when your warm shower suddenly gives you a blast of really hot water, then it goes a bit cold, then it returns to normal.

But why do you need a tempering valve in the first place? Water is stored at 60°C in a storage tank to prevent the growth of dangerous bacteria such as Legionella. However, if hot water was delivered at that temperature it would cause third-degree burns any time you ran the hot water tap. That’s why a tempering valve is used to reduce the hot water to about 50°C.

A thermostatic system mainly operates based on a thermostatic mixing valve (TMV). It blends hot and cold water to secure a consistent, safe outlet temperature, serving as a top-notch safety feature to prevent scalding.