Shower temperature controls, Thermostatic Shower Use, Thermostatic Tap, Plumbers, Specifications, Thermostatic Showers are back, Mixing Valve, assisted living, How it works, Therm-oz

Thermostatic Taps - How Can I Convert Old Shower Taps to a Mixer?

If you’re planning to install a shower mixer in Australia, you want to make sure that you get it right the first time. There are a few different factors to consider, including the type of wall you’ll be installing it on, the location of the pipes, and the specific model of the shower mixer that you choose. Whether you intend to convert old shower taps to a mixer or are installing into a new bathroom, it’s always a good idea to consult with a professional plumber or contractor to ensure that the installation is done safely and correctly.

Already popular throughout Europe, installing a shower mixer in Australia can be a great way to upgrade your bathroom and improve your daily routine. With the right preparation and professional help, you can enjoy a safe and functional installation that meets all of your needs.

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The Therm-Oz shower mixing valve is designed to AS4032.4 and WaterMark licenced WMK26224. 

This means it fully conforms to the Australian Plumbing code, making it perfect for not just domestic use but hospitals, nursing homes, and the mining industry.

Two Tap Conversion

Rob shows you how to convert and existing two-tap shower into a thermostatic shower with the Therm-Oz Reno Kit.

Note: We now include “cranked arms” in every kit to convert tap spacings from 80mm – 230mm.

Check out our FAQs.

Flick Mixer Conversion

Sarah recently changed her home from flick mixers to a Therm-Oz thermostatic valve.

Hear her experience and what the process entailed.

Leaking Breech

If you’ve got a leak in your shower breech (the pipework in your wall behind the tiles), with the Therm-Oz Reno kit the pipework becomes redundant.

Once the adaptors are put in and screwed in place, they seal flush on the seating so no water travels up the pipework.

Therefore, the problem of the leaking breech is cured with the Therm-Oz Thermostatic Shower Reno Kit.

Bad Seating

If the shower breech has a bad seating, that can no longer be re-seated, the Therm-oz Reno Kit can still be installed as long as one seating is still good.

Use PTFE tape on the adapters screwed in to each side of the breech and the spud outlet. Because one seating is still good, there is no chance of the cold supply pushing against the hot. PTFE will ensure no external leaks because of the bad seating. NO NEED TO CHOP OUT THE BAD SEATING SIDE!

If one of the seatings is bad, and still letting by, it can’t travel horizontally to the other side because it’s sealed off. It also cannot come out the spud as that is blocked off.

The only way the water can come out is forwards. Once the valve is finally on, it’s isolated with the on/off handle.

Leaking seating cured with the Therm-Oz Thermostatic Shower Reno Kit.


Chrome “cranked arms” are included to convert a tap spacings that are between 80mm and 230mm to the 150mm required by the Therm-Oz thermostatic shower valve.

These are installed by hand tightening the 2 chrome cranked arms with washers and rotated to approximately 150mm. Then using the other washes, connect the shower valve to the chrome cranked arms. Adjust and level, then tighten with a spanner for a secure fit. Care must be taken with spanner on chrome.

Therm-Oz Thermostatic Showers
Therm-Oz Thermostatic Showers
Therm-Oz Thermostatic Showers

“recommending these over bridge replacements in the future”

Great product, will be recommending these over bridge replacements in the future.

Adam Breen

“easy to install and a great way to modernise your bathroom”

From a plumbers point of view this is an amazing product, it’s so easy to install and a great way to modernise your bathroom. As a new dad I love the idea that I can set the temperature and won’t be worried about my child getting scoulded. A great concept and one I recommend to anyone looking to upgrade there showers.

Glenn Brown
QA Plumbing, Gas & Drainage

“the way forward for showering”

I fitted a thermoz thermostatic shower mixer it could not have been more easy to install the customer was delighted with the product and its definitely the way forward for showering great product!

Jason Skipper
Future Plumbing & Gas WA

“Great bit of kit , fully recommend Therm-Oz for anyone”

I’ve installed a few of these for customers fed up of fixing leaking taps, they convert your two tap system to an awesome thermostatic mixing valve. Great bit of kit , fully recommend Therm-Oz for anyone

Jason Mellor
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