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Hot Water Burns Like Fire

Queensland law since 1995 has been that hot water delivered to bathrooms be regulated so that it does not exceed  50°C. The most common method to achieve this is by installing a tempering valve.

At 60°C a serious burn can happen in 1 second
At 55°C a serious burn would take 10 seconds
At 50°C a serious burn would happen after 5 minutes

 

blue TV

If your hot water unit has a valve that looks like the one pictured on the right then you have a tempering valve installed. The most common valve installed has a blue cap  but valves used on gas units frequently have a green cap and those on solar or heat pump units hQueensave an orange cap.

It is almost a guarantee that your valve has never been serviced as most home owners do not realise they even had such a device or that they are required to be tested and certified annually. Very simply a tempering valve blends hot and cold water to deliver hot water at a constant temperature and thus reduces the risk of scalding accidents.

Recent litigation places a deed of care to ensure the safe delivery of hot water in domestic situations. Very simply this means you should be having the tempering valve serviced annually whether you are a home owner or a property investor or a real estate property manager. To ensure your hot water delivery is safe you need an annual report signed by a licensed plumber that states:

  1. the model, manufacturer and identification of the tempering valve installed
  2. the temperature of the hot water recorded during the test
  3. details of the test undertaken, details of what maintenance was undertaken and what parts were replaced
  4. the location of the valve in the property
  5. a reference to the test method undertaken being compliant with AS 4032.3, Appendix C

Duty of care provisions apply to us all and without an annual test and a written report you leave yourself liable if anyone suffers a burn from your hot water. Most electric hot water units heat water to 70°C so that has the potential to produce a serious burn in 1 second without a correctly working tempering valve.

Whywait Plumbing are contacting clients to book in compliant testing, maintaining and reporting of your tempering valves but if you have any concerns over the temperature of your hot water contact us now to schedule your service.

About Gary Mays

Gary Mays opened Whywait Plumbing Services on the Gold Coast in 1976 with his wife Michele. Gary is an experienced plumber with some 40+ years of experience. Now his three sons are also working within the business. Gary is an active member of the Gold Coast North Chamber of Commerce.


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