Dux Proflo 315S1 (315L) Questions & Answers

Hi Chris, It is our pleasure to answer your question. The unit is certified to have a 4.8kW element, your electrician will just need to fit the element - part # H0073 - to it, no other changes needed unless your electrician says so.

Regards,

The Dux Team

Hi Eric,

Thanks for your question.

The standard element fitted to a 315L water heater is a 3.6kW element.

Best Regards,

The Dux Team

You could get an electrician to change the element to a lower size. The ratings on hot water unit are typically for maximum power rating for safety, so should be no issue reducing power. It just takes longer to heat your water but that’s perfect when powering it with solar power on continuous tariff. 1800w will deliver 9kwh over a 5 hour time frame, and that should be enough to heat approx 160L of water from cold to 70 deg C. Since you have a tank twice the size at 315L, you may find that you end up with lukewarm water after five hours in the unlikely event that you completely used up your 315L the previous day. But if you wait to second day, you will be at full 70 deg C for sure. It’s important to ensure that your water tank reaches at least 60 deg C every few days at least in order to kill the legionella bacteria present in almost all water supplies.

I would think that replacing the element would be worth trying in a 5-year-old model. My Dux model was 16-years-old when it needed replacing.

Yes, thanks, must admit never had an element fail before in any Hot Water Heater I have had before, in such a short time. !!!

Hi David, Our team would like to speak with you at your earliest convenience so we can get this sorted. So we can understand the specific details can you please email through your full name, productreview username, best contact number, address where the unit is installed, model number and serial number to help@dux.com.au so we can call you back, talk through the issue and try and resolve it for you?

Regards,

The Dux Team

Have had this now settled thank you.....it appeared it was the thermostat which has now been changed and pleased to say all is OK.

Hi David,

We're happy it was all sorted now.

Please email us at help@dux.com.au if we can be of help in the future.

Regards,

The Dux Team

Hi there, We would like to resolve this issue as soon as we can. So we can understand the specific details can you please email through your full name, productreview username, best contact number, address where the unit is installed, model number and serial number to help@dux.com.au so we can call you back, talk through the issue and try and resolve it for you?

Best Regards,

The Dux Team

Hi Christina, Once you've completed your review just email through your full name, phone number, address where the unit is installed, date of purchase, model number and serial number of the unit to help@dux.com.au so we will update our warranty system details.

Best Regards,

The Dux Team

We paid a little more for a Rheem. Stay clear of Dux.

No idea mate. Think you might need a sparky or plumber to do the fuse section.

We also bought from Bunnings and had the same issue for 2 years, luke warm water. When we called Dux after a year they refused to take responsibly for being faulty from the first day since it passed 1 year warranty time. It was installed with temp valve, we thought it was due to that or season change winter/summer etc..

Dux response was 315 liter is not sufficient for 4 people, but that's what we had before & it was sufficient?!

After we got the element and the thermostat changed 3 weeks ago, now we have boiling hot water sufficient for shower and washing the dishes. ( & we didn't ask for their assistance this time)

My advice: Avoid buying DUX electric water heaters, they are bad & their after service is even worse!!!

Hi, this depends on the element you have in your hot water system. If there is a 3.6KW element, this heats 62L per hour, if there is a 4.8KW element installed this heats 83L per hour. If you look at the model number of your hot water system, it should state which element is installed.

Regards Dux After Sales.

Hi my Dux proflo is leaking from the joins and seals. When the two plumbers came to give me advice they checked the seals and overflows too, as they said the way the unit is installed affects the warranty, but they were not leaking.. The only times I have noticed it leaking from the bottom overflow outlet is when I top it up, I also find it very expensive to run because in my Dux proflo is connected to the main and not off peak power. I am told it is because of the size. Now it is turned off because the last person who inspected it said it was unsafe having water leaking everywhere, my daily electricity use has halved . To your question, 9 litres of water seems a lot, have you checked with an independent company, I have found the larger company shops that have the plumbers attached to them can give you advice on what is reasonable, also our consumer affairs is very helpful too.

Turns out it was more than 9 litres leaking after I started collecting the water in a bucket. Dix and Bunnings (who I bought if off and who installed it) have both refused to fix it. I got a plumber to fix it, cost $250. He told me it's not a quality product, so now I know, and I hope this helps other people who may be considering buying a Dux Hot Water tank!

Yes that is why I put my product review up to help other people chose with information. I want to help others. It is also time Australian Companies make quality hotwater services that last a reasonable amount of time. I suppose it is to the benefit of plumbers if they have to replace every five years too so they are not going to stand up for us.