Rheem gas water heater temperature Adjustment Australia

How hot should you set your hot water heater temperature?

Under Australian law the internal temperature of a hot water heater must be set at 70 degrees celsius. This temperature kills harmful bacteria and preserves a safe operating temperature for your hot water system.

We would strongly discourage inexperienced people from adjusting their hot water thermostat themselves.  Not only is there the potential of damaging your hot water heater and  voiding your warranty, but you risk the potential of serious injury from electrocution.

A tempering valve will reduce the risk of hot water scalding

The hotter the temperature of your hot water heater, the greater the risk of a scalding accident.  Our experienced tradespeople can fit a tempering valve to the hot water pipe running to your bathroom and ensuite which will keep the hot water temperature below 50 degrees celsius. This reduces the risk of scald injury yet still allows hotter water to flow to the kitchen and laundry.

Still having hot water system problems?

If these steps don’t provide any solutions, we suggest you contact our service department on 0410 693 532 for advice. Our hot water service centre is open 7 days a week from 7am – 6pm. 

Hot water is our business – it’s not a sideline. Each year we install over 4,000 hot water systems in Sydney and Central Coast homes and businesses. As one of Sydney’s largest hot water system suppliers, our enormous buying powers and ability to buy direct from the manufacturer means we can pass attractive savings on to our customers.  Our fully qualified, licensed hot water heater installers have over 20 years experience each so don’t hesitate to contact us direct for advice and assistance.

Call 0410 693 532 Email us Request a quote

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The Rheem 20 is a popular continuous flow system capable of producing over 20 litres of hot water per minute and is a suitable option for small to medium sized apartments and homes.

Rheem 20L possesses a 6 star energy rating and consumes 153 megajoules of energy per hour, which is reasonable for a gas hot water system.

Rheem Q factor ensures rapid hot water delivery, and continuous flow units like this one are available in two versions: a 50 degree system and a 60 degree model, which reduces heat loss if the unit placement is a fair distance from the bathroom and kitchen. Users also have a choice between an LPG or natural gas connection. In addition, the system itself is compact, making it ideal for homes with limited space.

There’s a lot to like about these gas hot water systems. But what happens when you have a problem? For those worse case scenarios, you can take advantage of the accompanying 10 year heat exchanger warranty on Rheem gas hot water systems.

But for everyday troubleshooting, try resetting the Rheem 20 by turning it off and on again at the nearby power outlet.

Rheem 20 has straightforward troubleshooting. Every step you can take without a plumber involves checking that the water and gas supply lines are open and resetting the hot water system if required.

So if you are the owner of a Rheem 20 continuous flow hot water unit, save yourself some time and the cost of a plumber by turning your system off and on again. If this doesn’t get the unit up and running, call Jim’s Plumbing and we can provide same day hot water repair.

Rheem gas water heater temperature Adjustment Australia

Rheem 20 Troubleshooting

The Rheem 20 installation guide provides a range of time-saving troubleshooting tips to save you a service call. In case you didn’t hold on to the instruction manual, here are the potential solutions to having no hot water:

  • If you have a controller panel, make sure it’s switched on and set to the desired temperature.
  • Make sure the continuous flow system is plugged into the power and switched on. Power is required to manage the electric pilot light.
  • Make sure the gas valve is fully open. The pilot light will not achieve a consistent flame if it’s not fully open.
  • Make sure the hot water valve is fully open. A partially closed valve/tap may not send enough hot water to your faucets and showerhead.
  • Try closing the hot tap, waiting ten seconds and opening it again.
  • Try resetting the Rheem 20 by turning the system off and on again at the power outlet.

If these troubleshooting tips have failed to correct the issue, test other electric and gas appliances to see if the problem is isolated or being experienced across the home. And if this still has not fixed the problem, it’s time to contact a professional plumber for Rheem 20 repairs.

Rheem 20L Gas Continuous Flow Water Heater

A troubleshooting guide should not be taken as a sign of an unreliable system. It’s the opposite, in fact. The Rheem 20L gas continuous flow water heater is a reliable water heater used widely across Australia. Our customers favour these systems for their rapid hot water delivery and lengthy warranties. Rheem is also a trusted name with Jim’s Plumbing often recommending the brand’s water heaters.

When it comes to guarantees, Rheem provides a 10 year warranty on the system and parts. Book Jim’s Plumbing for the installation, and we’ll add a 12 month warranty on all workmanship performed by our trusted team.

Rheem gas water heater temperature Adjustment Australia

Jim’s Plumbing Hot Water System Repairs

There have been times when Jim’s Plumbing attended homes to investigate the matter only to find that resetting the water heater fixed the problem.

Resetting and troubleshooting can be required from time to time, and this problem can occur with some continuous flow water heaters, no matter the make or model.

You can save yourself the cost of a plumber by following the above troubleshooting guide and resetting your Rheem 20 by turning it off and on at the power supply. The beauty of continuous flow is that these systems provide rapid hot water every minute and on demand. So you won’t need to wait for the system to warm up before use.

For more serious repairs and new installations, call Jim’s Plumbing. We have local technicians available in your area who can install a new Rheem hot water system or repair your existing unit if the problem is more complicated than turning it off and on again. We’re available 24/7 with no additional charges after hours. Book us for a time that suits you best.

For all your hot water problems, contact Jim’s Plumbing today.

What temperature should my hot water heater be set in Australia?

7. Most domestic storage hot water heaters in Australia are installed to store water at or above temperatures of 65°C. Under the Australian Standard AS/NZS 3500.4, heated water must be stored at a minimum temperature of 60°C, to inhibit the growth of Legionella bacteria.

How do I turn up my hot water heater Australia?

Every hot water system is a little different, some will have a thermostat you can adjust without having to break out a screwdriver. "If you open the access panel at the bottom, there'll be a dial in front of you with numbers on it," Mr Ttofari says. "The higher the number is on the dial, the higher the temperature.