Instant electric water heater installation

At the end of a long day, nothing’s better than relaxing in a warm bath or shower. If you want plenty of hot water without high energy bills, a HWS Brisbane is a great option. These handy little appliances give you on-demand hot water without breaking the bank. When you’re ready to replace your hot water heater, use this guide and decide if a hot water system is worth it for you.

HWS Brisbane provide fast energy efficient water heating. They can cover a variety of demands – from large family homes with more than one bathroom requiring high peak loads and moderate to high water usage, to holiday homes or small homes requiring occasional use.

HWS Brisbane are also typically installed outside, which can free up space inside your home. The models we install are modern and stylish, so they add to your home environment.


We provide a free of charge quotation service for Brisbane Qld. Our free of charge quotation service includes fixed price quote post consultation and valuable advice for your repair project. All our consultations are provided by ZORAN STOJKOVIC with more than 25 years of industry experience!

So hurry and take action by filling our online form or calling us at

0411 474 971​

What do you want about install Hot Water System

Installing an electric water heater isn’t as difficult as you might think, especially if you’re a DIY kind of person. But before tackling the job, you should consider that you will need to do some basic plumbing as well as electrical work. If these kinds of tasks make you nervous, there are plenty of reputable company’s you can call to install your new water heater. But, if you’re up to the challenge, you can save yourself some money and do it yourself.

Electric water heaters tend to only last 8 to 10 years before they need to be replaced. Just because your water heater is leaking, doesn’t mean that it has reached the end of its life. Before buying a new water heater, you should Troubleshoot the leak if you haven’t already. Many times a leak can be repaired. However, if you find the source of the leak is from the tank itself, your only option is to replace the water heater.

Electric Hot Water System Installation

Premium Water Heater Installation Service

HWS Brisbane has expert electricity fitters with many years experience installing electric water heating systems throughout Brisbane City. We are prompt, work to our quoted price, treat your property and time with respect, and tidy up after ourselves.

Preparing to install an electric water heater

If you’ve determined that you need to purchase a new water heater you may want to check our contact details to help you find the best one to meet your needs. And, if you decide to install the water heater yourself, you’ll need to remove your old water heater and dispose of it properly.

Electric water heater installation

Installing an electric water heater is much easier than installing a gas heater, but it’s still a bit of a challenge. If you’re uncomfortable working with electricity and plumbing we highly recommend hiring a professional to do the installation, in addition, they’ll typically dispose of your old water heater for you.

Tools and Supplies

Step by step for your installation of hot water system

1. Disconnect the Electricity

Turn OFF the electricity to your water heater at the circuit breaker panel. 

Check the water heater wiring with a voltage tester to make sure that the unit is off. This is not covered in the video below, but you should always check that the water heater is not receiving any electricity after shutting it off at the circuit breaker before working on it.

2. Drain the Tank

Open a hot water faucet and allow the water to run until it is cold. This step is not covered in the video, however, it will ensure that you’ll be able to safely drain the tank without being scalded.

Shut off the cold water supply to the water heater (located at the top of the unit). 

Connect a hose to the water heater’s drain valve. Open the valve and drain the tank outside (or to a floor drain, or even into buckets).

If you closed the hot water faucet in Step 1, you should open it again. You can also open the T&P valve. This will help the water drain faster by allowing air into the tank.

3. Disconnect the Electrical

Disconnect the electrical wires on the top of the water heater. Be sure that you turned off the circuit breaker at the breaker box first. Then, before starting, check the wires with a voltage tester.

Cap the wires off and label (or take a picture) of them to avoid any future confusion when you are hooking your new water heater up.

4. Disconnect the Plumbing

Disconnect the hot and cold water supply lines. If your water heater was plumbed with copper piping, you may need to cut the pipes. If you need to cut the pipes, use a tubing (pipe) cutter and leave as much of the pipe as possible.

If the T&P discharge pipe is in good repair you can remove it from the T&P valve and reuse it on your new water heater.

5. Remove the Old Water Heater

Once the tank is empty, remove the old water heater with a dolly.

Move the new tank into place. We recommend setting the new tank into a drain panLearn why

Check that your electrical supply will adequately reach the tank. Double check that you can access the panels and the drain valve for maintenance.

6. Prepare the Plumbing Lines

If your old water heater used copper piping, and it was necessary to cut the pipes, you’ll need to prepare the pipes using sandpaper cloth. Rub the sandpaper cloth on the ends of the pipes until they shine brightly.

7. Connect the Electrical Wiring

Remove the junction box cover to access the electrical wires.

Attach the ground wire to the green ground screw. Connect the other wires together by twisting them with wire connectors. Use the previous wire connections as a guide and connect the wires in the same way you removed them. Follow your label tags, or the picture you took, from Step 3. Then replace the junction box cover.

8. Attach the Supply Lines & Turn On the Water

Connect the hot and cold water supply lines. Be sure to connect the cold water pipe to the cold water inlet on the water heater (it’s easy to make the mistake of connecting the cold to the hot). 

If your old water heater used copper piping, you may choose to plumb it with copper piping again. However, we highly recommend using flexible hoses to make the connections. Not only is it easier, but it’s a recommended safety feature for earthquakes. Your plumbing will vary depending on your orignial configuration and your preference.

Attach the flexible hoses to the nipples on the water heater. In most cases, you’ll need to line the threads with plumbers tape. We recommend using dielectric connectors to attach the flexible hoses to the hot and cold water pipes. These fittings will help reduce the corrosion between the two different metals.

Check the flexible hose connections for leaks by turning on the hot water tap at the nearest faucet. Then turn on the cold water supply to your water heater. This step is not covered in the video, but we recommend double-checking your plumbing before moving forward. If there are no leaks, continue to fill your water heater tank with water.

Once the tank is full, water will begin to flow out of the hot water tap.

9. Attach the T&P Discharge Pipe

Install the discharge pipe to the T&P valve. The end of the pipe needs to be within 6 inches of the floor.

  • Use a 3/4″ male copper fitting.
  • Paint pipe dope onto the outside of the fitting and the inside of the valve fitting.
  • Attach the fitting to the T&P valve fitting and tighten.
  • Clean the fitting the end of the pipe.
  • Paint soldering flux on the inside of the male fitting and the outside of the pipe.
  • Attach the pipe to the fitting.
  • Use solder and a torch to connect the pipe.

10. Turn On the Power & Bleed the Hot Water Lines

After your water heater tank has filled with water, turn on the circuit breaker at the main power box. CAUTION: Turning on the power before the tank has completely filled can cause the electric elements to dry fire if they are not fully submerged. This can ruin your electric heating elements.

If your water heater isn’t getting power, be sure to turn off the circuit breaker BEFORE checking the electrical connections on the water heater.

Fast Installations

If you’re not happy with your current hot water system, let us provide superior replacements that satisfy your needs. Our installations - available in gas, electric, and solar variants - are best suited for new and old residential units.

Fittings and Repairs

HWS Brisbane offers extensive repair services as well as gas fittings. Our experts fix your plumbing, resolve drainage problems, and realign gas fittings to complete all your repairs on time and with diligence.

System resolution

Get your hot water system checked by our experts. If your water isn’t getting appropriately heated or you’re always complaining about run-outs, it’s probably a system malfunction that requires immediate resolution.


Optimize the performance of your hot water system by hiring us for a specialist service. No matter which brand you won, a serviced heating system not only works better, but its longevity also increases.

We eliminate the stress of the cold in your home, we replace your water heater so you can enjoy that warm space you have always wanted.

Call us!  0411 474 971

Haz clic para copiar Haz clic para copiar Haz clic para copiar
Open chat