Almost every home in Victoria has a water heater system – but, did you know there are several types of water heaters you can choose from for your home? Our Kew-based plumber is here to help you distinguish between the different types so you can find the one that best suits your situation – so let’s dive right in.


Instantaneous water heaters (electrical and gas)

This type of heater works like an on-demand system. For electric heaters, a tap is turned on and then the water is immediately heated using electricity to deliver an instantaneous and continuous flow of hot water. This also means that only water you need is being heated instead of heating excess water unnecessarily. The power requirements can vary from single to three-phase and the number of outlets that will need to be heated should be considered as well.

Instantaneous gas systems work in a similar way except a gas burner is used to warm the water as it flows through a heat exchanger. The burner begins when it registers that a tap has been turned on and slows the water flow to allow the water to be appropriately heated. This, however, also means a lower water pressure when hot water is being used.


Storage water heaters (electrical and gas)

Unlike an instantaneous system, an electric storage water heater keeps water at a pre-set temperature (generally around 60-80°C) so it’s ready to be used whenever you require. The tank is insulated to ensure the water stays at the set temperature. Being that the water is constantly kept hot, there is some change in temperature through natural heat loss and also usage.

When you use the hot water, it is replaced by cold water which needs time to be heated up. This mixing of the newly introduced cold water and the remaining cold water can cause temperature fluctuations and of course, if you use all of the hot water at once then you’ll just have the cold water to draw from that hasn’t heated up yet.

Gas storage water heaters make up around 48 per cent of water heaters in Australia. The main burner (located below the tank) is ignited by a constantly burning pilot flame when necessary that heats the water. The hot water is drawn from the top of the tank and new cold water enters from below. You can manually set the temperature of your water heater so when the temperature drops below the predetermined amount, the main burner is ignited to ensure the water is constantly kept hot.


Solar water heaters

A highly sustainable energy method, solar heating your water is a great way to minimise your carbon footprint and your energy bill. Simply put, the sun’s energy is harnessed via solar panels and used to power a solar collector – which is a device that your cold water will travel through in order to heat up before returning to your water tank.

A split system pumps the water from your tank to the collector whereas a thermosiphon system flows naturally as it’s mounted on top of your roof – these can be thought of as active and passive solar systems respectively. Like a normal storage system, the hot water is taken from the top of the tank to be used and the cold water is taken from the bottom to be heated.


Heat pump water heaters

Though heat pump water heaters operate on electricity – they’re actually three times more efficient than traditional electric water heaters. So, what’s the difference? This heating system draws heat from the air and uses that to warm the water. They’re also incredibly eco-friendly and economical when used appropriately. Heat pump water heaters drive a liquid refrigerant through the system’s evaporator which moves the absorbed heat from the air into the water in the tank.


Are you looking for a plumber in Kew?

Picking the right water heater is an important task so you’re going to want to make sure you consult a professional plumber in Kew before making such a decision. JPG Plumbing’s experts can help you understand in further detail which system might be best for your home as well as install it and perform quality maintenance services down the track should they be necessary. Operating throughout Melbourne’s South Eastern suburbs, you’ll be pretty hard-pressed to find better and friendlier plumbers than ours.

If you’d like to chat with a JPG Kew-based plumber, then please don’t hesitate to give us a call on 0400 978 442 or fill out the contact sheet on our website.