Seeflame Gas

Electric hot water systems

Electric hot water systems are the most common type of hot water system in Australia, with two different types available: storage and instant. Storage options are generally more readily used than instant options, but this is slowly changing due to the range of benefits that the latter offers.

Both options electric hot water systems work in different ways to heat up water, however, meaning they use different processes to achieve the same hot water end result. Keep reading to find out more, or chat with the friendly Seeflame Plumbing team today.

How to know when your water heater needs replacing or requires a service?

How do I select a hot water system?

First you need to establish what kind of energy source is available to your property – Gas, Electricity or Solar, then decide which system is best for you.
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What are the different types of heating methods for hot water?

Electric, Solar, Heat Pump, Water Boilers

What kind of hot water systems are there?

Storage systems or continuous flow (known as instantaneous).

Storage Systems

Water is heated and stored in an insulated tank ready for use. Most gas, electric, solar and heat pump hot water systems use a tank.


Instant hot water heaters heat only the water required and because there is no storage tank (they are also known as tankless water heaters) so they do not experience heat/energy losses of storage systems. They operate on natural gas, LPG or electricity. Most models use gas, but electric models are available.
Hot water systems use a variety of heating methods to provide consistent hot water in your home, including gas, electric, solar or heat pump units. We also supply a range of water controllers, which enable you to select the exact temperature of your hot water at the touch of a button

How does an electric hot water system work?

Electric Storage Units

An electric storage hot water system works by sending cold water into a storage tank, where one or two elements are located to heat the water. Once the water is at the correct temperature, it rises to the top and travels to the relevant hot tap when it is needed. Because the heating of the water occurs inside the tank, there isn’t a need for a flue (like a gas storage hot water system).

A thermostat is used to control and maintain the temperature to which the water is heated, which is above 60°C to avoid the growth of Legionella bacteria. If the water pressure gets too high, water will be pushed out through the pressure relief valve and flow through the overflow pipe.

Seeflame Gas

Ask us how Solar Hot Water can benefit you. Call Seeflame on 0433 519 202.