Hot Water Systems in Canberra

There are four main types of hot water systems available in Australia: electric storage, gas storage, continuous flow (also called instantaneous), and solar. Electric storage systems heat and store water in a tank, while gas storage systems work similarly but use natural gas or LPG. Continuous flow systems heat water on demand rather than storing it, which can be more energy-efficient for smaller households. Solar hot water systems use roof-mounted collectors to heat water using energy from the sun, often with a gas or electric booster for overcast days. Heat pump systems are also becoming increasingly popular as an energy-efficient alternative to traditional electric storage units.

The age of your system is often the best indicator — most hot water systems have a lifespan of around 8 to 12 years for storage units, and up to 20 years for continuous flow systems with proper maintenance. Signs that your system may need attention include inconsistent water temperatures, discoloured or rusty water, unusual noises such as popping or rumbling, water pooling around the base of the unit, or a noticeable drop in hot water pressure. Minor issues like a faulty thermostat or a worn sacrificial anode can often be repaired, but if the system is ageing and requiring frequent attention, replacement is usually the more cost-effective long-term solution.

Continuous flow systems heat water on demand, meaning you're not paying to keep a full tank of water hot around the clock. This can result in meaningful energy savings, particularly for smaller households or homes where hot water usage is spread throughout the day. They also take up less space than a storage tank and generally have a longer lifespan. However, they may not suit very large households with simultaneous high-demand usage, and the upfront installation cost can be higher than a standard storage system. A licensed plumber can assess your household's usage patterns and recommend whether a continuous flow system is the right fit.

First, check whether the issue is isolated to one tap or affecting your whole property, as this can help identify whether it's a plumbing issue or a problem with the system itself. For electric systems, check your switchboard to see if a circuit breaker has tripped. For gas systems, check that the gas supply is on and the pilot light hasn't gone out. If the system is leaking, turn off the water supply to the unit and call a licensed plumber promptly. Avoid attempting to repair the unit yourself — hot water systems operate under pressure and involve either electrical or gas components, both of which require a licensed tradesperson to work on safely.