



An electric storage system is the most common type of hot water system. It works by sending cold water into the tank, which is then heated by an element (or two elements, depending on the size of the tank). A thermostat controls the temperature of the water, which has to be above 60ºC so Legionella bacteria can’t grow. These units are available in a range of sizes to suit your needs and are ideal for big or small households.

Continuous flow systems are usually powered by gas, but electric models are available. An instantaneous hot water system heats only as much water as you need. Since no water is stored in an instantaneous system, there is no heat loss from a tank, nor is there a need to keep stored water at a consistent hot temperature. Electric instantaneous water heaters are compact and usually come with remotes for optimal temperature control.

A heat pump hot water system uses a storage tank and is a kind of solar powered unit without solar panels. It extracts heat from the ambient air and uses a heat exchanger unit to heat water in a storage cylinder. A heat pump system uses electricity to power the evaporator fan and compressor.
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