Ariston offer 3 Water Heater ranges, they are the Europrisma, Eureka and Piccolo.

The Europrisma unvented water heater range is available as either over-sink or under-sink units in capacities of 10 and 15 litres and there is an over-sink 30 litre version. Both the over-sink and under-sink models are for unvented single or multiple outlet installation. The Europrisma range is available in 2kW (under-sink only) and 3kW versions.

The Piccolo has a capacity of 5 litres whilst the Eureka has a capacity of 13 litres.