The Ariston Andris Lux 30L Oversink 3kW Water Heater must be fitted by law with packs A and B as per below, also with Kit C which is included in the box with the water heater. If you require more than 1 water heater, please also make sure to add additional Kits A and B to match. The Andris Lux small unvented electric water heater is the UK’s market leader within its category. Renowned for outstanding levels of safety and durability, these compact units are perfect for domestic and light commercial applications where space is at a premium. Available in a wide range of over and undersink models and capacities of 6, 10, 15 and 30 litres, these products remain the industry’s water heaters of choice – and the UK’s number one. Ariston Andris Lux 30L Oversink 3kW Water Heater c/w Kit A,B & C