Enjoy fast hot water on demand with the Ariston Andris Lux electric storage water heater, supplied as a 15L undersink unit with an upgraded 3kW heating element. Designed to fit neatly beneath sinks in kitchens and bathrooms, this compact unvented unit delivers rapid heating performance where space is limited.

A straightforward mechanical dial on the front allows for simple and intuitive temperature control. Powered by the 3kW element, it achieves extremely fast reheat times to replenish hot water quickly throughout the day.

Built for longevity, it features a titanium enamelled tank, a robust 4-bolt flange, and a nickel-free copper heating element that actively resists corrosion.

• 15L undersink heater – compact unvented storage unit with 3kW element
• Rapid reheat – upgraded element speeds up hot water replenishment
• Mechanical dial – simple and intuitive control to set water temperature
• Titanium enamelled tank – durable construction ensures lasting reliability
• Copper heating element – nickel-free design reduces corrosion risk
• Easy 10-step installation – clear setup process for fast mounting
• Available in various sizes – including 6L, 10L, 15L, and 30L models

Delivery (UK mainland only)

 

Next Day: £5, or FREE over £40

- Order by 9pm Mon-Thu: next working day

- Order Fri to 5pm Sun: Monday

- Order after 5pm Sun: Tuesday

 

Pre-12pm: £10

- Same cut-offs as Next Day above

 

Saturday & Sunday: £10, or £5 over £40, or FREE over £75

- Saturday: order by 6pm Fri

- Sunday: order by 4pm Sat

 

Heavy items (over 30kg)

- Mon-Fri only. Order by 6pm and allow up to two working days

- Order after 6pm Thu: arrives after the weekend

 

Supplier items

- Sent directly by the supplier, so timings vary. Lead times appear on the product page in working days (Mon-Fri)

 

More about delivery 

Next Business Day Collection (eligible items)

- Order by 9pm Mon-Thu: collect next day

- Order after 9pm Thu to 5pm Sun: collect Monday

- Heavy items (over 30kg): allow up to two working days

 

Opening hours

- Weekdays vary by branch: open 6:30am-7am, close 6pm-8pm

- Saturday: 7am-6pm

- Sunday: 9am-4pm

 

Check your local store's hours and that it's open before visiting. Please wait for our text or email before collecting.

 

Holding your order
We'll hold it for 14 days, then automatically refund your original payment method.