Ariston Andris Lux 10L Oversink Unvented Water Heater 3kW – 3100302

The Ariston Andris Lux 10L Oversink Unvented Water Heater 3100302 provides convenient stored hot water close to a sink or basin. Its compact design makes it a practical choice for kitchens, utility rooms, offices, workshops, garages and other locations with limited space.

A powerful 3kW heating element heats the 10-litre tank in approximately 12 minutes. Therefore, users can access a small supply of hot water without waiting for hot water to travel through long pipe runs from a central cylinder or boiler.

The Andris Lux combines Italian styling with simple mechanical controls. In addition, its titanium-enamelled tank, four-bolt flange and effective insulation support reliable operation and long-term durability.

This model fits above the sink with its water connections positioned underneath. Therefore, check that you need an oversink water heater before ordering.

Product Guides and Further Information

• Download the Ariston Andris Lux installation and user manual
• View the Ariston Andris Lux product range
• View Ariston warranty and registration information

Ariston Andris Lux 10L Oversink Water Heater Features

• Compact unvented electric storage water heater
• Manufacturer model number: 3100302
• 10-litre stored water capacity
• Designed for oversink installation
• Powerful 3kW heating element
• Approximate heat-up time of 12 minutes
• Simple external mechanical temperature control
• Energy-saving setting on the control dial
• Heating indicator shows when the element operates
• Titanium-enamelled tank for added protection
• Strong four-bolt flange construction
• Compact Italian design
• ERP energy rating: A
• Expansion relief valve supplied
• Suitable for domestic and light commercial applications
• Three-year tank warranty, subject to Ariston’s terms
• One-year electrical-parts warranty, subject to Ariston’s terms

Technical Specification

• Manufacturer: Ariston
• Range: Andris Lux
• Model: 3100302
• Product type: Unvented electric storage water heater
• Installation position: Oversink
• Capacity: 10 litres
• Element rating: 3kW
• Electrical supply: 240V
• Approximate heat-up time: 12 minutes
• ERP energy rating: A
• Tapping profile: XXS
• Heat loss at 65°C: Approximately 0.46kWh per day
• Maximum working pressure: 6 bar
• Empty weight: Approximately 6.7kg
• Control type: External mechanical dial
• Heating indicator: Yes
• Expansion relief valve: Supplied

Water Heater Dimensions

• Height: 385mm
• Width: 360mm
• Depth: 298mm

Before ordering, measure the installation area and allow enough room for the pipework, safety controls and future servicing. Also, confirm that the wall can support the heater when it contains water.

What Comes with the Water Heater?

• 1 x Ariston Andris Lux 10L oversink water heater
• 1 x expansion relief valve
• Installation and user information

The installer may need additional controls, valves, pipework or an Ariston installation kit. The exact requirements depend on the incoming water pressure, pipe arrangement and available expansion within the system.

Where Can You Use the Ariston Andris Lux 10L?

The Ariston Andris Lux 10L provides local hot water where demand remains relatively low. Consequently, it can reduce the delay and water waste caused by long pipe runs from a central hot water source.

• Domestic kitchens and utility rooms
• Office kitchens and staff rooms
• Workshops and garages
• Loft conversions and annexes
• Shops and small commercial premises
• Handwashing basins
• Locations far from the main hot water system

This 10-litre model works best for light, point-of-use hot water demand. However, it may not suit baths, showers or applications that need large volumes of hot water.

Oversink or Undersink Water Heater?

This model is an oversink water heater, so the installer mounts it above the outlet with the connections underneath. In contrast, an undersink model sits below the outlet and uses a different connection layout.

Therefore, oversink and undersink models are not automatically interchangeable. Check the planned mounting position and pipe connections with your installer before ordering.

Benefits of a Small Unvented Water Heater

An unvented point-of-use heater connects to the mains water supply and stores a small amount of heated water. As a result, it can deliver hot water conveniently without a separate cold water cistern.

In addition, local installation can shorten the distance between the heater and outlet. This arrangement may reduce waiting time and the amount of cold water that runs away before hot water reaches the tap.

Fast 3kW Water Heating

The 3kW element heats the stored water more quickly than lower-powered versions. Ariston states an approximate heat-up time of 12 minutes for this model under its test conditions.

However, the actual recovery time can vary with the incoming water temperature, thermostat setting and electrical supply. The installer must also confirm that the electrical circuit can safely support the 3kW load.

Why Choose the Ariston Andris Lux?

The Andris Lux range combines compact dimensions, straightforward controls and efficient point-of-use water heating. Therefore, it offers a practical solution where space remains limited or the main hot water source sits far from the outlet.

First, the titanium-enamelled tank helps protect the internal vessel. Next, the mechanical control makes temperature adjustment simple. Finally, the A energy rating and effective insulation help support efficient everyday operation.

Why Buy from SNH Tradecentre?

• Competitive prices: We aim to offer excellent value across the Ariston water heater range.
• Helpful advice: Our team can help you compare oversink, undersink and different-capacity models.
• Genuine Ariston products: Buy from an established plumbing and heating merchant.
• Clear information: We provide useful specifications and installation documents.
• Trade and public welcome: We supply homeowners, landlords, plumbers and professional installers.
• UK-based support: Contact our team if you need help before ordering.
• Independent merchant: SNH Tradecentre operates from Birchington, Kent.

Need Help Choosing?

Not sure whether you need an oversink or undersink heater? Call the SNH Tradecentre team on 01843 842727. We can help you compare the available models before you order.

Read Reviews from SNH Tradecentre Customers

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Installation Requirements

A competent installer must fit and commission this unvented water heater. The installation must follow current electrical, water and Building Regulations together with the latest Ariston instructions.

The installer must check the incoming water pressure and confirm whether the system needs additional controls or an installation kit. They must also provide a safe discharge route for the expansion relief valve.

Furthermore, a qualified electrician should confirm the electrical circuit, isolation and protective devices required for the 3kW element. Do not connect the heater to the electricity supply until the tank is full of water.

Warranty Information

Ariston provides a three-year warranty on the tank and a one-year warranty on electrical components, subject to its current terms. Ariston may require product registration within 30 days of commissioning and regular professional servicing or inspection.

Keep the purchase receipt, installation details and service records. In addition, register the product with Ariston after installation to help protect the manufacturer’s warranty.

Frequently Asked Questions

Is model 3100302 an oversink or undersink heater?

Model 3100302 is an oversink water heater. Therefore, it mounts above the sink or basin with its water connections positioned underneath.

How much water does the Ariston Andris Lux store?

This model stores 10 litres of hot water. It suits light point-of-use demand rather than showers, baths or applications that need large quantities of hot water.

How powerful is the heating element?

The heater contains a 3kW element. Therefore, the installer must confirm that the electrical circuit and protective devices suit the appliance.

How quickly does it heat the water?

Ariston lists an approximate heat-up time of 12 minutes under its test conditions. However, the actual time depends on the incoming water temperature, thermostat setting and electrical supply.

What energy rating does the heater have?

The Ariston Andris Lux 10L 3kW oversink model has an A energy rating and an XXS tapping profile.

Does it include an expansion relief valve?

Yes. Ariston supplies an expansion relief valve with the heater. However, the installation may require additional controls or a suitable installation kit.

Can I install it myself?

A competent professional should install and commission the heater. The work must comply with current water, electrical and Building Regulations as well as Ariston’s latest instructions.

Can it supply a shower?

This compact 10-litre heater primarily suits sinks, basins and light point-of-use demand. It does not normally provide enough stored hot water for a standard shower or bath.

What warranty does the Andris Lux include?

Ariston provides a three-year tank warranty and a one-year electrical-parts warranty, subject to registration, servicing and its current terms and conditions.

Order the Ariston Andris Lux 10L Oversink Heater

Choose the Ariston Andris Lux 10L Oversink Unvented Water Heater 3100302 for compact point-of-use hot water, fast 3kW heating and straightforward mechanical controls.

Before ordering, ask your installer to confirm the mounting position, water pressure, electrical supply and installation-kit requirements. Then, contact SNH Tradecentre if you need help choosing the correct model.

Ariston may update specifications, packaging and supplied components without notice. Therefore, check the latest manufacturer literature before ordering or installing this water heater.