---
product_id: 321206285
title: "Ariston ANDRIS R 15 Litre Undersink Electric Water Heater 2kW, Control Unit, B class ErP rating, Economy “E” Setting, Manufactured to be installed in UK - 3100864"
brand: "ariston"
price: "€ 443.72"
currency: EUR
in_stock: true
reviews_count: 9
category: "Ariston"
url: https://www.desertcart.gr/products/321206285-ariston-andris-r-15-litre-undersink-electric-water-heater-2kw
store_origin: GR
region: Greece
---

# 2kW fast heating power Economy 'E' energy-saving mode Titanium enamelled corrosion shield Ariston ANDRIS R 15 Litre Undersink Electric Water Heater 2kW, Control Unit, B class ErP rating, Economy “E” Setting, Manufactured to be installed in UK - 3100864

**Brand:** ariston
**Price:** € 443.72
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay ahead with hot water that’s fast, efficient, and built to last!

## Quick Answers

- **What is this?** Ariston ANDRIS R 15 Litre Undersink Electric Water Heater 2kW, Control Unit, B class ErP rating, Economy “E” Setting, Manufactured to be installed in UK - 3100864 by ariston
- **How much does it cost?** € 443.72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/321206285-ariston-andris-r-15-litre-undersink-electric-water-heater-2kw)

## Best For

- ariston enthusiasts

## Why This Product

- Trusted ariston brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Economy Setting:** Optimize energy use without sacrificing comfort—save on bills effortlessly.
- • **Superior Heat Retention:** Thick polyurethane insulation locks in warmth, reducing heat loss and boosting efficiency.
- • **Titanium-Enamelled Tank:** Unmatched corrosion resistance for long-lasting durability and peace of mind.
- • **Power-Packed 2kW Heating:** Rapidly delivers hot water on demand, perfect for busy mornings.
- • **Precision Temperature Control:** Immersion thermostat lets you dial in your perfect water temperature every time.

## Overview

The Ariston ANDRIS R 15 Litre Undersink Electric Water Heater combines a powerful 2kW heating element with a titanium-enamelled tank for superior corrosion resistance. Designed for UK installation, it features an energy-efficient 'Economy E' mode and precise temperature control via an immersion thermostat. Its thick polyurethane insulation ensures excellent heat retention, delivering reliable hot water while optimizing energy use.

## Description

Shop Ariston ANDRIS R 15 Litre Undersink Electric Water Heater 2kW, Control Unit, B class ErP rating, Economy “E” Setting, Manufactured to be installed in UK - 3100864. Free delivery on eligible orders of £20 or more.

Review: water heater - very good one
Review: Great little water heater. - We bought this for a detached annexe and it does the job perfectly. Plenty of very hot water for the kitchen and bathroom sinks. Fits nicely under the kitchen sink too.

## Features

- Water heater designed and manufactured to be installed in UK
- “B” class ErP rating
- Economy' setting on the dial to optimise comfort and energy saving
- Titanium enamelled tank for durability: This premium quality water heater the best tank protection with the properties of titanium, wich constitutes a perfect shield against corrosion. Every single component is developed to ensure longlasting high performance with the guarantee of Ariston Brand.
- Maximum Comfort: Andris series products are able to keep the water hot for a long time thanks to the thick high-density polyurethane insulation placed in the tank and the outside of the water heater. It provides an effective barrier against heat losses, optimizing both the performance of the product and the users’ comfort. The models of the Andris series are equipped with an immersion thermostat, which allows a very precise adjustment of the water temperature, heating it to the desired point.
- Installation kits to be purchased separately

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Ariston |
| Model Number | 3100864 |
| Colour | Black |
| Product Dimensions | 34.6 x 34.6 x 38.5 cm; 8.14 kg |
| Power / Wattage | 2 KW |
| Energy Efficiency Class | A to G |
| Special Features | Fast Heating |
| Item Weight | 8.14 kg |

## Product Details

- **Brand:** Ariston
- **Product dimensions:** 34.6W x 38.5H centimetres
- **Special feature:** Fast Heating
- **Colour:** Black
- **Wattage:** 2 KW

## Images

![Ariston ANDRIS R 15 Litre Undersink Electric Water Heater 2kW, Control Unit, B class ErP rating, Economy “E” Setting, Manufactured to be installed in UK - 3100864 - Image 1](https://m.media-amazon.com/images/I/61Hzx-cGE8L.jpg)

## Questions & Answers

**Q: Could i use a timer to have the unit come on  and be ready for when i want it**
A: Dear Customer,

Thanks for your question. A timer cannot be used as the unit is designed to have a constant power supply.

At your disposal for further clarification.

Thank you.
Regards.

**Q: Can I set this product to heat up on a lower power - more slowly. 1kw or so would be ideal.**
A: Good Morning,

Thank you for your question. 

The regulation options on this product allow you to set a lower temperature, not a slower heating up. The front dial on this product allows you to choose the water temperature inside the tank. The ‘E’ economy setting marked on the dial would get you a temperature of about 55-60 °C. You can set the temperature lower than that if you prefer.

Kind Regards.

**Q: Is it insulater , how long would the water stay hot , would it keep topping the heat up**
A: Dear Customer,

Thank you for your question. The unit has a thermostatic control which keeps the water inside the cylinder at a set temperature and has an Insulation wrapped around the cylinder between it and the outer plastic shroud.

At your disposal for further clarification.

Thank you.
Regards.

**Q: Can this product be used with a water softener**
A: Dear Customer,

This is Not recommended, because of the different water PH, but still can be used with artificially softened water.
It needs to be serviced every 12 months and the sacrificial anode needs to be checked and replaced if necessary.

At your disposal for further doubts.

Thanks,
Regards.

## Customer Reviews

### ⭐⭐⭐⭐⭐ water heater
*by C***. on 11 December 2025*

very good one

### ⭐⭐⭐⭐⭐ Great little water heater.
*by A***R on 3 June 2023*

We bought this for a detached annexe and it does the job perfectly. Plenty of very hot water for the kitchen and bathroom sinks. Fits nicely under the kitchen sink too.

### ⭐⭐⭐⭐ Good value but requires a professional electrician/plumber to install
*by N***I on 12 March 2023*

Small and suitable for under sink installation. Provides controllable warm water supply.

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-01-22*