10 Best Hand Wash Water Heaters Over Sink in The UK

Last updated on 14/09/2025

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Best Choice

9.9

Exceptional

Heatrae Sadia

Heatrae Sadia Streamline Over Sink Water Heater & Spout - 7

Ariston Andris Elite WiFi 10l Water Heater Over Sink 4012003 2.5kw White for Sink hot Water heaters

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Why We Love It

Smart control via WiFi.
Safety with anti-legionella function.
Energy saving with Eco Evo.

Main Highlights

WiFi compatibility for smart control; ideal for those looking for an electric water heater or a hot water heater with advanced remote management for everyday use and energy saving
Anti-legionella function for total peace of mind; this feature makes the ariston water heater safe and reliable
Eco Evo and Boost functions for energy saving and maximum availability of hot water; suitable for small spaces that require a water heater for sink
Electronic temperature regulation for precise control; ideal for customising your hot water heater in the kitchen, bathroom or utility room
Soft touch buttons for intuitive use; they improve the user experience and make it easier to manage your electric water heater in a practical way.

Briwellna Electric Instantaneous Tankless Water Heater 5.5kW 220V, Instant Hot Water Heater with Digital Display for Kitchen Bathroom Sink Counter Under/Above Home Indoor (White)

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Why We Love It

Unlimited hot water on-demand.
Efficient, space-saving design.
Ensures multiple security protections.

Main Highlights

[On-demand, Umlimited Hot Water] Briwellna Non-Thermostatic Tankless Electric Water Heater is ideal for a single sensor faucet or a single metering faucet for handwashing and other fixed-flow applications.
[Compact Size Fits Almost Anywhere] This water heater is designed specifically with replacements in mind. The smaller dimensions (210mm×172mm×73mm)makes it easier to swap out your existing less-efficient water heater.
[Flexible Installation in Any Orientation] The product can be installed at any angle and the display will be automatically adjusted when the product is installed upside down.
[Save Energy and Time] Equipped with the latest integral cast aluminum heating technology, this water heater produces instant hot water without storing water, preheating devices or an attemperator, saving power consumption, water, time and space. It can be shut off by turning off water or power supply
[Multiple Security Protection] Smart protection functions protect the product from leakage, over-temperature, dry heating and over-pressure. We offer one-year warranty.
[Easy Installation] Coming with multi-language user's manual, it's easy to install the faucet without plumbers. Video of installation guadiance is available. It can be installed above or under the sink. Please make sure the water pressure required(0.04-0.8MPa) and your breaker panel to dedicate 25A(5500W) double pole breakers solely to the unit. The water connector size is 1/2". Fits both old style 1/2" hose connector and 3/8" water supply system(with adapters).

Instant Electric Tankless Water Heater 220/240V, FVSTR Small Smart Portable Self-Modulating on Demand Use Under Sink Kitchen Household Shower, Hot Water for House Shower [Energy Class A] (7.5KW)

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Why We Love It

Instant and sufficient hot water.
Convenient digital display control.
Compact and versatile positioning.

Main Highlights

【Installation Note】that the approval of the relevant distribution network operator (DNO) is required for installation and that the installation of the products may only be carried out by the distribution network operator itself or by an installation company entered in the operator's list of installers.
【REMOTE CONTROL】 The tankless water heater comes with digital display & touch control panel so temp setting is easy job. Now turn on the tap and let the smart unit do the rest, you needn’t go through hard lesson about temp setting by a mixer tap without any hint. The model comes with Remote control, useful for installation under sink.
【SMART SELF ADJUSTMENT】 The hot water heater adjusts power input based on flow rate and temp setting in real time. For example, less power will be applied by the system when waterflow reduced, thus you still get ideal temperature instead of scalding hot water, which means comfortable experience. Optimal energy efficiency of 98% saves considerable electric charge.
【SAFE and DURABLE】 Applied with multiple protection devices, every piece goes through strict tests to ensure 100% safe. Inner water and electricity lines are designed to run separately so as to avoid leakage or harm of scale build up. Approval by ETL and qualifies for UL, you can expect outstanding performance for years to come..POINT of USE The sleek tankless water heater is compact as an oatmeal box, making it possible to install anywhere close to outlet and avoid energy waste
【Simple Installation】1/2-Inch Water heater connector. In order to install whole house tankless water heater electric 7.5KW 240V it requires 240 Voltage, 2 x Double-POLE 30AMP, wire gauge 2 x 8AWG, please check to confirm that your breaker panel meet these specifications. 2-year limite warranty and 24/7 customer support services
【Installation Note】that the approval of the relevant distribution network operator (DNO) is required for installation and that the installation of the products may only be carried out by the distribution network operator itself or by an installation company entered in the operator's list of installers.
【INSTANT HOT WATER HEATER 】- Applied with 7500W/11000W heating system, the electric tankless water heater supplies instant hot water, 3 seconds to get hot water without preheating. Instant consistent and endless hot water of the maximum temperature reach to 55℃/131℉. It is perfect companion for sinks, bringing you perfect experience of comfort and relaxing
【Installation Note】that the approval of the relevant distribution network operator (DNO) is required for installation and that the installation of the products may only be carried out by the distribution network operator itself or by an installation company entered in the operator's list of installers.

STIEBEL ELTRON Small vented Electric Water Heater SNO 5 Plus (GB), Water Heater Over Sink 5 l, Very Compact, 2 kW, White, 204979

Why We Love It

Effortless installation and replacement.
Award-winning temperature control features.
Notable energy-saving capabilities.

Main Highlights

APPLICATION: Vented (Non-pressurized) small electric water heater for the washbasin in the bathroom or the sink in the kitchen.
COMFORT FEATURES: Infinitely variable temperature setting via high-quality rotary selector with tactile detent. Award: reddot winner 2023.
ENERGY-SAVING WONDER: The most compact of its kind with the lowest power consumption.
SAFETY: Integrated anti-scalding protection. 4-stage temperature limiter.
INSTALLATION: Vented (Non-pressurised) installation only. Vertical over sink installation only. Simple wall mounting thanks to universal mounting strip. Easy replacement of previous models.
SCOPE OF DELIVERY: STIEBEL ELTRON small storage tank SNO 5 Plus (GB), with opella tap and outlet spout operating and installation instructions, wall bracket.

ATC Under Sink Water Heaters (10 Litre (New Model))

7% OffFree Shipping

Why We Love It

Provides consistent hot water.
Space-saving under sink model.
New, reliable ATC design.

Main Highlights

ATC Under Sink Water Heaters 10 Litre New Model
Brand : ATC
Product type: WATER HEATER
Red
water

ThermoMate ELEX5.5 Instantaneous Electric Water Heater with LED Display, 5.5kW Hand Wash Water Heater for Basins Sinks, Over/Under Sink Water Heaters, ‎Hard Wire 220V

15% OffFree Shipping

Why We Love It

Instant heating, endless hot water.
Advanced flow control feature.
Convenient temperature control display.

Main Highlights

【2S INSTANT HEATING & ENDLESS HOT WATER】- Turn on the water tap and endless hot water will come out within 2 seconds on demands when require, hence you will never run out of hot water and only pay for what you really use. Savings of up to 50% on water heating costs.
【EXCLUSIVE ADVANCED FLOW CONTROL & WATER LEAKAGE PREVENTION】- Unique technology is applied to improve water flow and prevent any water from splashing or dripping. You can adjust the flow rate you want to meet your needs in any time. Maximum hot water flow rate: 3L/min
【FLEXIBLE INSTALLATION】- When inverting the installation, the numbers automatically flip over. When the electric washbasin is in operation, the LED displays the current water temperature in real time, so you can easily get hot water at the desired temperature. The temperature range of 35 to 55°C can be selected by touch control.
【EXCEPTIONALLY DURATION】- Built in high quality alloy bare heating element, it is corrosion-resistant and acid-resistant; flowing water prevents limescale from building up, which prolongs its service lifespan.
【TWO INSTALLATION APPLICATIONS OPTIONAL】- Functional for both over sink and under sink installation, display will reverse automatically. Act as primary heater, with water being injected from cold mains directly; Act as booster heater, with hot water being injected from a storage tank. It is free to connect to a mixer tap.Water Inlet and outlet sizes G1/2‘’

3 kW Instant Electric Hand Wash Water Heater Oversink HW30M 240V Hyco Instantaneous

Why We Love It

Instant hot water availability.
Sleek silver finish.
Compact and efficient.

Main Highlights

3 Kw Instant Electric Hand Wash Water Heater Oversink Hw30M 240V Hyco Instantaneous
Brand : Hyco
Product Type : Water Heater
Color: Size: Silver

Water Heater Oversink 5 Litre Tank Handy Flow Hyco HF05LQ

Bellanny Mini Electric Water Heater, 1.5KW 220V Electric Instantaneous Water Tap with 10L Water Tank, IP4X Waterproof Under Sink Water Heater with LCD Digital Display & Temperature Knob, UK Plug

13% Off

Why We Love It

Heats water incredibly fast.
Provides hot water instantly.
Durable stainless steel construction.

Main Highlights

【Fast Heating】 This instant water heater adopts advanced instantaneous heating technology, which heats up quickly and greatly saves time waiting for hot water. The single-piece compact insulation design not only reduces energy consumption, but also ensures a continuous supply of hot water. Whether you are washing up in the morning or bathing in the evening, you can turn on the water immediately and enjoy a comfortable living experience.
【On-Demand Water Supply】 This compact water heater eliminates the long wait for hot water at the sink, allowing you to get hot water on demand whenever you need it. Whether you're washing your hands, face or dishes, it's ready to use, providing convenience and comfort. Whether you are a domestic user or a commercial establishment, this water heater is the ideal choice for you.
【Quality Material】This under sink water heater is made of stainless steel tubes with excellent anti-pollution ability, which can adapt to a variety of complex water quality environments. Whether it is hard water or soft water, it can ensure the long-term stable operation of the water heater and extend its service life. High-quality material selection, so you can use it with confidence and peace of mind.
【Safety & Reliability】 This water heater adopts a one-piece moulding design, effectively preventing erosion in bathroom and kitchen environments. Over-pressure protection function: when the pressure in the liner exceeds the safety rated pressure, the safety relief valve will automatically release the pressure. Dry burn prevention function: when the liner dries out, the secondary insulation protection will immediately cut off the power supply and automatically stop working.
【Flexible Installation】 Compact in size, this small electric water heater can be easily placed in the kitchen, lounge, bathroom or anywhere else you need it. The exquisite design not only saves space, but also blends into various home environments and enhances the overall aesthetics. Whether it is wall-mounted or vertical installation, it can meet your personalised needs and make life more convenient.

8.8

Excellent

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We scanned 1761 products

We reviewed these offers relevant to the Hand Wash Water Heaters Over Sink within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Heatrae Sadia, Ariston, Briwellna, FVSTR, Stiebel Eltron, ATC, thermomate, Hyco, Bellanny, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Hand Wash Water Heaters Over Sink in the market, we considered we took a deep dive into 8806 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is Heatrae Sadia Streamline Over Sink Water Heater & Spout - 7. We love many things about this product by Heatrae Sadia.
The best value product for most shoppers and where user satisfaction is continuously the highest is Ariston Andris Elite WiFi 10l Water Heater Over Sink 4012003 2.5kw White for Sink hot Water heaters by Ariston based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Hand Wash Water Heaters Over Sink and the best cost-to-value ratio is ThermoMate ELEX5.5 Instantaneous Electric Water Heater with LED Display, 5.5kW Hand Wash Water Heater for Basins Sinks, Over/Under Sink Water Heaters, ‎Hard Wire 220Vat thermomate with a 15% discount.
Our list of the best Hand Wash Water Heaters Over Sink is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Hand Wash Water Heaters Over Sink in The UK

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We scanned 1761 products

We concluded that: