Best Under Sink Water Heaters Electric of 2025
Last updated on 16/09/2025
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Best Choice
1
Ariston ANDRIS LUX ECO 15 L Undersink Electric Water Heater 2.5kW with A Titanium Enamelled Tank, A Class Erp Rating, Copper Heating Element, Manufactured To Be Installed In UK - 3100722, White
Ariston
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Ariston
Ariston ANDRIS LUX ECO 15 L Undersink Electric Water Heater 2.5kW with A Titanium Enamelled Tank, A Class Erp Rating, Copper Heating Element, Manufactured To Be Installed In UK - 3100722, White
5% OffFree Shipping
Why we love it
- Energy efficiency rated 'A'.
- Eco Evo function saves money.
- Anti-legionella for safety.
Main Highlights
- Water heater designed and manufactured to be installed in UK
- First in Class ErP rating “A” across all models: With its electronic temperature control and its Eco Evo Function, the Andris Lux Eco is an energy efficient electric water heater boasting an “A” ErP energy rating across the whole range
- “Eco Evo” function: Thanks to the ECO EVO function, Andris Lux Eco remembers when and how much hot water you use. In this way the function will not only provide hot water efficiently, buti t will also and above all saving up to 15 Percentage on your energy bill
- Anti-legionella function for total peace of mind: Once a month, this mini-tank electric water heater automatically increases the water temperature up to 65°C, in order to eliminate the risk of legionella bacteria developing. Ideal for applications such as hospitals, schools and care homes
- Eco Display: The unit’s smart, user-friendly display is easy to use and provides precise electronic temperature control, allowing the user to set the desired temperature for every need. The button “ECO” indicates when the Eco Evo Mode is activated and the LED indicator provides a visual guide to the water temperature inside the tank. In yhis way, you can have the hot water you need, when you need it, without any effort
- Titanium Enamelled TankEnhanced Anti-Corrosion: With its proprietary titanium tank engineering, the Andris Lux Eco boasts exceptional durability and an extended product life. In addition, with its robust 4 bolt flange and copper heating element, this efficient water heater offers improved protection against water corrosion
- Ideal Installations: Medical Environments Laboratories School Facilities
- Fully UKCA certified to be installed in the UK Market
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Value for Money
2
Ariston Andris Elite WiFi 15l Water Heater Under Sink 4012006 2.5kw White for Sink hot Water heaters
Ariston
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Ariston
Ariston Andris Elite WiFi 15l Water Heater Under Sink 4012006 2.5kw White for Sink hot Water heaters
Free Shipping
Why we love it
- Smart control via WiFi.
- Safe and reliable operation.
- Energy-saving Eco functions.
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.
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3
Ariston Andris Elite WiFi 10l Water Heater Under Sink 4012004 2.5kw White for Sink hot Water heaters
Ariston
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Ariston
Ariston Andris Elite WiFi 10l Water Heater Under Sink 4012004 2.5kw White for Sink hot Water heaters
Free Shipping
Why we love it
- Smart control via WiFi.
- Safe and reliable heating.
- Energy saving features included.
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.
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4
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)
Briwellna
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Briwellna
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).
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5
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
thermomate
15% OffFree Shipping
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thermomate
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‘’
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6
Ariston Water Heater Andris Lux Undersink 10L 2kW Electric Storage
Ariston
5% Off
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Ariston
Ariston Water Heater Andris Lux Undersink 10L 2kW Electric Storage
5% Off
Why we love it
- Effortless operation with mechanical dial.
- Copper element ensures rapid heating.
- Guaranteed quality and fast reheating.
Main Highlights
- Fast Reheat Times for instant hot water: ensures quick and efficient heating to meet daily needs
- Modern, cutting-edge and stylish design: complements any space while maximizing functionality
- Easy to operate with mechanical dial: simple and intuitive temperature control
- Installation in 10 easy steps: hassle-free setup with clear instructions for quick installation
- Titanium enamelled tank and 4-bolt flange for robustness and durability: copper heating element (nickel free) for reliable performance and longevity
- Copper heating element (nickel free) for efficient heating: ensures long-lasting performance and reduces the risk of corrosion
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7
VELPAX Mini Electric Water Heater, 10L Electric Instantaneous Water Heate,1500W 220V,Waterproof Under Sink Water Heater with Digital Display for RV Kitchen Bathroom
VELPAX
20% OffFree Shipping
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VELPAX
VELPAX Mini Electric Water Heater, 10L Electric Instantaneous Water Heate,1500W 220V,Waterproof Under Sink Water Heater with Digital Display for RV Kitchen Bathroom
20% OffFree Shipping
Why we love it
- Instant hot water, no waiting.
- Durable construction, long-lasting use.
- User-friendly, easy installation process.
Main Highlights
- 【Electric Mini Tank Water Heater】- The Electric Mini Tank Water Heater,1500-watt heating system delivers instant hot water in seconds without preheating,with more safety protection such as anti-freezing protection,over heating protection, 10L of hot water can be output per minute. The maximum temperature raise is 158 °F.
- 【Durable and Long Service】- The internal materials of instant hot water heater electric 220v are made of high-temperature calcined layer and enamel layer, which have corrosion resistance, rust prevention,and anti-corrosion properties.Stainless steel heating tubes and built-in magnesium rods can effectively purify water quality and extend service life.Integrated stainless steel tank body and Polyurethane CFC-free filling layer ensure the stability of the tank body and excellent insulation.
- 【Super High Efficiency】- Small Hot Water Heater Energy efficient with plenty of hot water,also known as demand-type or instantaneous water heaters, provide hot water only as it is needed,our water heaters with thermal efficiency up to 90%,Instant hot water at the point of use, whenever needed,Also equipped with a high-definition intelligent digital LED display,effortlessly adjust the temperature between 86°F-158°F according to your preferences.
- 【Easy Assemble and Use】- This Electric Tank Water Heater,for 1/2" NPT water hose connection,with Leakage protection fitting 1/2" NPT, pressure relief valve, two 3FT hoses,10L small tank water heaters,Compact design,The product dimensions are 14.5 x 8.6 x 10.6 inches, can be floor-mounted in a discreet location.
- 【Satisfaction Guarantee】- We feel confident that you will love our mini tank water heater. If there's something makes you unsatisfied, please don't hesitate to contact us. We would offer you 100% refund or a replacement within 3 months.
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8
Electric on Demand 220-240V 2-3KW Hot Water Heaters 10L Safty Plug Point of Use Boiler Wash Under Sink on with Digital Temperature Control Smart Control
VINABUKS
18% OffFree Shipping
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VINABUKS
Electric on Demand 220-240V 2-3KW Hot Water Heaters 10L Safty Plug Point of Use Boiler Wash Under Sink on with Digital Temperature Control Smart Control
18% OffFree Shipping
Why we love it
- Compact design saves space.
- Adjustable high-temperature limit.
- Simple and easy installation.
Main Highlights
- Compact and Versatile Design: The VINABUKS Electric Water Heater features a smart 3.3-gallon (15L) tank, perfect for point-of-use applications. Its compact size fits effortlessly under sinks, making it ideal for kitchens, bathrooms, utility rooms, offices, and RVs. This space-saving design ensures hot water is always within reach.
- Instant Hot Water: Experience the convenience of immediate hot water at your fingertips. This water heater offers a fast recovery rate, providing instant hot water whenever you need it. The efficient 220V US safety plug ensures safe and reliable performance.
- Complete Installation Kit Included: This water heater comes with all necessary accessories for a seamless installation, including 2 PCs compression stainless steel water hoses, 1 pressure relief valve, and 1 tee fitting. The user-friendly design ensures a quick and easy setup process.
- High Energy Efficiency: Equipped with advanced insulation materials and a high-efficiency design, the VINABUKS water heater minimizes heat loss and maximizes energy savings. Its rapid heating capability ensures you get hot water on demand, reducing energy consumption and saving on your utility bills.
- Durable and Safe Construction: Built to last, the VINABUKS water heater features a high-quality stainless steel tank and a leak-proof design. It includes multiple safety features such as overheat protection and a pressure relief valve. With reliable customer support, you can trust in its long-term safety and performance.
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9
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
Bellanny
13% Off
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Bellanny
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.
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10
Electric Hot Storage Water Heater 50L Water Heater Storage, RV TR Endless Trailer Indoor Waterproof Shower Compact Point-of-Use, UK Plug (White-10L)
GEESEN
24% OffFree Shipping
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GEESEN
Electric Hot Storage Water Heater 50L Water Heater Storage, RV TR Endless Trailer Indoor Waterproof Shower Compact Point-of-Use, UK Plug (White-10L)
24% OffFree Shipping
Why we love it
- Quick heating saves you time.
- Large capacity meets daily needs.
- Keeps warmth for longer.
Main Highlights
- Point of Use Design The GEESEN 50L Electric Water Heater is designed to provide immediate hot water at various points of use, making it ideal for homes, offices, and small commercial settings.
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