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Best Water Heaters - Holiday Sale

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Last Updated - 17.12.2025

Best Choice

01

Stiebel Eltron

STIEBEL ELTRON DHB 18/21/24 ST Trend Electronic Instantaneous Water Heater 18/21/24 kW (Selectable), Energy Saving Water Heater, Kitchen and Bathroom, 204202

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9.9

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Safety: a specialist can permanently limit the outlet temperature of the water and thus activate a scald protection or child lock
Installation: time-saving installation thanks to the professional rapid installation system and effortless replacement of all standard instantaneous water heaters; high power connection optionally at the top or bottom
Energy-saving: the 3i technology with 3 sensors ensures a constant hot water temperature
Country approval: Germany
Comfort features: the infinitely variable control dial is equipped with a temperature scale; the high operating comfort is maintained even during under-table installation, as the device cap and the control unit can be rotated
Box contents: Stiebel Eltron DHB 18/21/24 ST Trend, hanging rail, mounting template, special accessories, operating and installation instructions (English language not guaranteed)
Areas of application: electronic instantaneous water heater for hot water supply of several removal points; the closed, pressure-resistant device can be used with all standard pressure fittings

309,00 €
02

Vaillant

Vaillant Electronic instantaneous water heater, VED E 21/8, pressure-resistant, 21 kW, 400 V, degree accurate outlet temperature, infinitely adjustable, digital display, 0010023778, energy class A

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9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Warm water comfort: outlet temperatures from 30°C to 55°C, precise and easy to adjust thanks to the integrated digital temperature display
Use: ideal for reliable water heating for one to several taps (tap capacity of 8 l/min) – a simultaneous hot water supply in the bathroom (shower, sink or bathtub) is possible – only suitable for connection points with a power of 21 kW (power line: 5-core with 6 mm² cable cross-section)
Tested safety: Vaillant electronicVED E 21/8 with adjustable scalding protection
Technical details – Connection: 400 Volt / 50 Hz fixed connection; Protection type: IP25 jet water protected; Mounting location: Overtable; Dimensions: 9.9 x 48.1 x 24 cm; weight: 4.4 kg
Proven efficiency: Ideal for replacing hydraulic instantaneous water heaters – up to 30% electricity and water costs can be saved in comparison
Previous model: Vaillant electronicVED E 21/7, item number 0010007728

273,90 €
Value for Money

03

AEG

AEG Boiler BOI 5 U, Under-Sink Boiler 5 Litres Low Pressure with Plug 230 V for Kitchen Sink and Wax Basin, 2 kW, Made in Germany, 204616

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9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Safety and quality: child lock thanks to adjustable temperature limit/scald protection; tested safety by VDE testing institute, frost protection, made in Germany
Installation: easy installation, with plug (socket and cold water connection sufficient), under-sink mounting
Energy-saving functions: high quality thermal insulation, low standby consumption, energy efficiency class A
Comfortable operation: selectable desired temperature, infinitely adjustable from 35 to 85 °C
Box contents: a AEG small storage, operating and installation instructions (English language not guaranteed), wall hanging
Areas of use: open boiler 5 l under-sink for a water point in the kitchen and bathroom; Warning: use only with low pressure/pressureless tap – recognizable on the 3 connection hoses – hose shower fitting is only to be used with kink protection

69,90 €
04

Hoberg

Hoberg Stainless Steel Electric Instantaneous Water Heater, Powerful Heating Coil, LED Temperature Display, Flexible Use in the Garden, Workshop, Patio, Caravan, Rustproof and Robust

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Simple: the compact universal instantaneous water heater is easily operated via a power connection (220-240V). Simply screw onto the water connection, plug in the power cable - the installation is ready and the water heater can be used.
Fast: thanks to the powerful heating coil with 3600 W power, the water gets warm quickly - without long preheating and without water reservoir. The water temperature can be up to approx. 60°C (depending on the water pressure and attachment).
Durable and flexible: the water heater is made of rust-proof and robust stainless steel and with the plug-in connection adapter is ideal for various applications, such as in your own garden, camping and many more.
Compact: The small instantaneous water heater with powerful heating coil is simply ideal for almost all water connections with an obvious power connection - whether in the garden, the workshop, on the terrace or as a water heater when camping.
Clear: with the digital LED temperature display, the degree number can be read accurately and easily. The display can be rotated 360° so it can be flexibly attached to the left or right side of the water connection.

43,99 €
05

AEG

AEG Electric Water Heaters with Small Storage Tank, white, 222162

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9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Safe: tested safety by VDE testing institute, frost protection position
Please note: use only with low pressure/pressureless fittings, recognizable on the 3 connection hoses, do not use a hose shower fitting
Made in Germany
High hot water comfort for a water point: immediately hot water in the kitchen and bathroom
Economical and efficient: high-quality thermal insulation, low standby consumption, energy saving setting, energy efficiency class A
Easy temperature selection: stepless from 35-85°C, temperature selection limitation possible to 45/55/65°C
Easy installation: ready to plug, under-sink mounting

74,99 €
06

Stiebel Eltron

DNM Small Instant Water Heater

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9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Temperature increase of the water by 25 degrees: the outlet temperature on the tap depends on the cold water inlet in the building; hot water flow rate: max; 2.0 l/min
Temperature increase by approx. 25 °C
Pressure-free operation
No standby or distribution losses
Installation: only horizontal over- or under-table wall mounting; earthing contact plug 230 V
Fitting: only for pressure-free fitting (recognizable by the 3 connection hoses)
Efficient: includes special aerator (included) for pleasantly soft water jet; saves water and energy without sacrificing comfort
Country approval: Germany, Austria
Box contents: Stiebel Eltron instantaneous water heater DNM 3, special aerator, sieve, operating and installation instructions (English language not guaranteed)
Areas of use: mini instantaneous water heater with plug for hand washbasin in the guest toilet; immediately lukewarm water (approx. 35°C); not suitable for kitchen and bathroom - here a Stiebel Eltron small storage tank or instantaneous water heater from 11 kW is necessary

110,40 €
07

MAXXMEE

MAXXMEE Compact Instantaneous Water Heater Instant Hot Water from Almost Any Water Connection Electric Stainless Steel Tap for Garden, Workshop, Camping etc. 220-240 V

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

High quality and robust: the compact tap made of high-quality stainless steel is splash-proof according to IPX4. This makes it a heat-resistant, robust boiler for hot water from almost any water connection, e.g. for outdoor shower, workshop, caravan, pool heating and bathroom.
The Exxtra for you: with the German brand MAXXMEE you will find clever products for almost any everyday situation. Whether practical for your kitchen, the garden and the household or stylish for your beauty and wellness time. MAXXMEE is the clever everyday all-rounder with the Exxtra for you.
Powerful and intuitive: thanks to 3000-3600 watts, the heating coil heats water in seconds (water temperature up to 60°). So the water heater is ideal for getting hot water anywhere where there were previously only cold water connections. With LED digital display
Instant hot water: the electric instantaneous water heater provides max. 60° hot water from almost any cold water connection, without long preheating and without water reservoir. Set the desired temperature and enjoy hot water in the garden, kitchen, shower and camping.
Easy installation: screw the instantaneous water heater on the old tap, plug in, done! With plug connection adapter for standard hose connection plug-in systems; universal adapter; brass adapter M22 to 3/4 inch adapter, aerator; brass adapter M22 to 1/2 inch adapter; base connection M22.

46,99 €
08

Clatronic

Clatronic WKS 3692 Electric kettle concealed heating element, automatic switch-off, base station with cable rewind, 1.5 L, 2200 W, stainless steel, black / stainless steel.

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9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Easy handling, thanks to cordless technology — easy pouring in and out, 360° rotatable plug connection, on/off switch (illuminated in blue).
Concealed stainless steel heating element, automatic and manual switch-off, base station with cable rewind.
Capacity up to 1.5 litres, stainless steel housing, safety hinged lid with one-handed operation.
Boil Dry / Overheat Protection 220 - 240V, 50Hz, 1850 - 2200W

12,99 €
09

babikeen

babikeen Tap with Instantaneous Water Heater, Electric Tap with Instantaneous Water Heater, 360° Rotating LED Instantaneous Water Heater, 220 V 3000 W Electric Tap

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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

LED temperature display: water tap with instantaneous water heater. Feel free to control the temperature, intimate temperature display function, real-time display of current water temperature.
High-quality material: instantaneous water heater tap high temperature resistant, soft and strong, not easy to burst. Convenient, simple and easy to install. Can be used in the kitchen, toilet and other places. Hot and cold dual use.
Fast heating: electric tap with instantaneous water heater with a 3000 W stainless steel heating tube, water can be heated in 3 seconds without waiting too long. No need to store water and keep warm to preheat it. To avoid heating too much water and waste. Winter temperature: 45-55 degrees Celsius.
Durable use: water heater with strong impact resistance makes the product not easy to age, safe and durable.
360° rotating outlet pipe: this electric tap covers the water supply surface by rotating the outlet pipe to increase the water supply area to meet the multi-directional water needs.

27,96 €
10

MAXXMEE

Maxxmee Hot and Cold Water Tap, 360° Swivel Tap Attachments, Electric Basin Mixer Tap with Heating Coil, Also Compatible with 1/2 Inch Garden Hose Connectors (Stainless Steel)

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8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Practical - electric washbasin tap with integrated, powerful heating coil.
Perfect - 2 interchangeable and 360° swivelling tap attachments: a standard and a flexible tap.
Optimal - extra long thread for the hose supply line - easy to install even on thicker worktops.
Includes - compatible with 1/2 inch garden hose connections.
Ideal - warm water in seconds without preheating and water reservoir - reaches temperatures above 60 °C depending on the water pressure.

45,99 €