Best Boiler Elektro 2026

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Last Updated - 03.02.2026

Best Choice

01

Vaillant

Vaillant VEK 005124 5 L Electric Boiling Water Device Wall-Mounted (White), 230 V, 2.4 kW Heating Output, Electric Hot Water Heater with Power Cable

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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

With buzzing sound - Practical are the buzzing sound when the boiling temperature is reached and the interval automatic cooking function: the water heater turns on again when the water cools.
High safety - The electric hot water tank offers high safety thanks to the temperature limiter and switches off when the desired temperature is reached.
CONVENIENT HELPER - The hot water device brings up to 5 litres of water to any temperature between 30 and 100 °C in no time at all, so a separate kettle is unnecessary.
Box contents: Vaillant VEK 5 L electric boiling water device wall mounted (white), with power cord, low height thanks to integrated fitting, dimensions: 345 cm x 265 cm x 165 cm.
Boiling water - The proven Vaillant VEK 5L is ideal for anyone who needs not only warm, but also hot or boiling water directly at the tap.

176,94 €
02

WSIKGHU

WSIKGHU Hot Water Heater 50L/80L/100L/120L, Energy-Saving 2000W Vertical Wall Mounted Water Heater, Max. 75°C, with Leakage Protection, G1/2 Plug (100L)

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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

Safe to use: Overheating protection, leakage protection, protection against high water pressure and other safety devices ensure safety and reliability.
Fast heating: 2000 W power and a fast heat conducting tube made of stainless steel can provide you with hot water in a short time, which avoids long waiting times.
Easy to use: The clear control panel with digital temperature display makes it easy for the elderly.
Easy to install: Interface: G1/2, complete accessories, with two mounting brackets and corresponding mounting screws, you can easily complete the assembly.
Adjustable temperature: Simply adjust the temperature (25-75°C/77-167°F) with the rotary knob and select the mode that meets the different bathing needs.

121,00 €
Value for Money

03

AEG

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

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34% Off
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

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 € 114,24 €(34% Off off)
04

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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9.5

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

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 €
05

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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9.4

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

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

54,99 €
06

Vaillant

Vaillant 10021140 Electric Hot Water Tank VEN 5/7-5 U plus

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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

Scald protection can be activated.
No need to change the wall mounting rail.
Low pressure under-table wall storage.
Frost protection.
Adjustable thermostat from 7°C to 85°C.

85,33 €
07

Vaillant

Vaillant 10021140 Electric Hot Water Tank VEN 5/7-5 U plus

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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

Scald protection can be activated.
No need to change the wall mounting rail.
Low pressure under-table wall storage.
Frost protection.
Adjustable thermostat from 7°C to 85°C.

82,50 €
08

Stiebel Eltron

Newest generation Stiebel Eltron boiler UFP 5 Trend with thermostop function, very compact, under-sink boiler 5 litres low pressure, with plug 230 V, 2 kW, made in Germany, 204966

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8.8

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

Space-saving miracle: for more space under the kitchen sink
Safety: integrated anti-scald protection; 4-stage temperature limitation
Fitting + installation: low-pressure tap required – use of a pressure tap not allowed; only vertical under sink mounting; ready for plug: 230 V; easy wall mounting thanks to universal mounting strip; easy replacement of previous models
Energy-saving: the most compact of its kind with the lowest power consumption; the energy-saving thermostop function prevents unwanted heating of the fitting
Country approval: Germany, Austria, Poland
Comfort features: continuous temperature setting via high-quality rotary selector with tactile detent
Box contents: Stiebel Eltron small storage tank UFP 5 Trend, operating and installation instructions, wall hanging
Areas of use: pressureless boiler for the sink in the bathroom or the sink in the kitchen

99,40 €
09

Thermoflow

Thermoflow top/under-sink storage

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8.6

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

Mounting: the hot water boiler with G 3/8 inch connection can be mounted on a wall. With a dimensions of 42 (H) x 27 (W) x 18 (D) cm, the 5 litre small storage tank can be mounted
Hot water storage: the ready-to-plug electric hot water tank, with automatic frost protection, has a storage volume of 5 litres and can be mounted as a hot water under sink device
Energy-saving: thanks to the energy-saving mode and energy efficiency class A, the Thermoflow UT5 under-sink boiler allows efficient water heating with an annual power consumption of 490 kWh
Box contents: the Thermoflow UT5 low pressure boiler comes ready for plug, including instruction manual (English language not guaranteed). A low-pressure fitting is mandatory for commissioning the small reservoir
Areas of use: with a heating time of 10 minutes. From 10 °C to 65 °C, the 5 litre under-sink unit ensures pleasantly tempered water and is suitable as a boiler in the kitchen or bathroom

47,08 €
10

MEHOOSPVN

MEHOOSPVN Hot Water Tank, 8 L, Under-Sink Boiler, 1500 W, Small Pressure-resistant Hot Water Boiler with Thermostop Function, Under-Sink Boiler 30-65 °C, Adjustable Temperature for Kitchen, Bathroom

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8.5

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

Highly efficient: thanks to the combination of 1500 W power and the quick heating tube, it provides you with hot water in about 15 minutes and thus easily covers your daily hot water needs. Small size and large capacity. It has a small volume, but can store 2.11 gallons of water at once. You can easily install it in a small bathroom or small kitchen to meet your hot water needs.
High safety: it has various protective measures, such as Dry running protection, overheating protection, high voltage protection, water and power separation, etc. In addition, IPX4 waterproof and built-in leakage protection effectively protect you and your family. Selected material: the 316L stainless steel heating tube has good thermal conductivity, which can accelerate the heating process. The ABS housing is more durable and is particularly suitable for damp places such as bathrooms
Easy installation: thanks to its simple structure and the enclosed instructions, you can easily install it on the wall or on the floor under the sink or countertop without much effort and time. There may be a slight difference in colour and due to manual measurement. Make sure you agree with this before ordering.
ENERGY & MONEY SAVING Seamless enamel lining with integrated thermal insulation foam reduces heat loss and keeps temperature constant longer, avoiding waste and high electricity costs caused by repeated heating. Easy to use: the device has automatic water replenishment and a shut-off memory function. All you need to do is turn the temperature controller to set the desired temperature - even the elderly and children can operate the device.
Adjustable temperature: thanks to the high-precision temperature control, you can freely adjust the temperature between 86 and 149 °F with a temperature controller, making the device suitable for all seasons and giving you more comfort in everyday life. High adaptability. The rated operating water pressure is 0.75 MPa, so the device can also be used in high-rise buildings. You don't have to worry about water pressure problems.

57,99 €