Best Boiler 10 Liter 2026

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Last Updated - 03.02.2026

Best Choice

01

AEG

AEG Electric Water Heaters with Small Storage Tank, white, 229486

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9.8

Exceptional

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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: Thermostop technology, 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

271,75 €
02

G2 Energy Systems

10 Litre Pressure-resistant Übertisch Hot Water Tank Boiler – Electric – Ideal for Kitchen, Guest Toilet, Bungalows etc

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9.6

Exceptional

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Main highlights

Weight: 6.6 kg
Power consumption/connection: 2000 watts, 230 V - 50 Hz
Includes safety valve, safety thermostat, protective anode and hanging loop
Height: 430 mm, width: 285 mm, depth: 288 mm
10 litre electric wall-mounted hot water tank for overtable mounting

146,00 €
03

Thermoflow

Thermoflow UT 10 Undersink Storage Unpressurised Hot Water Boiler 10 L Storage Volume Electric Hot Water Boiler G 3/8 Inch Connection 35-75 °C 65 °C in 20 Minutes

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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

Mounting: the hot water boiler with G 3/8 inch connection can be mounted on a wall. With a dimensions of 45.8 (H) x 31 (W) x 27.85 (D) cm, the 10 litre small storage tank can be mounted to save space
Hot water storage: the ready-to-plug electric hot water tank, with automatic frost protection, has a storage volume of 10 litres and can be mounted as a hot water undersink device
Energy-saving: thanks to the energy-saving mode and energy efficiency class A, the Thermoflow under-sink boiler allows efficient water heating with an annual power consumption of 513 kWh
Box contents: the Thermoflow UT10 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 20 minutes. From 10 °C to 65 °C, the 10 litre under-sink unit ensures pleasantly tempered water and is ideal as a boiler in the kitchen or bathroom

109,00 €
04

Thermoflow

Thermoflow UT 10 Undersink Storage Unpressurised Hot Water Boiler 10 L Storage Volume Electric Hot Water Boiler G 3/8 Inch Connection 35-75 °C 65 °C in 20 Minutes

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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

Mounting: the hot water boiler with G 3/8 inch connection can be mounted on a wall. With a dimensions of 45.8 (H) x 31 (W) x 27.85 (D) cm, the 10 litre small storage tank can be mounted to save space
Hot water storage: the ready-to-plug electric hot water tank, with automatic frost protection, has a storage volume of 10 litres and can be mounted as a hot water undersink device
Energy-saving: thanks to the energy-saving mode and energy efficiency class A, the Thermoflow under-sink boiler allows efficient water heating with an annual power consumption of 513 kWh
Box contents: the Thermoflow UT10 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 20 minutes. From 10 °C to 65 °C, the 10 litre under-sink unit ensures pleasantly tempered water and is ideal as a boiler in the kitchen or bathroom

75,16 €
Value for Money

05

Thermoflow

Boiler Hot Water Tank 10 L Undersink Pressure Resistant Ready to Plug Thermoflow

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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

Mounting: the hot water boiler with G 1/2 inch connection can be mounted on a wall. With a dimensions of 32.4 (H) x 32.4 (W) x 31.5 (D) cm, the 10 litre small storage tank can be mounted to save space
Hot water storage: the ready-to-plug electric hot water tank, has a storage volume of 10 litres and can be mounted as a hot water undersink device
Energy-saving: thanks to the energy-saving mode and energy efficiency class B, the Thermoflow under-sink boiler allows efficient water heating with an annual power consumption of 570 kWh
Box contents: the pressure-resistant Thermoflow DS 10U boiler comes ready for plug, including instruction manual (English language not guaranteed). Before starting up the small tank, the device must be filled with cold water. Installation only with pressure fitting.
Areas of use: with a heating time of 21 minutes. From 10 °C to 65 °C, the 10 L under-sink unit ensures pleasantly tempered water and is ideal as a boiler in the kitchen or bathroom

109,52 €
06

ELDOM

Eldom Hot Water Tank/Boiler 10 L Undersink Pressure Resistant White

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18% Off
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

Steel container and high-performance enamel, corrosion protection (anode protection)
Pressure-resistant - combination check valve incl.
Made in the EU
Ideal in the kitchen cupboard
Dimensions (H x W x D): 430 x 285 x 288 mm, cable with plug
Cold and hot water connection 1/2 inch
2000 W - heating time from 12 to 65 degrees in 19 minutes.

122,63 € 149,00 €(18% Off off)
07

Hurrylying

10 L Small Water Tankless Water Pressure Resistant Electric Boiler Storage Undercounter 1500 W Mini Tankless Boiler Water Heater for Kitchen Guest Toilet Low Pressure Suitable [Energy Class B]

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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

Undermount kitchen boiler creates 6 litres of hot water per minute at 30 to 65 °C, so that sinks in Berlin old apartments are immediately supplied with 40 °C water without waiting time
Under-sink boiler is connected in 15 minutes using the included German instructions, requires only standard ½ inch tap and protective socket 230 V, no plumber required
Tankless water heater fits in 23 x 21 x 36 cm under any standard kitchen unit and saves 30% space compared to 10 litre tanks, ideal for small shared kitchens or guest toilets in Munich new buildings
Stainless steel instant boiler with 1.5 kW consumes only 0.4 kWh per typical kitchen flush, saves up to 80 Euro electricity costs in German households per year compared to hot water pipe
IPX4 tested low pressure water heater starts at 0.3 bar, so works safely in the Hamburg high-rise building during morning shower time and switches off automatically after use

87,00 €
08

Coniaio

10L Small Pressure-resistant Hot Water Tank, 1500 W Under-Sink Storage with Drain Pipe, 30-65°C Temperature Adjustable Water Heater for Kitchen, Bathroom

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32% Off
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

Start even at low water pressure: the pressure-resistant boiler 10 l is ready to use regardless of building height and consumption peaks. So you can reliably enjoy warm water at any time even in environments with weak line pressure - ideal for upper floors or peak hours
Safe and waterproof: the under-sink boiler pressure-resistant provides lifelong protection against moisture. It will automatically shut off as soon as it is not in operation or reaches too high a temperature. Thanks to the consistent separation of water and electricity as well as an integrated safety device, it ensures maximum application safety
SPACE SAVING This 1500W under-sink storage can be installed under the sink and saves space under the sink thanks to its small size. Thanks to its simple structure and the enclosed instructions (English language not guaranteed), you can install it without much effort and time
Quick heating: thanks to the highly efficient heating tube of this under-sink boiler, the water is quickly brought to the desired temperature, so that long waiting times are eliminated. In addition, you can freely adjust the temperature between 30 and 65 °C to flexibly meet your family's daily hot water needs
High durability: the small storage under table with inner lining made of 304 stainless steel is more durable and has a longer service life

38,99 € 56,99 €(32% Off off)
09

AEG

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

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34% Off
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.

Show more
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)
10

ELDOM

10 ltr Electronic Tankless Water Heater 2.0 KW from Sink Under Pressure Water

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8.3

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

This boiler comes with a manual and an installation package (consisting of an inlet with combined safety valve and screws).
The kettle is made in the EU and meets all safety and quality standards
The ELDOM 72325NMP is an electric boiler with a capacity of 10 litres. It is for installation at the top of the sink or in a hanging cabinet.
Easy temperature control & installation kit included: external mechanical thermostat, illuminated power switch and included inlet + safety valve kit for quick setup.
ENERGY EFFICIENT PU FOAM INSULATION - High density ECO insulation minimizes heat loss, helping to reduce energy consumption while keeping water temperature constant for longer.
COMPACT 10L CAPACITY & HEAVY DUTY CONSTRUCTION: Space saving design (430 x 285 x 288 mm) with corrosion-resistant steel container. Fits perfectly over the sink or in kitchen cupboards.

126,43 €