Best Thermoflow Ot 5 2026

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Last Updated - 27.03.2026

Best Choice

01

Thermoflow

Thermoflow UT Set of 5 Ovalis Under-Sink Storage Unit Including Low Pressure Fitting/Hot Water Boiler 5L Storage Volume/G 3/8 Inch Connection / 35-75 °C / 65 °C in 10 Minutes / UT5SetOvalis

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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

Warm water storage: the under-sink storage with tap has 5 litres of storage volume. The low-pressure tap of the electric hot water tank is suitable for pressureless under-sink devices
Installation: the hot water boiler with G 3/8 inch connection is suitable for under-sink installations. With a dimensions of 42 (H) x 27 (W) x 18 (D) cm, the 5 litre small storage tank can be mounted to save space
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 490 kWh
Box contents: the Thermoflow UT5 low pressure boiler comes ready for plug, including instruction manual (English language not guaranteed). A low pressure Ovalis fitting is included for commissioning the small reservoir
Areas of use: with a heating time of 10 minutes. From 10 °C to 65 °C, the 5 L under-sink unit ensures pleasantly tempered water and is ideal as a boiler in the kitchen or bathroom

119,99 €
02

AEG

AEG Electric Water Heaters with Small Storage Tank, white, 221117

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9.8

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, overtable mounting

111,90 €
03

Thermoflow

Thermoflow DS 5U Under-Sink Storage / Low Pressure Storage / Hot Water Boiler 5 L Storage Volume / G 1/2 Inch Connection / 30-65 °C / Suitable for Low Pressure Fittings / with Metal Tank / Energy

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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

Mounting: The hot water boiler with G 1/2 inch connection can be mounted on a wall. With a dimension of 32.8 (H) x 23.4 (W) x 22.7 (D) cm, the 5 litre small storage tank can be installed to save space. Suitable for low pressure fittings. The metal tank also allows for pressure-resistant installation.
Hot water storage: the ready-to-plug electric hot water tank has a storage volume of 5 litres and can be mounted as a hot water undersink device. The integrated metal tank ensures high durability and stability.
Energy-saving: thanks to the energy-saving mode and energy efficiency class B, the Thermoflow DS 5U under-sink boiler allows efficient water heating with an annual power consumption of 563.4 kWh
Box contents: the Thermoflow DS 5U boiler comes ready to plug in with instruction manual. Before starting up the small tank, the device must be filled with cold water.
Areas of use: with a heating time of 14 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 sink. Suitable for low pressure fittings - ideal for single dispensing points.

94,05 €
04

Thermoflow

Thermoflow Elex 5.5 kW Instantaneous Water Heater 230 V | Pressureless Small Instantaneous Water Heater | Hot Water up to 40 °C | G 3/8 Inch Connection | 3 L/min | For Washbasin or Kitchen Sinks

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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

Water heater: The Elex 5.5 electric instantaneous water heater ensures pleasantly tempered water up to 40 °C and can be used as an under-sink device or as a instantaneous water heater for top table installations
Installation: The water heater has G 3/8 inch connections and is mounted on a wall. With dimensions of 18 (H) x 13 (W) x 6.8 (D) cm, the small instantaneous water heater is
Energy-saving: the 5.5 kW instantaneous water heater allows efficient water heating thanks to energy efficiency class A. The annual power consumption of the Thermoflow instantaneous water heater is 461 kWh
Box contents: the Thermoflow Elex 5.5 low-pressure instantaneous water heater is not ready to plug in and comes with instruction manual and mounting material. A low-pressure fitting is mandatory for commissioning
Areas of use: thanks to the power of 5.5 kW and a hot water output of 3 l/min. The electric water heater is suitable as an instantaneous water heater for the kitchen or washbasin

75,76 €
Value for Money

05

Thermoflow

respekta Klein-Durcherhitzer Thermoflow 3.5 inkl. Armatur

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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

Water heater: The Elex 3.5Arm electric instantaneous water heater ensures pleasantly tempered water up to 25 °C and can be used for top table mounting
Mixing tap: the two-handle mixer tap allows continuous temperature control. With the two separate handles, the hot and cold water flow can be individually adjusted
Installation: The water heater has G 3/8 inch connections and is mounted on a wall. With dimensions of 16.7 (H) x 13 (W) x 6.8 (D) cm, the small instantaneous water heater is space-saving
Box contents: the Elex 3.5 instantaneous water heater comes ready to plug in with mixer tap and instruction manual. A low-pressure fitting is mandatory for commissioning
Areas of use: thanks to the power of 3.5 kW and a hot water output of 2 l/min. The electric water heater is ideal as an instantaneous water heater for the kitchen or washbasin

99,00 €
06

Thermoflow

respekta ThermoFlow Small Tankless Water Heater 3,5 KW Electronic

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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

Water heater: The Elex 3.5 electric instantaneous water heater ensures pleasantly tempered water up to 25 °C and can be used as an under-sink device or as a instantaneous water heater for top table installations
Installation: The water heater has G 3/8 inch connections and is mounted on a wall. With dimensions of 16.7 (H) x 13 (W) x 6.8 (D) cm, the small instantaneous water heater is
Energy-saving: the 3.5 kW instantaneous water heater allows efficient water heating thanks to energy efficiency class A. The annual power consumption of the Thermoflow instantaneous water heater is 461 kWh
Box contents: the Thermoflow Elex 3.5 low pressure instantaneous water heater comes ready to plug in and includes instruction manual (English language not guaranteed). A low-pressure fitting is mandatory for commissioning
Areas of use: thanks to the power of 3.5 kW and a hot water output of 2 l/min. The electric water heater is suitable as an instantaneous water heater for the kitchen or washbasin

74,89 €
07

Thermoflow

Thermoflow QMIX12N Low Pressure Two-Handle Mixer Tap for Under-Sink Storage / Continuous Temperature Control / with Single Hole System & Fixed Connection

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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

Temperature control: the two-handle mixer tap allows continuous temperature control. With the two separate handles, the hot and cold water flow can be individually adjusted
Installation: the installation of the Thermoflow two-handle mixer tap is quick and easy. It fits seamlessly with most under-sink storage units and standard connections
Design: the mixer tap for under-storage unit impresses with its timeless design. With its smooth surface and clean lines, it blends harmoniously into your kitchen or bathroom
Construction: The mixer tap is made of high-quality materials and is very robust. The tap in a classic design has been specially developed for pressureless under-sink storage
Box contents: a Thermoflow two-handle mixer tap for non-pressurised under-sink storage units of type QMIX12N and the accompanying assembly instructions (English language not guaranteed). Dimensions: 250 x 100 x 40 mm (H x W x D)

37,88 €