Here's a ranking of the best products in this category. To give you a quick overview, we've also added some key information about the products.
1. Stiebel Eltron DHE 18/21/24 kW Fully electronic instantaneous water heater always accurate to the degree thanks to
The Stiebel Eltron DHE 18/21/24 is a fully electronic instantaneous water heater that ensures a constant and precise supply of hot water for multiple draw-off points in the kitchen and bathroom. Thanks to the innovative 4i technology, the set water temperature remains stable even when water is drawn from other points simultaneously. The intuitive operation is carried out via a tactile rotary control, allowing for stepless temperature adjustment in 0.5 °C increments. The illuminated multifunction display provides a clear overview of the current water temperature, energy consumption, and other important information. With a compact design and the option for under-sink installation, this instantaneous water heater is both functional and space-saving. It meets the highest demands for comfort and energy efficiency, making it an ideal solution for modern households.
- 4i technology for constant water temperature - Intuitive operation via tactile rotary control - Illuminated multifunction display for easy readability - Energy efficiency class A for low power consumption - Suitable for multiple draw-off points simultaneously.
Stiebel EltronDHE 18/21/24 kW Fully electronic instantaneous water heater always accurate to the degree thanks to
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2. Ariston Lydos Eco
WaterPlus technology: Up to 15% more water is available. ECO EVO function thanks to CoreTECH technology: energy savings of up to 14%. Precise manual temperature setting. The "Shower ready" symbol indicates the first available shower. Total safety system to ensure the proper function of the product.
WaterPlus technology: up to 16 % more hot water available. Eco Evo function powered by CoreTECH: energy savings of up to 14 %. Manual temperature setting. Thanks to the "Shower ready" function, the application indicates when the first shower is available and the T-MAX function can be used in case of unexpected hot water demand. Thanks to the large magnesium anode, it is more resistant to corrosion. It has a high-quality, enamelled titanium tank.
4. Dafi POZ03137 Kettle & Boiler Vertical Without Tank (Direct)
The Dafi POZ03137 is a powerful instantaneous water heater designed for vertical installation and operates without a tank. This device provides immediate hot water supply, making it ideal for households seeking an efficient and space-saving solution. With a maximum power of 9000 W, the POZ03137 allows for a high hot water flow of up to 4 l/min, making it a practical choice for various indoor applications. The energy efficiency class A ensures that operation is cost-effective, while the IPX4 protection rating offers additional splash water protection. The water heater is designed for a temperature range of 4 to 45 °C and can operate at a maximum pressure of 6 Bar, making it a reliable device for daily use.
- Instant hot water supply without a tank - High rated power of 9000 W for efficient operation - Energy efficiency class A for cost-effective operation - IPX4 protection rating for additional splash water protection - Suitable for a temperature range of 4 - 45 °C.
DafiPOZ03137 Kettle & Boiler Vertical Without Tank (Direct)
5. Vaillant Hot water tank
The Vaillant hot water storage tank VEN 10 U is a non-pressurized hot water system designed for wall mounting. With a volume of 10 liters and a rated power of 2 kW, this tank offers an efficient solution for providing hot water. The hot water storage tank is made of plastic, making it lightweight and corrosion-resistant. It is designed for operation with cold drinking water and can reach temperatures of up to 65 °C. The heating time from 10 °C to 65 °C is only 18 minutes, ensuring quick availability of hot water. The Vaillant hot water storage tank is ideal for applications where a continuous flow of water is required and is particularly suitable for use in households or small commercial establishments.
- Non-pressurized design for safe use - Quick heating time of 18 minutes - Wall mounting for space-saving installation - Maximum operating pressure of 1 bar - Durable plastic material for longevity.
6. AEG Haustechnik Small instantaneous water heater MTH 350 for hand basin only, 3.5 kW, with plug, unpressurised, VDE
Stiebel Eltron Small Instant Water Heater AEG MTH 350
Manufacturer: Stiebel Eltron Designation: Small Instant Water Heater 3.5 kW Type: AEG MTH 350 Material of Pressure Vessel: Plastic Nominal Capacity: 0.1 l Max. Operating Pressure: 1 bar Nominal Power: 3.3 kW Nominal Voltage 1: 200 V Nominal Voltage 2: 240 V Suitable for KNX: no Operation: manual Temperature Display: none With Display: no Mounting Type: Above sink/Under sink Power Control: none Connection Power: 3.3 kW Heating System: Bare Wire Safety Shutdown: Pressure Shutdown Protection Class (IP): IP25 Cold Water Connection: External Thread Nominal Diameter Cold Water: 3/8 inch Hot Water Connection: External Thread Nominal Diameter Hot Water Connection: 3/8 inch Suitable for Plastic Pipes: yes Suitable for Preheated Water: no Type of Control: hydraulic With Faucet: no Energy Efficiency Class (812/2013/EU): A Height: 143 mm Width: 190 mm Depth: 82 mm Weight: 1.4 kg
The hydraulically controlled small instant water heater supplies a draw-off point with hot water. The open, pressureless device can be mounted both above and below the sink.
Comfort Features: The device starts automatically when water is drawn, and the hot water output depends on the cold water temperature, heating power, and flow rate. The desired temperature is set at the faucet. Due to its bare wire heating system, the instant water heater is also suitable for hard water.
Installation: The device features a wall mount that is fully integrated into the back panel. Additional features include metal water connections and a pre-installed connection cable. Installation is only possible with a faucet for mini instant water heaters or with the special aerator included in the delivery.
AEG HaustechnikSmall instantaneous water heater MTH 350 for hand basin only, 3.5 kW, with plug, unpressurised, VDE
7. AEG Haustechnik low-pressure water heater Huz 5 Basis, 5-litre under-sink boiler, with plug
Good value for money.
Application area: Open boiler with 5 liters for a water point in the kitchen and bathroom. Caution: Use only with low-pressure or pressureless fittings, identifiable by the three connection hoses. Do not use a hose shower fitting.
Comfortable operation: Simple temperature selection, continuously adjustable from 35 to 85 °C, with temperature limit selection possible at 45/55/65 °C.
Energy-saving features: High-quality thermal insulation, low standby consumption, energy-saving mode, energy efficiency class A.
Safety and quality: Child safety through adjustable temperature limit and scald protection. Tested safety by VDE testing institute, frost protection, made in Germany.
Installation: Easy installation with plug; socket and cold water connection are sufficient for under-sink mounting.
Country approval: Germany.
Modern, attractive design. Stepless temperature selection. Wall bracket for easy mounting. Resettable safety temperature limiter. Excellent thermal insulation with minimal external dimensions. Connection cable with protective contact plug. Temperature limit selection possible at the rotary knob. Pressureless (open) small storage heater for under-sink installation. The resettable safety temperature limiter is reset by pulling the plug. Installation and use only with a low-pressure fitting.
Pressureless, open small storage heater for under-sink installation. The temperature is continuously adjusted via a rotary knob. Low standby energy consumption. The safety temperature limiter is reset by pulling the plug. The corrosion-resistant inner container made of polypropylene is equipped with a copper heating flange and surrounded by recyclable EPS foam insulation. The electrical connection cable features a protective contact angled plug.
AEG Haustechniklow-pressure water heater Huz 5 Basis, 5-litre under-sink boiler, with plug
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8. Stiebel Eltron SNU 5 Plus, very compact, anti-drip, thermostop, under-sink boiler 5 l low pressure with plug, 2 kW
Experience high quality. You receive hot water quickly and without waiting. For stepless temperature adjustment, use the high-quality rotary control with a tactile click. To keep the water at your chosen temperature consistently warm, the small storage tank requires little energy. Another advantage: replacing older models is very simple, as you can reuse the existing wall mounting for this small storage tank.
Application area: Low-pressure boiler for the sink in the bathroom or the kitchen sink.
Comfort features: Stepless temperature adjustment via a high-quality rotary selector with a tactile click. Space-saving due to compact dimensions.
Energy saving: The energy-saving thermostop function prevents unwanted heating of the faucet. Low energy losses thanks to high-quality thermal insulation of the inner container. Water savings: The anti-drip function prevents dripping during heating, thereby reducing limescale deposits.
Safety: Integrated scald protection. 4-stage temperature limitation.
Faucet and installation: Low-pressure faucet required - use of a pressure faucet is not permitted. Only vertical under-sink installation. Plug-and-play: 230 V. Easy wall mounting thanks to a universal mounting rail. Simple replacement of older models.
Scope of delivery: Stiebel Eltron small storage tank SNU 5 Plus, operating and installation instructions, wall mounting.
Compact and high-quality small storage tank for under-sink installation as a BVB fan edition. Hot water available immediately. Very low energy losses thanks to thermostop technology. Easy installation thanks to the protective contact plug. Optimized hot water provision for higher efficiency with ECO mode. Quick and easy replacement of predecessor devices thanks to the universal wall bracket.
Stiebel EltronSNU 5 Plus, very compact, anti-drip, thermostop, under-sink boiler 5 l low pressure with plug, 2 kW
9. LIN LIFVD1
The LIN LIFVD1 30L is an efficient hot water cylinder designed for wall mounting. With a volume of 30 litres, it offers a reliable solution for providing hot water for various household applications. The boiler is characterised by its robust construction made of enamelled steel, which ensures durability and resistance. With a rated output of 2000 watts and an energy efficiency class B, it is designed to ensure an optimum hot water supply while keeping energy consumption to a minimum. The pressure-resistant design and maximum pressure capacity of 0.7 megapascals make it a safe choice for everyday use. The LIN LIFVD1 30L is a practical and reliable solution for anyone who needs a constant supply of hot water.
10. Dafi POZ03138 Kettle & Boiler Vertical Without Tank (Direct)
Small biphase Dafi water heater, 11 kW, 400 V, with pipe connector ½ inch.
The Dafi water heater is suitable for bath and sink/tub combinations. Unlike other water heaters, installing the Dafi water heater at any angle does not adversely impact its performance, and it does not damage the heating element.
Comfortable and modern water heating systems or their maintenance do not have to be expensive. Furthermore, to achieve great efficiency, it is not necessary to use gas-burning appliances that can be hazardous to health, produce harmful fumes, and negatively affect the environment. The Dafi electric tankless heater, a small-sized device installed near the water intake, seems to be a perfect solution combining comfort, modernity, and safety.
The Dafi electric tankless water heater was designed to supply hot water anywhere within the water system. Its small size allows Dafi heaters to be installed as close as possible to the sink, bathtub, or shower cabin, ensuring time, water, and energy savings. Dafi takes power only during hot water supply.
Neither power nor water is wasted when the water flows down the installation or when it stays in pipes. The high efficiency of the Dafi heating element allows the device to achieve results comparable to much larger heaters.
Heated water is isolated from the outside temperature. To install and run the heater, only a single pipe with cold water and a power connection are required. Dafi is also easy to install because all necessary hydraulic fittings and electrical connections are supplied.
The small size of the Dafi heater makes it easier to install the device above or under the sink, next to the bathtub, or shower cabin. Dafi is a perfect alternative to heating systems using electronic or tankless heaters of much larger size and capacity. It is mounted inside the cabinet, thereby taking up very little space.
