Here’s a ranking of the best selling Boilers. To give you a quick overview, we’ve added the most important information about each product. This page always stays fresh and updates automatically.
1. Sygonix Instantaneous water heater
The Sygonix Geyser Compact can be installed quickly, easily and almost anywhere where a water and electricity connection is available. Screw it on, plug it in and you're done. Thanks to the integrated heating coil, the water heats up immediately. The exact temperature can be read on the digital LED display. Finally hot water everywhere: in the garden, on the patio, in the workshop and much more.
The N'OVEEN IWH955 instantaneous water heater is a modern hot water device designed for efficient and demand-oriented hot water preparation. With its wall-mounted design and digital temperature display, it offers user-friendly operation and precise control over water temperature. Made from high-quality stainless steel, the device combines durability with an appealing design in Inox and black colors. The N'OVEEN IWH955 is designed for mains operation, ensuring a reliable power supply. With a maximum pressure capacity of 600 kilopascals (kPa) and an IPX4 protection rating, it is both safe and robust, making it ideal for use in various environments. The installation is done on a table, allowing for flexible setup. This product is an excellent choice for anyone who values quality and efficiency in hot water preparation.
3. 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. Not suitable for use with a hose shower connection.
Comfortable operation: Simple temperature setting, infinitely adjustable from 35 to 85 °C, with possible temperature limit settings 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 lock through adjustable temperature limit and scald protection. Tested safety by the VDE testing institute, frost protection, made in Germany.
Installation: Easy installation with plug; a power outlet and cold water connection are sufficient for under-sink mounting.
Country approval: Germany.
Modern, appealing design. Infinitely adjustable temperature setting. Wall bracket for easy installation. Resettable safety temperature limiter. Excellent thermal insulation with minimal external dimensions. Connection cable with protective contact plug. Temperature limit can be selected via the rotary knob. Pressureless (open) small storage heater for under-sink installation. The resettable safety temperature limiter is reset by unplugging the device. Installation and use only with a low-pressure fitting.
Pressureless, open small storage heater for under-sink installation. The temperature is adjusted infinitely via a rotary knob. Low standby energy consumption. The safety temperature limiter is reset by unplugging the device. The corrosion-resistant inner container made of polypropylene is equipped with a copper heating flange and insulated with recyclable EPS foam. The electrical connection cable features a protective contact plug.
AEG Haustechniklow-pressure water heater Huz 5 Basis, 5-litre under-sink boiler, with plug
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4. Stiebel Eltron DCE 11/13 Electronic compact instantaneous water heater for the kitchen, under-sink, VDE tested
The DCE 11/13 electronic compact instantaneous water heater from Stiebel Eltron is an efficient solution for hot water supply in the kitchen or bathroom. With its compact dimensions, the device is ideal for under-sink installation, preserving valuable storage space in cabinets. The simple operation is managed via a rotary knob, allowing for stepless adjustment of the desired water temperature between 20 and 60 °C. Thanks to the innovative bare wire heating system, the water is heated quickly and efficiently. The instantaneous water heater is equipped with a multi-level safety concept that includes temperature monitoring and scald protection to ensure user safety. The installation is quick and straightforward due to the PROFI-RAPID installation system, making it a practical choice for various applications.
- Compact design for space-saving installation under the kitchen sink or in the bathroom - Adjustable water temperature from 20 to 60 °C for individual comfort - Energy and water-saving 3i technology with electronic power control - Multi-level safety concept with temperature monitoring and scald protection - Easy and quick installation through the PROFI-RAPID installation system.
Stiebel EltronDCE 11/13 Electronic compact instantaneous water heater for the kitchen, under-sink, VDE tested
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5. Bosch Home Comfort Tronic Comfort Compact
The Bosch electronic small instantaneous water heaters impress with their compact design and thoughtful functionality. They are the ideal solution for almost any hand wash basin. Enjoy perfectly tempered water. The TR4000R 4 ET variant is ready to plug in.
The Clage MBH 3 small instantaneous water heater is a compact and efficient hot water appliance designed for use in various applications. With a rated output of 3.5 kW and an energy efficiency class A, this instantaneous water heater offers a reliable and immediate hot water supply. The appliance is pressure-resistant and is therefore suitable for use in pressurised systems. It is simply mounted on a table, which makes installation in different environments easier. The MBH 3 is equipped with a bare-wire heating system that enables the water to be heated quickly. With a weight of only 1500 grammes and compact dimensions, the instantaneous water heater is easy to handle and integrate. Manufactured in Germany, the Clage MBH 3 stands for quality and durability. Energy efficiency class A for low energy consumption. Pressure-resistant design for versatile applications. Compact design for easy installation. Bare-wire heating system for rapid hot water supply.
The Regent instantaneous water heater with a volume of 15 liters offers an efficient solution for providing hot water. With a compact design measuring 360 mm in length, 330 mm in width, and 410 mm in height, it is ideal for various installation locations. The energy efficiency class A ensures environmentally friendly operation and helps minimize energy consumption. With a rated power of 1200 watts, this wall-mounted heater reliably delivers hot water, while its weight of 8.3 kg allows for easy handling and installation. Made in Italy, the Regent instantaneous water heater combines quality and functionality, making it a practical choice for households that value a consistent hot water supply.
The Bosch Klein Storage Tronic TO is an efficient water heater specifically designed for under-sink installation. With a volume of 5 liters and a rated power of 2.2 kW, it provides a reliable solution for hot water generation in households. The storage tank features a pressureless design that allows for easy installation. Thanks to the stepless temperature adjustment from 35 to 85 °C, users can customize the water temperature to their preference. The small storage unit is equipped with intelligent features, including a pressure and drip stop that prevents water loss during heating. The high-quality thermal insulation made of polystyrene ensures a low standby energy consumption of only 0.18 kWh per day, making it an environmentally friendly choice. Additionally, the small storage unit offers a safety temperature limit and is equipped with touch and moisture protection according to IP24D, ensuring extra safety.
- Pressure and drip stop to prevent water loss - Energy-saving mode with low standby energy consumption - Stepless temperature adjustment from 35 °C to 85 °C - Safety temperature limit for added protection - Easy installation with ClickFix plus mounting technology.
The Truma electric water heater provides a reliable hot water supply for mobile applications with a capacity of 14 liters, suitable for motorhomes, caravans, and similar recreational vehicles. Made from durable stainless steel with black accent components, this compact unit delivers consistent performance while maintaining energy efficiency. The 14-liter volume offers ample hot water for multiple uses such as dishwashing, personal hygiene, and general cleaning tasks. Designed for easy installation and operation, this electric water heater features intuitive controls and a robust construction that withstands the demands of mobile living environments. The stainless steel housing resists corrosion, ensuring long-term durability, while the compact dimensions optimize space utilization in tight vehicle interiors. This model operates with standard power connections commonly found in camping facilities and living areas, providing flexibility for various usage scenarios. The unit includes all necessary mounting hardware and connection fittings for simplified installation. With its balanced combination of capacity and efficiency, this water heater meets the practical needs of travelers seeking reliable access to hot water without excessive energy consumption. The design prioritizes safety with integrated thermal protection and pressure regulation systems. Maintenance requirements are minimal due to the high-quality materials and thoughtful construction. This product represents a practical solution for enhancing comfort during extended travel periods or seasonal outdoor activities.
