Description

Stiebel Eltron DHB-E 18/21/24 LCD Tankless Electric Water Heater

Stiebel Eltron DHB-E 18/21/24 LCD Tankless Electric Water Heater is an electronically controlled instantaneous water heater designed to deliver accurate hot-water temperatures with advanced 3i technology. With selectable 18 kW, 21 kW and 24 kW output in one appliance, it provides flexibility for homes and applications requiring powerful on-demand hot water.

The DHB-E LCD uses three electronic sensors to continuously control the water temperature. This helps maintain a precise and stable outlet temperature up to the appliance’s output limit. The integrated LCD display and rotary selector make temperature adjustment straightforward, with the temperature selectable from 20°C to 60°C in 1°C increments.

According to the official STIEBEL ELTRON product information, the appliance is designed to supply several suitable draw-off points with domestic hot water and can also be combined with a compatible wireless remote control.

Stiebel Eltron DHB-E 18/21/24 LCD Tankless Electric Water Heater – Key Features

• Selectable 18/21/24 kW output in one appliance
• 3i electronic temperature control for accurate hot-water delivery
• LCD temperature display for easy monitoring
• 20°C to 60°C temperature setting
• 1°C temperature selection increments
• Rotary selector for convenient temperature adjustment
• Designed to supply multiple suitable draw-off points
• Optional 43°C anti-scalding limit
• Compatible with a suitable wireless remote control
• IP25 protection rating
• Energy efficiency class A
• Compact wall-mounted design

Powerful 18/21/24 kW On-Demand Water Heating

The Stiebel Eltron DHB-E 18/21/24 LCD Tankless Electric Water Heater provides three selectable output levels: 18 kW, 21 kW and 24 kW. This allows the appliance to be configured according to the electrical installation and hot-water requirements of the property.

Unlike a conventional storage water heater that keeps a quantity of water heated inside a tank, an instantaneous water heater heats water as it passes through the appliance. This makes the DHB-E LCD suitable for applications where on-demand hot water and a compact installation are important.

For customers comparing different electric water-heating technologies, GeyserMart also offers a range of instant water heaters, including different capacity and performance options.

Advanced 3i Technology for Accurate Temperature Control

One of the key features of the Stiebel Eltron DHB-E 18/21/24 LCD Tankless Electric Water Heater is STIEBEL ELTRON’s 3i technology. Three electronic sensors continuously monitor the water conditions so that the electronic control system can regulate the water temperature.

This closed-loop control is designed to provide accurate temperature delivery up to the appliance’s maximum output. The result is greater temperature consistency compared with simpler instantaneous water-heating systems.

The manufacturer specifically states that the DHB-E 18/21/24 LCD provides accurate temperature delivery from 20°C to 60°C using 3i technology.

LCD Display and Precise Temperature Adjustment

The integrated LCD display makes it easier to see the selected temperature while using the appliance. Temperature selection is carried out using the rotary selector on the front of the unit.

The temperature can be selected from 20°C to 60°C, with adjustment available in 1°C increments. This allows the user to select a preferred hot-water temperature rather than relying on a limited number of preset temperature levels.

For bathrooms where temperature control is particularly important, the LCD interface provides a simple way to monitor the selected setting.

Designed for Multiple Hot-Water Draw-Off Points

The Stiebel Eltron DHB-E 18/21/24 LCD Tankless Electric Water Heater is designed for supplying several suitable draw-off points with domestic hot water. This makes the appliance relevant for homes and other installations where hot water may be required at more than one outlet.

The actual suitability of an installation depends on the available electrical supply, water flow, pipework and the requirements of the property. A qualified electrician and appropriate installation professional should confirm the installation requirements before purchase.

If you are comparing this product with storage-type systems, you can also explore GeyserMart’s storage water heater range.

Optional 43°C Anti-Scalding Protection

Safety and temperature control are important considerations when selecting an electric water heater. The Stiebel Eltron DHB-E 18/21/24 LCD Tankless Electric Water Heater includes an optional anti-scalding function that can be activated with a permanent temperature limit of 43°C.

This feature can be useful in installations where limiting the maximum hot-water temperature is desirable. The anti-scalding limit should be considered as part of the overall hot-water safety strategy for the property.

STIEBEL ELTRON lists the 43°C permanent limit as an available anti-scalding function on the DHB-E 18/21/24 LCD.

Selectable 18 kW, 21 kW and 24 kW Output

A major advantage of this model is the ability to select between three rated output levels in the same appliance. The rated output is 18/21/24 kW, giving greater flexibility when planning the electrical installation.

The manufacturer specifies rated current values of 29/31/35 A and fuse protection of 32/32/35 A for the corresponding configuration. The exact electrical configuration must be checked against the installation requirements and local electrical regulations.

Compact Design for Wall-Mounted Installation

The Stiebel Eltron DHB-E 18/21/24 LCD Tankless Electric Water Heater has a compact wall-mounted format measuring approximately 466 mm high, 225 mm wide and 116 mm deep. Its compact dimensions can be useful where installation space is limited.

The appliance has a white finish and weighs approximately 2.90 kg according to the manufacturer’s technical data. The unit also carries an IP25 protection rating and has an A energy efficiency class according to the manufacturer’s published specifications.

Technical Specifications of Stiebel Eltron DHB-E 18/21/24 LCD

Note: Technical specifications may vary depending on the selected voltage and installation configuration. Always verify the electrical requirements before installation. The specifications above are based on the manufacturer’s current technical information for product number 236745.

Applications of the Stiebel Eltron DHB-E 18/21/24 LCD

The Stiebel Eltron DHB-E 18/21/24 LCD Tankless Electric Water Heater can be considered for residential and other suitable applications where a high-output instantaneous electric water heater is required.

• Bathrooms requiring on-demand hot water
• Homes requiring hot water at multiple suitable outlets
• Premium residential bathrooms
• Renovation projects where compact water heating is required
• Applications where precise electronic temperature control is preferred
• Installations requiring selectable 18/21/24 kW output

The appropriate output level should be selected based on the property’s electrical supply, water demand, flow requirements and installation conditions.

Installation and Electrical Safety

The Stiebel Eltron DHB-E 18/21/24 LCD Tankless Electric Water Heater requires a suitable electrical installation and should not be connected without checking the property’s electrical capacity and applicable installation requirements.

STIEBEL ELTRON recommends that appliances that are not fully wired and ready to plug in should be installed by the local power supply utility or a registered electrician. The electrician can also assist with any agreement or approval required by the relevant power supply utility.

For professional installation information, refer to the official STIEBEL ELTRON information for professionals.

Before ordering, customers should confirm the available electrical supply, phase configuration, cable sizing, protection requirements, water pressure and installation location with a qualified professional.

Wireless Remote Control Compatibility

The DHB-E 18/21/24 LCD can be combined with a compatible wireless remote control. STIEBEL ELTRON lists the FFB 4 EU wireless remote control and the FFB 4 Set EU as accessories for this product family.

This provides an additional option for users who want remote operation of a compatible electronic instantaneous water heater.

Why Buy Stiebel Eltron DHB-E 18/21/24 LCD from GeyserMart?

Choosing a high-output instantaneous water heater requires more than simply comparing the product price. Electrical capacity, water pressure, application, outlet requirements and installation conditions should all be considered before selecting the model.

At GeyserMart, we help customers understand the practical requirements before purchasing a water heater. Our team can assist with product selection, installation coordination and after-sales support for suitable products.

If you are looking for other online water-heating options, visit our online water heater collection or explore the complete GeyserMart water heater range.

If you are unsure whether 18 kW, 21 kW or 24 kW is suitable for your home, you can contact GeyserMart before placing your order.

Frequently Asked Questions

Choose the Right High-Output Tankless Water Heater

The Stiebel Eltron DHB-E 18/21/24 LCD Tankless Electric Water Heater combines selectable 18/21/24 kW output, electronic 3i temperature control, LCD temperature display and adjustable 20–60°C temperature selection in a compact appliance.

For customers who need accurate temperature control and on-demand hot water, this model provides a high-output solution while allowing the appropriate rated output to be selected during installation.

Need help selecting the correct water heater? Visit the GeyserMart shop or contact our team for assistance with choosing a suitable model for your requirements.