---
product_id: 641506588
title: "Latest generation electronic instantaneous water heater HDB-E 18/21/24 trend, precise temperature thanks to 2i technology, internal desired temperature, VDE tested, 204209"
brand: "stiebel eltron"
price: "HK$4562"
currency: HKD
in_stock: true
url: https://www.desertcart.hk/products/641506588-latest-generation-electronic-instantaneous-water-heater-hdb-e-18-21
store_origin: HK
region: Hong Kong
---

# 24 kW high power output Rapid pro installation system Precise 2i dual-sensor temperature control Latest generation electronic instantaneous water heater HDB-E 18/21/24 trend, precise temperature thanks to 2i technology, internal desired temperature, VDE tested, 204209

**Brand:** stiebel eltron
**Price:** HK$4562
**Availability:** ✅ In Stock

## Summary

> 🌊 Instant Hot Water, Infinite Comfort — Stay Ahead with STIEBEL ELTRON!

## Quick Answers

- **What is this?** Latest generation electronic instantaneous water heater HDB-E 18/21/24 trend, precise temperature thanks to 2i technology, internal desired temperature, VDE tested, 204209 by stiebel eltron
- **How much does it cost?** HK$4562 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/641506588-latest-generation-electronic-instantaneous-water-heater-hdb-e-18-21)

## Best For

- stiebel eltron enthusiasts

## Why This Product

- Trusted stiebel eltron brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First:** Built-in scald protection and child lock ensure peace of mind for your home or office.
- • **Versatile & Compact:** Sleek, pressure-resistant design fits seamlessly in kitchens and bathrooms with up to 10 bar pressure.
- • **Power-Packed Performance:** Switch effortlessly between 18, 21, or 24 kW for tailored hot water flow.
- • **Effortless Pro Installation:** Save time with a rapid installation system compatible with all standard fittings.
- • **Precision Temperature Control:** 2i technology with dual sensors guarantees stable, exact water temps every time.

## Overview

The STIEBEL ELTRON HDB-E 18/21/24 trend is a cutting-edge electronic instantaneous water heater featuring 2i dual-sensor technology for precise temperature control. Offering flexible power settings up to 24 kW and a rapid professional installation system, it delivers consistent hot water flow at up to 10.7 liters per minute. Designed for safety with scald protection and child lock, this compact, pressure-resistant unit is ideal for multiple kitchen and bathroom points, ensuring energy-efficient, reliable hot water on demand.

## Description

STIEBEL ELTRON Latest generation electronic instantaneous water heater HDB-E 18/21/24 trend, precise temperature thanks to 2i technology, internal desired temperature, VDE tested, 204209

## Features

- Areas of use: electronic instantaneous water heater for hot water supply to several removal points in the kitchen and bathroom; the closed, pressure-resistant device can be used with all standard pressure fittings
- Comfort features: the desired hot water temperature is set by a specialist in the device; desired temperature can be adjusted to 35, 43, 50, 55 °C
- Energy-saving: the 2i technology ensures an almost constant hot water temperature with 2 sensors
- Safety: To activate the scald protection or child lock, a specialist can permanently limit the outlet temperature of the water
- Installation: time-saving installation thanks to the professional rapid installation system and effortless replacement of all standard instantaneous water heaters; high power connection optionally at the top or bottom
- Box contents: Stiebel Eltron instantaneous water heater HDB-E 18/21/24 trend, hanging bar, mounting template, special accessories, operating and installation instructions (English language not guaranteed)
- Country approval: Germany

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | EHT Dienstleistungsgesellschaft |
| Part number | 204209 |
| Item Weight | 2.84 Kilograms |
| Product Dimensions | 22.5 x 22.5 x 46.6 cm; 2.84 kg |
| Item model number | 204209 |
| Size | 18/21/24 kW umschaltbar |
| Color | White |
| Style | 2023 |
| Material | Plastic Alloy Steel |
| Shape | Rectangular |
| Power source type | High power connection |
| Voltage | 400 Volts |
| Wattage | 24 KW |
| Item Package Quantity | 1 |
| Flow Rate | 10.7 Liters Per Minute |
| Maximum Pressure | 10 Bars |
| Plug Profile | Wall |
| Special Features | 2i technology |
| Included components | STIEBEL ELTRON instantaneous water heater, Wall hanging, mounting template, Plastic moulding disc, plastic connectors/mounting aid, cap and back wall guide, jumper for temperature adjustment, jumper for power switching, 2 double , 3-way ball shut-off valve for cold water, T-piece for hot water, flat seals, strainer, Operating and installation instructions (English language not guaranteed) |
| Batteries Required? | No |

## Product Details

- **Brand:** Stiebel Eltron
- **Capacity:** 10.7 Liters
- **Power source:** High power connection
- **Product dimensions:** 22.5W x 46.6H centimeters
- **Special features:** 2i technology

## Images

![Latest generation electronic instantaneous water heater HDB-E 18/21/24 trend, precise temperature thanks to 2i technology, internal desired temperature, VDE tested, 204209 - Image 1](https://m.media-amazon.com/images/I/51cUA55veiL.jpg)

## Available Options

This product comes in different **Size, Style** options.

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**Shop now:** [https://www.desertcart.hk/products/641506588-latest-generation-electronic-instantaneous-water-heater-hdb-e-18-21](https://www.desertcart.hk/products/641506588-latest-generation-electronic-instantaneous-water-heater-hdb-e-18-21)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-06*