# Tankless Electric Instantaneous Boiler STIEBEL ELTRON DHE 18/21/24 Vertical, 24 kW, thermostat 20–60°C

**URL:** https://aio.lv/en/product--stiebel-eltron-202656--12236135
**Data updated:** 2026-04-07 17:23 (EEST)
**Category:** Water Heaters
**Manufacturer:** stiebel eltron
**Manufacturer code:** 202656
**EAN:** 4017212026564
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 867.49 €
**Prices and availability valid until:** 2026-08-02 23:59
**Price without VAT (21%):** 716.93 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--stiebel-eltron-202656--12236135

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 17.07.2026 | free |
| Courier delivery to door | 22.07.2026 | 4.99 EUR |

## Summary description

STIEBEL ELTRON DHE 18/21/24 is a vertical tankless (instantaneous) solo electric boiler delivering up to 24,000 W for on-demand hot water. Designed for vertical installation, it features a built-in thermostat adjustable from 20 to 60 °C, 400 V AC input at 50–60 Hz and compact dimensions (225×116×466 mm). Suited for domestic or light-commercial hot water supply with energy efficiency class A.

## Long description

STIEBEL ELTRON DHE 18/21/24 Vertical is a tankless electric instantaneous boiler that delivers up to 24 kW of power for on-demand domestic or light-commercial hot water. Designed for vertical installation, the unit features a built-in thermostat adjustable from 20 to 60 °C, 400 V AC input at 50–60 Hz and compact dimensions (225×116×466 mm). Fully electronic control with 4i technology compensates for changes in inlet conditions to maintain the set outlet temperature, while a backlit multifunction display and a haptic rotary selector provide clear information and intuitive operation.
Advantages
The DHE instantaneous water heater supplies hot water at the exact set temperature every time by using electronic regulation and 4i technology, minimising temperature fluctuations during varying flow rates or inlet conditions. ECO mode and visible energy and water consumption indicators support efficient operation and transparency. The device includes multiple safety and convenience functions such as temperature limiting, programmable temperature memory, automated filling routines and child protection, making it suitable for households and small commercial installations where consistent and safe hot water delivery is required.
Suitable for
Domestic showers and washbasins where stable temperature is required
Small offices or commercial washrooms with multiple draw-off points
Installations with limited space that require vertical, compact water heating
Applications that need precise electronic temperature control and ECO operation
Key specifications
Maximum power output: up to 24 kW
Thermostat adjustment range: 20–60 °C
Supply voltage: 400 V AC, 50–60 Hz
Installation orientation: vertical
Compact dimensions: 225 × 116 × 466 mm
Control: fully electronic with 4i regulation technology
User interface: illuminated multifunction display and haptic rotary selector
Modes: ECO mode and programmable temperature memory
Indicators: energy and water consumption, flow rate and status displays
How to use
Install the unit vertically following local electrical and plumbing regulations and ensure a suitable 400 V AC supply and proper circuit protection. Set the desired outlet temperature using the rotary selector and the illuminated display; the appliance will regulate power automatically to maintain the chosen temperature. Use ECO mode to reduce energy consumption where appropriate, and consult the display for real-time information on flow, consumption and device status. For multi-point supply, verify required flow rates and adjust settings to match user demand.
Usage recommendations
For reliable performance, ensure regular inspection of electrical connections and water filters, and follow the manufacturer’s service intervals. Use ECO mode when lower flow or lower temperature is acceptable to improve energy efficiency. When installing for multiple draw-off points, verify that combined flow does not exceed the heater’s capacity to maintain the set temperature.

## Specifications

### Design

| Feature | Value |
|---|---|
| Type | Tankless (instantaneous) |
| Placement supported | Vertical |
| Fuel type | Electric |
| International Protection (IP) code | IP25 |
| Boiler system | Solo boiler system |
| Product colour | White |

### Performance

| Feature | Value |
|---|---|
| Noise level | 15 dB |
| Thermostat range | 20 - 60 |
| Maximum power | 24000 W |
| Efficiency | 39 % |

### Power

| Feature | Value |
|---|---|
| Energy efficiency class | A |
| Annual energy consumption | 476 kWh |
| AC input frequency | 50 - 60 |
| AC input voltage | 400 |
| Energy efficiency scale | A+ to F |

### Ergonomics

| Feature | Value |
|---|---|
| Built-in display | Yes |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 3.1 kg |
| Height | 466 mm |
| Width | 225 mm |
| Depth | 116 mm |

## FAQ

### How much does the STIEBEL ELTRON DHE 18/21/24 tankless 24 kW boiler cost, and is it available for purchase?

The price is 867.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 17.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can STIEBEL ELTRON DHE 18/21/24 tankless 24 kW boiler be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All stiebel eltron products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized stiebel eltron service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: type, placement supported, energy efficiency class, weight, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for STIEBEL ELTRON DHE 18/21/24 tankless 24 kW boiler?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/12236135/68109792_large.webp