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Stiebel Eltron DHB18/21/24ST Trend Electronic Control Instantaneous Water Heater
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The Stiebel Eltron DHB18/21/24ST Trend is a high-performance, three-phase instantaneous water heater engineered in Germany for consistent and efficient hot water delivery. This model features an adjustable power rating, which can be set to 18, 21, or 24 kW at 400V during installation, providing flexibility for different requirements. With precise electronic control, it maintains a stable outlet temperature, selectable from 20°C to 60°C, ensuring comfort and safety for single or multiple draw-off points.
Advanced Performance and Safety
Equipped with a bare wire heating system, the DHB ST Trend provides rapid heat-up times for on-demand hot water. Its electronic control system not only ensures accurate temperature delivery but also incorporates an electronic air detection system for enhanced safety. The unit is designed for durability and is suitable for use in both hard and soft water areas.
Key Features
- Electronic Temperature Control: Rotary selector for precise temperature adjustment between 20°C and 60°C.
- Selectable Power Output: Power rating can be set to 18, 21, or 24 kW upon installation to match your home's needs.
- Profi-Rapid® Installation: A smart installation system designed for quick, straightforward, and cost-effective setup.
- Advanced Safety System: Features an electronic air detection system and a childproof setting (anti-scalding protection) that can be set to 43°C, 50°C, or 55°C.
- Bare Wire Heating System: Ensures fast heating and is ideal for both soft and hard water conditions.
- Solar Compatibility: Suitable for operation with preheated water from a solar heating system.
- Made in Germany: A testament to quality engineering, durability, and reliable performance.
Technical Specifications
- Model: DHB18/21/24ST Trend
- Power Rating (400V): 18 / 21 / 24 kW
- Power Rating (380V): 16.2 / 19 / 21.7 kW
- Control Unit: Electronic Control
- Dimensions (H x W x D): 466 x 225 x 116 mm
- Weight: 2.9 kg
- Protection Level: IP25 (Protected against water jets)
- Max. Working Pressure: 1.0 MPa (10 bar)
- Min. Working Pressure: 0.02 MPa (0.2 bar)
- Start Flow Rate: >3 L/min
- Pipe Connection: 15mm (G1/2″)
- Outlet Applications: Single or Multiple
Warranty and Accessories
This product comes with a 2-year warranty. An optional wired remote control (Model: FB1 LCD Trend) is available for separate purchase.
The product information above is for reference only; everything is subject to the brand's official website.
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Customer reviews
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Jo***w
STIEBEL ELTRON 斯寶亞創 嘅Instantaneous-Water-Heaters簡潔樣又方便，安裝員工服務好好👷♂️
Au******i
This water heater is especially suitable for newly renovated homes, easy to use, and also attractively priced.👏
Ma*****a
呢個instantaneous water heater好靚啊，實用又方便！唔使等熱水，快過👍
Wi******n
呢個熱水爐瞬間換熱水，夠力！裝修完一定要考慮番呢款🔥
Xa******a
呢個電熱水爐非常節能，適合日常使用，好實惠又耐用💪
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Installation
Electric Water Heaters
Standard Installation
| Item | Charge |
|---|---|
| Site inspection (non-refundable) | Installed by agent; charges apply separately |
| Instant type (three-phase or single-phase) | Installed by agent; charges apply separately |
| Shower type | Installed by agent; charges apply separately |
| Pressure type, 6.5 gallons or below | Installed by agent; charges apply separately |
| Pressure type, 10 gallons or above | Installed by agent; charges apply separately |
| Horizontal type | Installed by agent; charges apply separately |
| Remove and dispose of old unit | Installed by agent; charges apply separately |
Standard Installation Scope
| Type | Included |
|---|---|
| Instant type | Includes 3 ft exposed wiring Includes 4 ft plastic-coated hot/cold copper pipe |
| Shower type | Includes 10 ft exposed electrical cable Includes 4 ft plastic-coated hot/cold copper pipe and 2 fittings |
| Pressure type | Includes 10 ft exposed electrical cable Includes 3 ft plastic-coated hot/cold water pipe and 7 fittings |
Electric Water Heater Additional Installation Charges (For Reference Only)
| Item | Charge |
|---|---|
| Plastic-coated hot/cold copper pipe (per ft) | HK$30 |
| White discharge-valve copper pipe (within 8 ft) | HK$100 |
| Copper pipe fitting (each) | HK$30 |
| Pressure reducing valve | HK$400 |
| Add tee water connection if no water inlet is available | HK$200 |
| Install one electrical point (includes 15 ft cable and circuit breaker) | HK$800 |
| Install branched electrical point (includes 10 ft cable) | HK$250 |
| Extend power cable (per ft) | HK$20 |
| Extend power cable (three-phase ×4, per ft) | HK$80 |
| Staircase handling (per floor per item) | HK$30 |
| Tung Chung and Ma Wan installation surcharge (per order) | HK$100 |
| Discovery Bay installation surcharge (per order): 3 units or fewer | HK$300 |
| Discovery Bay installation surcharge (per order): more than 3 units | HK$600 |
Delivery Charges
Basic Delivery
| Item | Charge |
|---|---|
| Delivery (per item) | HK$100 |
| Tung Chung, Ma Wan and Discovery Bay surcharge (per delivery) | HK$100 |
| Carrying distance to delivery location exceeds 100 m | Additional charges apply |
Note: Charges may differ if delivery is arranged by an agent. Please contact us for details.
Staircase Handling
Except for village houses, where 14 steps count as one floor, other buildings count 10 steps as one floor. The first 5 steps are free of charge.
| Item | Charge |
|---|---|
| General appliances | HK$30 / item / floor |
| Window AC, 3/4 HP to 1 HP | HK$30 / item / floor |
| Window AC, 1.5 HP to 2.5 HP | HK$50 / item / floor |
| Window AC, 3 HP or above | To be discussed |
| Split AC, refrigerator, washing machine | HK$50 / item / floor |
| Built-in oven, steam oven, chimney hood, built-in / freestanding dishwasher | HK$50 / item / floor |
Note: Charges may differ if delivery is arranged by an agent. Please contact us for details.
General Notes
- The above installation fees are quoted for work handled by BBE’s appointed contractor / appointed registered electrical contractor.
- Charges may differ if delivery/installation is handled by other agents or contractors. Please contact us for details.
- A compliant power supply must be provided by the customer near the appliance.
- Items not listed in this fee schedule must be discussed with the technician.
- The installation location must be confirmed by the customer. Relocation or reinstallation after installation at the customer’s request will be quoted separately.
- Installation schedule: Hong Kong Island (Tue, Thu, Sat); Kowloon (Mon to Sat); New Territories (Mon to Sat).
- Delivery coverage excludes outlying islands, restricted areas and overseas locations.
- Delivery or installation is generally arranged during office hours. For non-office hours such as evenings or public holidays, please check feasibility in advance.
Why us?
Why Choose BBE?
The trusted choice for more than 300,000 households in Hong Kong. We focus on exceptional quality, professional guidance, and a more peace-of-mind shopping experience.
Multiple Large Showrooms
Experience in person · Compare on the spot
Visit our flagship showrooms in Mong Kok, Causeway Bay, and Tuen Mun. Explore more than 1,000 European, American, and Japanese kitchen appliances, and get on-site recommendations from professional advisors for selection and installation.
Mong KokCauseway BayTuen Mun
100% Official StockNo parallel imports · Clear warranty coverage
All appliances are official products from the Hong Kong authorised distributors. Enjoy at least one-year manufacturer warranty and a 7-day replacement guarantee for faulty items, for added peace of mind after purchase.
Real Customer Service · Dedicated Follow-upOrder confirmation · Peace of mind follow-up
Each order is handled by a dedicated team who contacts and confirms details to ensure smooth delivery and installation. You can also reach real customer service via WhatsApp or phone call.
1-to-1 Expert ConsultationInstant support · Professional answers
Get real-time professional support via WhatsApp. Whether you need help comparing appliance specifications, checking dimensions, or answering installation questions, our expert team will respond promptly.
Award-WinningRecognized by brands · Valued service
Our service quality is recognized by the industry and top brands. We have received the TGC Sales Gold Award from the Gas Company and Daikin’s Diamond-level “Daikin Star” honor, along with multiple partner awards and distributor recognitions.
Safe Shopping · Professional InstallationOne-stop service · More peace of mind
Our website uses SSL encryption, supports multiple electronic payment methods, and provides a one-stop professional delivery and installation service, making the entire shopping process more convenient and reassuring.
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