Stiebel Eltron DEL 18/21/24 SLI 24000W Electronic Control Water Heater
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The Stiebel Eltron DEL 18/21/24 SLI Electronic Control Water Heater is a high-performance instant water heating solution, offering flexible power outputs of 18 kW, 21 kW, or 24 kW. This advanced unit is engineered for precision and efficiency, featuring electronic control that allows for exact temperature adjustment between 30 °C and 60 °C. Its innovative design helps in saving up to 20% on both water and energy consumption, making it an ideal choice for modern households seeking comfort and reduced utility costs. The compact, soft-line design and robust bare wire heating system with a pressure-tested copper casing ensure durability and reliable performance.
Key Features
- Energy and Water Savings: Designed to save up to 20% water and energy, contributing to lower utility bills and environmental responsibility.
- Precise Temperature Control: Electronic control enables temperature adjustment to the nearest degree, within a range of 30 °C to 60 °C, ensuring your desired comfort.
- Elegant Design: Features an exclusive soft-line design that seamlessly integrates into contemporary bathrooms and utility spaces.
- Advanced Safety: Equipped with an electronic safety system, including air detection, for enhanced user protection.
- Versatile Application: Suitable for use with pre-heated water sources, such as solar heating systems, and effective in both hard and soft water areas.
- Durable Heating System: Utilizes a bare wire heating system with a pressure-tested copper casing for long-lasting performance and reliability.
- Optional Remote Control: Offers the convenience of an optional wireless remote control for easy adjustments.
Technical Specifications
- Model: DEL 18/21/24 SLI
- Power Output Options: 18 kW / 21 kW / 24 kW (selectable)
- Dimensions (H x W x D): 478 mm x 225 mm x 105 mm
- Power Connection: 3/PE 400 V 50 Hz
- Rated Current:
- 18 kW: 29 A
- 21 kW: 31 A
- 24 kW: 35 A
- Recommended Fuses:
- 18 kW: 32 A
- 21 kW: 32 A
- 24 kW: 35 A
- Temperature Adjustment Range: 30 °C to 60 °C
- Minimum Water Conductivity at 15°C: 111 mS/m
- Color: White
- IP Rating: IP25
- Weight: 5.20 kg
The product information above is for reference only; everything is subject to the brand's official website.
Stiebel Eltron DEL 18/21/24 SLI 24000W Electronic Control Water Heater Review
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.
Real Customer Service · Dedicated Follow-up
Order 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 Consultation
Instant 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.
100% Official Stock
No parallel imports · Clear warranty coverage
All appliances are official products from the Hong Kong总代理. Enjoy at least one-year manufacturer warranty and a 7-day replacement guarantee for faulty items, for added peace of mind after purchase.
Award-Winning
Recognized 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 Installation
One-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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