STIEBEL ELTRON HDB-E21Si Instantaneous Water Heater (3-Phase Power Supply)
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- HK$4,470
- HK$4,336
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DISCON.
The STIEBEL ELTRON HDB-E21Si Instantaneous Water Heater is a high-performance and compact solution designed for efficient hot water supply. Operating on a 3-phase power supply, this model provides powerful heating at 21 kW (400V) or 19 kW (380V). Engineered with a bare wire heating system encased in pressure-tested copper, it ensures rapid water heating and exceptional durability. Its advanced electronic safety system, including air detection and temperature cut-off, guarantees reliable and safe operation for your hot water needs.
Product Overview
The STIEBEL ELTRON HDB-E21Si is an advanced instantaneous water heater tailored for spaces requiring a consistent and on-demand hot water supply. Its tankless design offers significant space-saving benefits while eliminating standby heat loss, contributing to energy efficiency. This unit is ideal for centralized hot water applications, providing comfort and convenience with a fixed temperature output of 55°C.
Key Features
- Instantaneous Hot Water: Provides hot water on demand, eliminating the need for a storage tank and reducing energy waste.
- Bare Wire Heating System: Utilises a highly efficient bare wire heating element within a pressure-tested copper casing for rapid and reliable heating.
- Robust Safety Features: Equipped with an electronic safety system, including air detection and a temperature cut-off device, for enhanced operational safety.
- High Flow Rate: Capable of delivering a continuous flow rate from 5.6 to 12.3 l/min (depending on model and installation conditions), with a minimum flow rate of 2.3 l/min.
- Durable Construction: Built to withstand working pressures up to 10 Bar and features an IP25 protection level, making it hoseproof and suitable for various installations.
- Compact Design: With dimensions of 470 x 225 x 117 mm, its sleek profile allows for installation in limited spaces.
- Electronic Control: Features an electronic control unit for precise and reliable performance.
Technical Specifications
- Model: HDB-E21Si
- Type: Instantaneous Water Heater
- Power Supply: 3-Phase Power
- Power Rating: 21 kW (at 400V) / 19 kW (at 380V)
- Water Flow Rate: 5.6 – 12.3 l/min (dependent on model and conditions)
- Minimum Flow Rate: ≥ 2.3 l/min
- Temperature Adjustment: Fixed 55℃
- Working Pressure: 10 Bar
- Protection Level: IP25 (Hoseproof)
- Pipe Size: 15mm (G1/2″)
- Weight: 3.6 kg
- Control Unit: Electronic Control
- Outlet Applications: Centralized
- Heating System: Bare wire heating system
- Safety Systems: Electronic air detection system, Electronic safety system with temperature cut-off device
- Dimensions (H/W/D): 470 x 225 x 117 mm
The product information above is for reference only; everything is subject to the brand's official website.
STIEBEL ELTRON HDB-E21Si Instantaneous Water Heater (3-Phase Power Supply) Review
Installation
| *Water Heater Standard installation fee | |||
| Site inspection(No return) | Ask For Agent | ||
| Instantaneous Water Heater | Ask For Agent | ||
| Shower Unit Storage Water Heater | Ask For Agent | ||
| Central System Storage Water Heater (8 gal or below) | Ask For Agent | ||
| Central System Storage Water Heater (10 gal or above) | Ask For Agent | ||
| Horizontal Installation charge | Ask For Agent | ||
| Uninstall and take away the old machine | Ask For Agent | ||
| *Instantaneous Water Heater Standard installation include: | |||
| a.3ft power cord (Surface wiring) | |||
| b.4ft white plastic coated copper pipe for hot and cold water | |||
| *Shower Unit Storage Water Heater Standard installation include: | |||
| a.10ft power cord (Surface wiring) | |||
| b.4ft white plastic coated copper pipe for hot and cold water & 2 Copper pipe accessories | |||
| *Central System Storage Water Heater Standard installation include: | |||
| a.10ft power cord (Surface wiring) | |||
| b. 3ft white plastic coated copper pipe for hot and cold water & 7 Copper pipe accessories | |||
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| *Water Heater extra fee(For reference only) | |||
| White plastic coated copper pipe for hot and cold water | $30 / ft | ||
| White plastic pipe with drain valve (below 8ft) | $100 | ||
| Copper pipe accessories | $30/ each | ||
| Air Bleed valve | $400 | ||
| Make a new water input | $200 | ||
| Split the electricity from one socket(include the 10ft Power cord) | $800 | ||
| Power cord extension | $20 / ft | ||
| Power cord extension(3-phase*4) | $80 / ft | ||
| Stairs fee | $30 (10steps) | ||
| Installation surcharge for Tung Chung / Ma Wan area | $100 | ||
| Installation surcharge for Discovery Bay area | $400 | ||
| REMARK | |||
| *Other agents or other contractors deilvery fee/installation fee will be different. For more information, please contact our inquiry | |||
| Standard power socket be provlded by customer | |||
| If extra installation fee is not in the installation list,need to quote. | |||
| Location of installation are decided by customer.Any re-location after installation shall be subjected to extra charge. | |||
| Delivery | |
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| Installation Schedule | |
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Why us?
Why Choose BBE?
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