Instantaneous Type Water Heater HDB-E21Si

Instantaneous Type Water Heater HDB-E21Si

Stiebel Eltron

HK$ 3,000

CLP staff will contact customer by phone for confirmation of delivery date and additional installation service charges if required.
  • Product Details
  • Specification

Stiebel Eltron Instantaneous Type Water Heater HDB-E21Si

HDB-E Si series electronic-controlled instantaneous water heater can be used in a wide range of locations and provide hot water supply to different areas in a house simultaneously, like kitchen and bathroom. It is also suitable for both soft water and hard water. In winter, an appropriate hot water temperature can be guaranteed through the auto adjustment of the built-in flow limiter. Its low starting volume allows it operating normally in a condition of low inlet water flow.

  • Electronic safety system with air detection
  • Min. flow rate 2.3 l/min
  • Bare wire heating system with pressure-tested copper casing
  • Hoseproof to IP25
  • Wired comfort remote control (option)
  • *Compared hydraulic instantaneous water heaters; subject to pattern of use.

New Move-In Offer / Gas Switching to Electric Offer

Enjoy $200 awards* upon purchasing Electric Water Heater

*The entire bonus reward will be credited to the applicant's account and can only be used solely for the purpose of settling CLP Power electricity bill. (Registration with valid documents required))

The offer is valid until 30th Jun 2020 and subject to Terms & Conditions.  Click Here for more details.


  • Type: Fully Electronic Control
  • Dimension(mm: height x width x depth): 470 x 225 x 117
  • Temperature: 55℃
  • Pressure: Working: maximum 10 Pa
  • Starting volume: ≧2.3L
  • Protection level: IP25
  • Inlet size: 15mm(G1/2″)
  • Weight: 3.6kg
  • 2 years Warranty