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Comfort instantaneous water heaters
HDB-E 18 Si

  • 360°
    • Electronically controlled instantaneous water heater
    • Ideal replacement for hydraulic instantaneous water heaters
    • Sufficient hot water for multiple draw-off points
    • Constant DHW temperature of 55 °C thanks to 2i technology
    • Individual temperature adjustment through mixing with cold water
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    Product details

    Enjoy today, look forward to tomorrow

    This electronic instantaneous water heater is always a good choice. It supplies several draw-off points in your home, irrespective of whether you have hard or soft water. Achieve your preferred temperature by mixing in cold water directly at the tap.


    Out with the old, in with the new

    Should you put up with the vagaries of your old instantaneous water heater or opt for a replacement? The instantaneous water heater easily settles this question. Your qualified contractor can install it quickly and simply thanks to the PROFI-RAPID installation system. Existing holes, even from other manufacturers’ models, can be used. So why not simply bid your old appliance farewell?


    ERP product datasheet
    Technical datasheet

    Product Number: 232004

    Rated voltage: 400 V

    Rated voltage 1: 380 V

    Rated voltage 2: 400 V

    Rated output: 18 kW

    Rated output 1: 16.2 kW

    Rated output 2: 18 kW

    Rated current: 26 A

    Rated current 1: 24.7 A

    Rated current 2: 26 A

    Fuse protection: 25 A

    Fuse protection 1: 25 A

    Fuse protection 2: 25 A

    Frequency: 50/60 Hz

    Frequency 1: 50/60 Hz

    Frequency 2: 50/60 Hz

    Phases: 3/PE

    Temperature setting: 55 °C

    Colour: white

    Height: 470 mm

    Width: 225 mm

    Depth: 117 mm

    Weight: 3.60 kg

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Installation Information:

Please ask your local power supply utility or a registered electrician to install appliances that are not fully wired, i.e. ready to plug in. The electrician should also be able to assist you with obtaining the agreement of the respective power supply utility required for the appliance installation.