Instant Water Heaters & Instant Heater Taps

Stiebel Eltron PHB 21 Wall Mounted Electric Three-Phase Instant Water Heater for Central Installation 21kW

Key features:

  • Electric Three-Phase
  • Maximum Power: 21 kW
  • Maximum Flow Rate: 11.6 lt/min
  • Dimensions: 48.5 x 22.6 x 9.3 cm

Instant water heater Stiebel Eltron, hydraulically controlled, for sink, kitchen sink, shower or bathtub.

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326,64
Deliveryuntil Mon, 24 Feb
+14,00 €shipping cost

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2 years warranty

from 326,64 €

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  1. Official reseller

    PHB 21 Wall Mounted Electric Three-Phase Instant Water Heater for Central Installation 21kW

    Store information
    329,00 €

  2. Official reseller

    PHB 21 Wall Mounted Electric Three-Phase Instant Water Heater for Central Installation 21kW

    Store information
    326,64 €

  3. Official reseller

    PHB 21 Wall Mounted Electric Three-Phase Instant Water Heater for Central Installation 21kW

    Store information
    329,00 €

  4. Official reseller

    PHB 21 Wall Mounted Electric Three-Phase Instant Water Heater for Central Installation 21kW

    Store products
    326,64 €

  5. Official reseller

    PHB 21 Wall Mounted Electric Three-Phase Instant Water Heater for Central Installation 21kW

    Store information
    329,00 €

  6. Official reseller

    PHB 21 Wall Mounted Electric Three-Phase Instant Water Heater for Central Installation 21kW

    Store information
    328,00 €

Description

Ready for everything

Whether your home has soft or hard water, it doesn't make any difference to this robust device. Thanks to the bare wire heating system, this instant water heater is suitable for almost all water properties and always provides good performance.

Installation

It is central and can be used either as the main water heating option for your home or as a supplementary. It can provide hot water throughout the house for your everyday needs, as long as there are suitable pipes for the distribution of hot water. This may result in heat and energy losses due to distance.

Top Features of the Product

  • Hydraulic control
  • Four power stages - two manually adjustable, two hydraulically controlled
  • Bare wire heating system resistant to salts

What is an instant water heater?

The instant water heater is a type of heater that heats water in real time

.

It only heats the water that passes through it at that moment. There is no storage tank for hot water. This has many advantages, such as energy saving, as only the water that is used is heated, as well as longer lifespan, as there is no water tank and accumulation of salts in the heating element and other components.

It operates on electricity and is three-phase, so a three-phase power supply is required.

How It Works

The instant water heater has a cold water inlet pipe, which passes through the heating element, heats up, and comes out in the hot water outlet pipe. A necessary condition for the instant water heater to initially operate is the pressure of the cold water inlet should not be too low.

The temperature of the water is regulated by a thermostat, so that it does not exceed a maximum value. The temperatures that the hot water reaches are pre-set so that someone can use the hot water directly, without the need for mixing with cold water.

The maximum temperature that can be reached for hot water production is 55 °C, while the maximum flow rate of the water reaches up to 11.6 liters per minute. As an indication, 38-42 °C degrees are the standard for shower use.

Advantages of instant water heaters compared to traditional electric water heaters

  • It is small in size and does not take up much space.
  • There is no energy loss, as only the water that is being used is heated at that moment. Therefore, there is savings on the electricity bill. In a traditional water heater, the unused hot water goes to waste.
  • The hot water used in the instant water heater is used as is, without mixing with cold water, as in a traditional water heater. This also saves water, in addition to electricity.
  • There is no need to wait for the water to heat up. As soon as we turn on the faucet, hot water starts running in a few seconds. A traditional water heater takes a few minutes, depending on its size.
  • The hot water never runs out. As long as we have the faucet open, we will have hot water.

Specifications

Product Guides

User Manual

Product Details

Power Source
Three-phase electric
Maximum Power
21 kW
Maximum Flow Rate
11.6 lt/min
Maximum Temperature
55 °C
Temperature Setting
Heating Levels
Placement
Central Installation
Wall Mounted
Yes
Inverter
No
Remote Control
No

Dimensions

Height
48.5 cm
Width
22.6 cm
Depth
9.3 cm

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews

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  • Dimitrios_kassaras
    5
    3 out of 3 members found this review helpful
    This review is about the maximum power: 18 kW

    I have had it as my main one for three years now, and especially in the low setting for the shower. Hot water in a few seconds. Perfect and more economical than regular water heaters

    Translated from Greek ·
    • Construction quality
    • Water heating speed
    • Hot water temperature
    • Quiet
    • Value for money
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